guided-learning:alignment
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| guided-learning:alignment [2026/03/25 21:55] – [Recommended Tools] Photos Jesse Bourassa | guided-learning:alignment [2026/05/05 22:27] (current) – [General Alignment Practices] Jesse Bourassa | ||
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| One of the most common but unfortunately confusing aspects about maintaining your laser is that the colors can get misaligned. In this guide, we will discuss what kinds of misalignment can happen, how to best avoid misalignment, | One of the most common but unfortunately confusing aspects about maintaining your laser is that the colors can get misaligned. In this guide, we will discuss what kinds of misalignment can happen, how to best avoid misalignment, | ||
| - | ## INSERT INSTAGRAM LINK ## | + | [[https:// |
| - | + | ===== What is Alignment? | |
| - | ==== What is Alignment? ==== | + | |
| When we talk about alignment of a laser projector, there are actually two things we may be talking about, **Module Alignment**, | When we talk about alignment of a laser projector, there are actually two things we may be talking about, **Module Alignment**, | ||
| Line 13: | Line 12: | ||
| Before we can align our laser, we need to first understand what alignment issue is causing your laser' | Before we can align our laser, we need to first understand what alignment issue is causing your laser' | ||
| - | === Module Alignment === | + | ==== Module Alignment |
| The way modern lasers work is by combining large arrays of diodes into tight grid arrays. This uses several techniques, but the result is that a single laser beam could have hundreds of individual laser diodes and beams all combined. | The way modern lasers work is by combining large arrays of diodes into tight grid arrays. This uses several techniques, but the result is that a single laser beam could have hundreds of individual laser diodes and beams all combined. | ||
| Line 35: | Line 34: | ||
| There are a few different designs of mounts which we will discuss later. | There are a few different designs of mounts which we will discuss later. | ||
| - | === Color Convergence === | + | ==== Color Convergence |
| Line 75: | Line 74: | ||
| {{ : | {{ : | ||
| - | === Examples of Misaligned Lasers === | + | ==== Examples of Misaligned Lasers |
| Here are some examples of what different kinds and different complexities of misalignment look like to help you determine what needs to be adjusted. | Here are some examples of what different kinds and different complexities of misalignment look like to help you determine what needs to be adjusted. | ||
| - | {{ : | + | == Single Color Convergence Issue: == |
| - | {{ : | + | Blue too far down. |
| + | {{ : | ||
| + | == Multiple Color Convergence Issues: == | ||
| + | Red too far up. Blue too far down. | ||
| + | {{ : | ||
| + | == Single Module Alignment Issue: == | ||
| + | Blue split, partially going up. | ||
| {{ : | {{ : | ||
| - | {{ : | + | == Multiple Module alignment Issues: == |
| + | Red split, partially going left and right. | ||
| + | {{ : | ||
| + | == Single Module and Single Color Issue: == | ||
| + | Red too far down. Blue split, partially going up. | ||
| {{ : | {{ : | ||
| - | {{ : | + | == Multiple Module, Multiple Color Misalignment Issues: == |
| - | ==== Types of Optics Mounts ==== | + | Red split, partially going left and right. |
| + | {{ : | ||
| + | |||
| + | ===== Types of Optics Mounts | ||
| Inside today’s laser show projectors you will generally find 3 kinds of mounts, both inside and outside the laser modules. These mounts all provide similar usefulness, but serve different price ranges and applications. All of these mounts’ goal is to hold some sort of optic and align them over both X and Y axis to position the beam where it needs to go. | Inside today’s laser show projectors you will generally find 3 kinds of mounts, both inside and outside the laser modules. These mounts all provide similar usefulness, but serve different price ranges and applications. All of these mounts’ goal is to hold some sort of optic and align them over both X and Y axis to position the beam where it needs to go. | ||
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| ## 20 Picture of inside a laser with all kinds of mounts (or collage of many) ## | ## 20 Picture of inside a laser with all kinds of mounts (or collage of many) ## | ||
| - | === Friction Mounts === | + | ==== Friction Mounts |
| The most common type of mount you will find inside a laser module is a **Friction Mount**. This is when the optic is attached to a two-piece arrangement of brass. These two pieces are screwed together and then screwed onto the base plate of the module. These two connection points become the x and y movements for our optics. | The most common type of mount you will find inside a laser module is a **Friction Mount**. This is when the optic is attached to a two-piece arrangement of brass. These two pieces are screwed together and then screwed onto the base plate of the module. These two connection points become the x and y movements for our optics. | ||
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| Friction mounts get aligned by prying the x and y axis back and forth by using a thin pry bar or metal pick in the drilled holes seen on the mounts. The main reason these get misaligned is the screws loosened to the point where there wasn’t enough friction to hold it in place in a hard hit or with strong vibrations. | Friction mounts get aligned by prying the x and y axis back and forth by using a thin pry bar or metal pick in the drilled holes seen on the mounts. The main reason these get misaligned is the screws loosened to the point where there wasn’t enough friction to hold it in place in a hard hit or with strong vibrations. | ||
| - | === Flexure Mounts === | + | ==== Flexure Mounts |
| **Flexure Mounts** are easier to adjust than friction mounts, but less smooth than kinematic mounts. Thus, they also live in the middle of cost to produce. Flexure mounts are often used for dichroic mounts on lower cost lasers and sometimes found inside modules on medium to high end laser modules. | **Flexure Mounts** are easier to adjust than friction mounts, but less smooth than kinematic mounts. Thus, they also live in the middle of cost to produce. Flexure mounts are often used for dichroic mounts on lower cost lasers and sometimes found inside modules on medium to high end laser modules. | ||
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| The main drawback to flexure mounts is they are very sensitive to overtightening, | The main drawback to flexure mounts is they are very sensitive to overtightening, | ||
| - | === Kinematic Mounts === | + | ==== Kinematic Mounts |
| **Kinematic Mounts** are the highest end manual type of mount in laser show projectors. These work by propping up the optic mounting plate with a ball bearing, two high thread count screws, and two springs to hold the plate against the screws. The two high thread count screws serve to move the optic in the X and Y Axis. | **Kinematic Mounts** are the highest end manual type of mount in laser show projectors. These work by propping up the optic mounting plate with a ball bearing, two high thread count screws, and two springs to hold the plate against the screws. The two high thread count screws serve to move the optic in the X and Y Axis. | ||
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| {{ : | {{ : | ||
| - | Kinematic mounts are often positioned close to the walls of a laser projector, and projectors typically have access panels so technicians can use them during setup of a show to fix alignment | + | Kinematic mounts are often positioned close to the walls of a laser projector, and projectors typically have access panels so technicians can use them during setup of a show to fix color convergence |
| {{ : | {{ : | ||
| - | High Quality | + | High quality |
| - | === Motorized Mounts === | + | ==== Motorized Mounts |
| Often just referred to as moto-dichros, | Often just referred to as moto-dichros, | ||
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| These motorized mounts are generally more precise then a human finger can be and can allow for very clean alignment, as well as emergency pre-show alignment without needing to get to the laser physically. | These motorized mounts are generally more precise then a human finger can be and can allow for very clean alignment, as well as emergency pre-show alignment without needing to get to the laser physically. | ||
| - | ==== Know your Technical Limits ==== | + | ===== Know your Technical Limits |
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| Basically, we will guide you through the process, but we also don’t want you to end up in a worse position than you were before. So, please consider the risks and skills needed to perform a full alignment.// | Basically, we will guide you through the process, but we also don’t want you to end up in a worse position than you were before. So, please consider the risks and skills needed to perform a full alignment.// | ||
| - | ==== Recommended Tools ==== | + | ===== Recommended Tools ===== |
| {{ : | {{ : | ||
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| - | ==== General Alignment Practices ==== | + | ===== General Alignment Practices |
| When doing any laser alignment, it’s best to follow best practices to get the best result: | When doing any laser alignment, it’s best to follow best practices to get the best result: | ||
| - | • Long Distance | + | === Long Distance |
| When aligning lasers, you will generally want to throw the beam as far as you can. When we perceive a laser being sharp and tight, it’s because we are always trying to focus out to infinity. And while you probably don’t have an infinitely-sized shop, you will want to get as much distance as possible as it improves the visual resolution of what you are aligning. | When aligning lasers, you will generally want to throw the beam as far as you can. When we perceive a laser being sharp and tight, it’s because we are always trying to focus out to infinity. And while you probably don’t have an infinitely-sized shop, you will want to get as much distance as possible as it improves the visual resolution of what you are aligning. | ||
| - | ## 31 Show a long distance setup ## | + | {{ : |
| + | |||
| + | === Bounce Mirrors === | ||
| - | • Bounce Mirrors | ||
| One way to get a very long distance even with a smaller space is to bounce the beam back and forth a few times before looking at the beam to align. Be sure to use only first surface mirrors so there is no double reflection. This also allows you to bounce the beam right back next to where you are so you can get a good view of the beam you are aligning. | One way to get a very long distance even with a smaller space is to bounce the beam back and forth a few times before looking at the beam to align. Be sure to use only first surface mirrors so there is no double reflection. This also allows you to bounce the beam right back next to where you are so you can get a good view of the beam you are aligning. | ||
| - | ## 32 Show a bounce mirror | + | {{ : |
| + | |||
| + | === Binoculars === | ||
| - | • Binoculars | ||
| If you are aligning the beam on site, or cannot get a bounce or a friend to call the movements out, using optical magnifiers like binoculars or a spotting scope can help get a good view of the beam at a great distance. | If you are aligning the beam on site, or cannot get a bounce or a friend to call the movements out, using optical magnifiers like binoculars or a spotting scope can help get a good view of the beam at a great distance. | ||
| - | ## 33 Show a technician looking at a target at distance using binoculars ## | + | {{ : |
| + | |||
| + | === Eye Protection === | ||
| - | • Eye protection | ||
| If you are opening a laser, and especially a module, to do an alignment, it can be easy to accidentally use a reflective tool and shine full power beams all over the place. We recommend all users, but especially beginners, use some sort of power-reducing eyewear to reduce their risk while aligning. The recommended pair of eye protection for this kind of job can be found on the Pangolin website: | If you are opening a laser, and especially a module, to do an alignment, it can be easy to accidentally use a reflective tool and shine full power beams all over the place. We recommend all users, but especially beginners, use some sort of power-reducing eyewear to reduce their risk while aligning. The recommended pair of eye protection for this kind of job can be found on the Pangolin website: | ||
| - | ## Technician | + | [[https:// |
| - | ## 34 Show a technician looking at the inside of a laser, with that reflection in the glasses ## | + | {{ : |
| + | |||
| + | === Be Mindful of Burn Risks === | ||
| - | • Be Mindful of Burn risks | ||
| Lasers are still high-intensity light that can burn skin or set fire to materials, when working inside a laser often people forget their fingers are very close to these intense and hot beams. Burns are more common when doing an alignment over eye damage, though generally has less severe consequences. Be mindful of your fingers when working inside a laser projector. | Lasers are still high-intensity light that can burn skin or set fire to materials, when working inside a laser often people forget their fingers are very close to these intense and hot beams. Burns are more common when doing an alignment over eye damage, though generally has less severe consequences. Be mindful of your fingers when working inside a laser projector. | ||
| - | ## 35 Show a finger | + | {{ : |
| - | • Digital tools, Beam Analyzer, Cameras | + | === Digital tools, Beam Analyzer, Cameras |
| + | |||
| Sometimes digital tools which can display your beam on a screen can be a useful less eye straining then looking directly at the beam. Often these setups are used by the manufacturers in their production to ease the strain on their employees and sometimes even get more accurate then the average eye can. One of the easiest solutions to get into this technology is with the **Beam Analyzer**, which can be purchased on the Pangolin website. | Sometimes digital tools which can display your beam on a screen can be a useful less eye straining then looking directly at the beam. Often these setups are used by the manufacturers in their production to ease the strain on their employees and sometimes even get more accurate then the average eye can. One of the easiest solutions to get into this technology is with the **Beam Analyzer**, which can be purchased on the Pangolin website. | ||
| - | ##Beam Analyzer | + | [[https:// |
| - | ## 36 Show a beam in the beam analyzer misaligned ## | + | === Make Sure Your Optics Are Clean === |
| - | • Make Sure Your Optics Are Clean | ||
| Before performing an alignment, it is best to ensure that your optics are clean and free of any debris. | Before performing an alignment, it is best to ensure that your optics are clean and free of any debris. | ||
| - | ## ADD CLEANING GUIDE ## | + | [[cleaning|How to Clean your Laser Projector]] |
| + | |||
| + | === Use the Lowest Power Necessary === | ||
| - | • Use the Lowest Power Necessary | ||
| When aligning your laser projector, you will want to set the unit to the lowest brightness that you can while still maintaining output from each diode. | When aligning your laser projector, you will want to set the unit to the lowest brightness that you can while still maintaining output from each diode. | ||
| - | ==== The Module Alignment Process ==== | + | ===== The Module Alignment Process |
| Before we talk about aligning modules, it’s important to note that usually you don’t need to do this. Modules typically stay in alignment through normal use. However if it does need to be done, it should be done before color convergence. This process may need to be done to each color in the fixture separately depending on which colors have misaligned modules. | Before we talk about aligning modules, it’s important to note that usually you don’t need to do this. Modules typically stay in alignment through normal use. However if it does need to be done, it should be done before color convergence. This process may need to be done to each color in the fixture separately depending on which colors have misaligned modules. | ||
| - | + | == Red Misaligned vs Realigned: == | |
| - | ## 37 Show pictures of misaligned modules ## | + | {{: |
| + | == Green Misaligned vs Realigned: == | ||
| + | {{: | ||
| + | == Blue Misaligned vs Realigned: == | ||
| + | {{: | ||
| + | == Didoes Misaligned, Colors Unconverged vs Correctly Aligned & Converged Projector: == | ||
| + | {{: | ||
| If each of your beams look good, skip to color convergence process. | If each of your beams look good, skip to color convergence process. | ||
| - | === Setting up your workstation === | + | ==== Setting up your workstation |
| When aligning modules, we want to isolate the individual module that needs alignment as much as possible. We will want to only output that laser, and only ever have one module opened at a time. This helps avoid accidents, reduces safety risk, and keeps dust and debris out of the modules. | When aligning modules, we want to isolate the individual module that needs alignment as much as possible. We will want to only output that laser, and only ever have one module opened at a time. This helps avoid accidents, reduces safety risk, and keeps dust and debris out of the modules. | ||
| - | ## 38 Picture inside a kvant with only one module open, and tools sitting on the other modules ## | + | {{ : |
| When aligning a module, you may need to re-center the beam onto the scanners if the module will stay inside the laser. Refer to that section if this is the case. | When aligning a module, you may need to re-center the beam onto the scanners if the module will stay inside the laser. Refer to that section if this is the case. | ||
| - | ## 39 Show a red beam on a scanner that is centered | + | {{ : |
| Some advanced technicians will take modules out of projectors to align them, but this usually only works better if the technician has a bench built to align modules. | Some advanced technicians will take modules out of projectors to align them, but this usually only works better if the technician has a bench built to align modules. | ||
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| There will be two sets of screws on any given module enclosure, one set holds the cover to the bottom and one set holds the bottom to the base plate. Identify the correct screws and loosen them all completely before lifting the module cover straight up. The cover screws generally are a smaller size then the base plate screws | There will be two sets of screws on any given module enclosure, one set holds the cover to the bottom and one set holds the bottom to the base plate. Identify the correct screws and loosen them all completely before lifting the module cover straight up. The cover screws generally are a smaller size then the base plate screws | ||
| - | ## 40 Split picture, | + | {{ : |
| + | {{ : | ||
| Plan to just shoot the beam straight out of the projector, to your target, using whatever technique like a mirror or other methods mentioned in the previous section. | Plan to just shoot the beam straight out of the projector, to your target, using whatever technique like a mirror or other methods mentioned in the previous section. | ||
| - | ## 41 Show an average setup of a beam at long distance bounced back to wall ## | + | {{ : |
| We do not want the scanners moving, so plan to just use a single hot point as a test pattern. | We do not want the scanners moving, so plan to just use a single hot point as a test pattern. | ||
| - | === Identify the Misaligned Beam === | + | ==== Identify the Misaligned Beam ==== |
| - | ## 42 Show beam on the wall with a couple flyers, circle them as bad ## | + | {{ : |
| Inside the module you will find rows of diodes, Grab something like a shutter, or thin metal card or business card, cut it to the width of one of these diode sections, and slide it in front of each diode one at a time. | Inside the module you will find rows of diodes, Grab something like a shutter, or thin metal card or business card, cut it to the width of one of these diode sections, and slide it in front of each diode one at a time. | ||
| - | ## 43 Show options as flags, shutter, | + | {{ : |
| + | {{ : | ||
| + | {{ : | ||
| As you do this, you will look at the total beam output on your target. We will slowly move from diode to diode to identify which of the beams are off, or “flyers”. When you identify one, it can be helpful to mark the diode with something erasable like a dry erase marker on top, or a sticky note or something like that. | As you do this, you will look at the total beam output on your target. We will slowly move from diode to diode to identify which of the beams are off, or “flyers”. When you identify one, it can be helpful to mark the diode with something erasable like a dry erase marker on top, or a sticky note or something like that. | ||
| - | ## 44 Show flag in front of a diode, and a marker | + | {{ : |
| Continue going through the whole module to find all diodes that may be out of alignment. | Continue going through the whole module to find all diodes that may be out of alignment. | ||
| - | === Check the tightness of the mount === | + | ==== Check the tightness of the mount ==== |
| To fix the issue of why the alignment got out of alignment in the first place, we need to check the snugness of the friction mount. This will also serve as the “make it worse” part of the process, so we can easily see the beam we need to fix, out. | To fix the issue of why the alignment got out of alignment in the first place, we need to check the snugness of the friction mount. This will also serve as the “make it worse” part of the process, so we can easily see the beam we need to fix, out. | ||
| - | ## 45 Show friction mount up close, circle the screws ## | + | {{ : |
| Start by using your thin pry bar, and stick it into the holes for both x and y, and move it very carefully, you should have resistance, but when it moves, it should not jump or skip across the surface. It needs to be a tight but predictable amount of movement to force applied. | Start by using your thin pry bar, and stick it into the holes for both x and y, and move it very carefully, you should have resistance, but when it moves, it should not jump or skip across the surface. It needs to be a tight but predictable amount of movement to force applied. | ||
| - | ## 46 Show the pry bar in the hole pushing against a side ## | + | {{ : |
| The friction mount SHOULD NOT stay in the position you hold it to when you push the pry bar. It will rebound and this is correct, we work the beam into place slowly by going more and more past the hold point. | The friction mount SHOULD NOT stay in the position you hold it to when you push the pry bar. It will rebound and this is correct, we work the beam into place slowly by going more and more past the hold point. | ||
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| If it moves to quickly or is too hard to move and jumps too quickly, you need to adjust the tightness of the screw holding the friction together. Tighten and loosen this screw very small amounts to find the right amount of friction so you can align the beam, but so it will also hold during normal transport and impact events on the road. | If it moves to quickly or is too hard to move and jumps too quickly, you need to adjust the tightness of the screw holding the friction together. Tighten and loosen this screw very small amounts to find the right amount of friction so you can align the beam, but so it will also hold during normal transport and impact events on the road. | ||
| - | ## 48 Show tightening or loosening of the screw ## | + | {{ : |
| + | {{ : | ||
| Its important that this friction is balanced well for the longevity of the alignment. | Its important that this friction is balanced well for the longevity of the alignment. | ||
| - | === Shifting the Beam into the Center of the Output === | + | ==== Shifting the Beam into the Center of the Output |
| Now that the friction mount has the correct amount of friction, we will slowly push both the X and Y axis slowly more and more past where we want it, for it to rebound to its holding location. You will want to work the beam slowly towards the main bulk of the beam. | Now that the friction mount has the correct amount of friction, we will slowly push both the X and Y axis slowly more and more past where we want it, for it to rebound to its holding location. You will want to work the beam slowly towards the main bulk of the beam. | ||
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| The grid arrangement of a module is irrelevant at distance, and the goal here is to just center the beams brightness, or its mass as tightly as possible as all beams have some level of gradient edges. | The grid arrangement of a module is irrelevant at distance, and the goal here is to just center the beams brightness, or its mass as tightly as possible as all beams have some level of gradient edges. | ||
| - | ## 50 Show picture of a before | + | {{ : |
| + | {{ : | ||
| Do this for every diode that seems off center of the total beam mass. Repeat step by step. | Do this for every diode that seems off center of the total beam mass. Repeat step by step. | ||
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| Once finished, remove any markings you may have used inside the module before closing it back up. | Once finished, remove any markings you may have used inside the module before closing it back up. | ||
| - | ## 51 Show wiping or removing of marks, and screwing down the module cover. ## | + | {{ : |
| - | ==== The Color Convergence Process ==== | + | ===== The Color Convergence Process |
| - | === Setup your workstation === | + | ==== Setup your workstation |
| To do a color convergence alignment, we want to start by opening the projector in the necessary way. Sometimes this means access panels on the sides of the projectors, sometimes this means taking the top plate off. We will want to do this on a sturdy surface with the aperture aimed towards a surface that can take the laser energy without ignition and is visible to the operator under the conditions mentioned in the “General Alignment Practices” section. | To do a color convergence alignment, we want to start by opening the projector in the necessary way. Sometimes this means access panels on the sides of the projectors, sometimes this means taking the top plate off. We will want to do this on a sturdy surface with the aperture aimed towards a surface that can take the laser energy without ignition and is visible to the operator under the conditions mentioned in the “General Alignment Practices” section. | ||
| - | ## 52 Show general setup, and show the two kinds of access panels, raw, and Elite ## | + | {{ : |
| + | {{ : | ||
| + | {{ : | ||
| It’s also recommended to ensure the beam path is clear and marked if there are other persons who may enter the area. Since generally we aren’t within the 3-meter rule when working on lasers. | It’s also recommended to ensure the beam path is clear and marked if there are other persons who may enter the area. Since generally we aren’t within the 3-meter rule when working on lasers. | ||
| - | ## 53 Show sign that says laser emission ## | + | {{ : |
| When it comes to output, we will use small patterns for the actual alignment process, but we will need to scan at full size for one of the steps, so ensure you can output a test pattern and use full scan width to ensure a safe operating area. | When it comes to output, we will use small patterns for the actual alignment process, but we will need to scan at full size for one of the steps, so ensure you can output a test pattern and use full scan width to ensure a safe operating area. | ||
| - | ## 54 Show crosshair test pattern at small size ## | + | {{ : |
| For test patterns, we find simple crosshairs can be quite useful, but most patterns which show the x and y axis along lines will satisfy. We also will need a test pattern that will output to all edges of the scanners angle, like a box or square on hand. | For test patterns, we find simple crosshairs can be quite useful, but most patterns which show the x and y axis along lines will satisfy. We also will need a test pattern that will output to all edges of the scanners angle, like a box or square on hand. | ||
| - | ## 55Show | + | {{ : |
| - | === Identify which beam doesn’t move === | + | ==== Identify which beam doesn’t move ==== |
| Before we touch any alignment mount in the fixture, we must first identify which beam is a “straight shot” to the scanners. This generally means the beam that has the least bounces, or the one all the way at the back of the beam path. This beam will only ever be reflected off mirrors, and only ever pass through dichroics. | Before we touch any alignment mount in the fixture, we must first identify which beam is a “straight shot” to the scanners. This generally means the beam that has the least bounces, or the one all the way at the back of the beam path. This beam will only ever be reflected off mirrors, and only ever pass through dichroics. | ||
| - | ## 56 Show on elite, the last beam in the linear train, | + | {{ : |
| + | {{ : | ||
| This beam is the beam we want to ensure is perfectly square in its bounces and centered onto the scanners. | This beam is the beam we want to ensure is perfectly square in its bounces and centered onto the scanners. | ||
| The other colors will be aligned to this color separately, so it’s important to identify this beam first, and not adjust it unless its not centered properly. | The other colors will be aligned to this color separately, so it’s important to identify this beam first, and not adjust it unless its not centered properly. | ||
| - | === Aligning Colors In a Single Line Optical Train === | + | ==== Aligning Colors In a Single Line Optical Train ==== |
| Lets determine if your optical train is a single line train. | Lets determine if your optical train is a single line train. | ||
| - | ## 57 Show an Elite pro linear train ## | + | {{ : |
| A single line optical train is when all beams combine along the same line towards the scanners regardless if there is a final bounce or not. | A single line optical train is when all beams combine along the same line towards the scanners regardless if there is a final bounce or not. | ||
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| Then you will want to turn off the 3rd color and only look at the beam that doesn’t move, and this second one. | Then you will want to turn off the 3rd color and only look at the beam that doesn’t move, and this second one. | ||
| - | ##59 Same picture, but turn 3rd beam off ## | + | {{ : |
| Now look down towards your beam, with your crosshair test pattern enabled, and start by adjusting your mount off from the beam that doesn’t move so you can see the clear shape and size of the beam you are adjusting. | Now look down towards your beam, with your crosshair test pattern enabled, and start by adjusting your mount off from the beam that doesn’t move so you can see the clear shape and size of the beam you are adjusting. | ||
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| Sometimes if a color is substantially a different size than others in the projector. We will want to just center the beam as much as possible and have an even “halo” of the larger color around all sides. | Sometimes if a color is substantially a different size than others in the projector. We will want to just center the beam as much as possible and have an even “halo” of the larger color around all sides. | ||
| - | ## 62 Show red halo on old spectrum 30 we have with green small inside | + | {{ : |
| + | {{ : | ||
| Once you are happy with the centering of the second color, you can move onto the third color. | Once you are happy with the centering of the second color, you can move onto the third color. | ||
| The process will be the same for the third color as the second for a single line optical train arrangement. Turn the beam on, make it worse to get a clear picture of its shape, then walk the beam into place. | The process will be the same for the third color as the second for a single line optical train arrangement. Turn the beam on, make it worse to get a clear picture of its shape, then walk the beam into place. | ||
| The result will look something like the following examples | The result will look something like the following examples | ||
| - | ## 63 Show few pictures of different fully aligned lasers from different classes. ## | + | {{ : |
| - | === Aligning Colors in a Dual Line Optical Train === | + | ==== Aligning Colors in a Dual Line Optical Train ==== |
| Let’s determine if your optical train is a dual line, or nonlinear. This is when the two colors that do move are combined outside the one that doesn’t and then added afterward. | Let’s determine if your optical train is a dual line, or nonlinear. This is when the two colors that do move are combined outside the one that doesn’t and then added afterward. | ||
| - | ## 64 Show atom or spectrum | + | {{ : |
| In the case of dual line, we want to combine the two colors that do move together first, then move them together into the beam that doesn’t move. | In the case of dual line, we want to combine the two colors that do move together first, then move them together into the beam that doesn’t move. | ||
| Line 364: | Line 399: | ||
| Look down towards your test pattern and only use these two colors that move. We will want to first start by making the alignment worse by moving the middle beam out from the first beam. | Look down towards your test pattern and only use these two colors that move. We will want to first start by making the alignment worse by moving the middle beam out from the first beam. | ||
| - | ## 67 Show on wall them way off. ## | + | {{ : |
| Now walk the beam you are adjusting back into place by adjusting the X and Y axis into place. Most mounts are not going to get a perfect down and across movement and there will be some shear on both axis of movement. We may need to walk X then Y then X again and Y again and sometimes more to get the beam together. What we want to see is the beam at your target is leveled out and there is no non mixed beam. | Now walk the beam you are adjusting back into place by adjusting the X and Y axis into place. Most mounts are not going to get a perfect down and across movement and there will be some shear on both axis of movement. We may need to walk X then Y then X again and Y again and sometimes more to get the beam together. What we want to see is the beam at your target is leveled out and there is no non mixed beam. | ||
| Line 372: | Line 407: | ||
| Sometimes if a color is substantially a different size than others in the projector. We will want to just center the beam as much as possible and have an even “halo” of the larger color around all sides. | Sometimes if a color is substantially a different size than others in the projector. We will want to just center the beam as much as possible and have an even “halo” of the larger color around all sides. | ||
| - | ## 69 Show picture of perfectly aligned green and blue. ## | + | {{ : |
| Once you are happy with the centering of these two beams. You will find another dichroic on a mount that combines these two into the third non-moving beam. Follow the same process of combining the previous two, to move them into the third non-moving beam. | Once you are happy with the centering of these two beams. You will find another dichroic on a mount that combines these two into the third non-moving beam. Follow the same process of combining the previous two, to move them into the third non-moving beam. | ||
| - | ## 70Show The green blue to red dichroic and circle it ## | + | {{ : |
| The result will look something like the following examples: | The result will look something like the following examples: | ||
| - | ## 71 Show same examples of beams aligned as single line train ## | + | {{ : |
| - | === Centering on Scanners === | + | ==== Centering on Scanners |
| One of the final alignments you may need to check is going to be the centering on the scanners. This is where we will want to change test patterns to use a full size square or grid on the scanners. | One of the final alignments you may need to check is going to be the centering on the scanners. This is where we will want to change test patterns to use a full size square or grid on the scanners. | ||
| - | ## 72 Show perfectly centered | + | ## Picture of rgb beam centered on scanners |
| To maximize performance, | To maximize performance, | ||
| - | ## 73 Use same pic, note how little | + | ## picture of RGB beam on scanners, note margin ## |
| The main goal is for our beam to not “fall off” the mirrors when they are reaching their extreme angles. You can see if the beam is falling off two ways, you will see parts of the beam inside the enclosure or shooting past the mirror onto the scanner mount, or up straight out of the projector (with the top off). | The main goal is for our beam to not “fall off” the mirrors when they are reaching their extreme angles. You can see if the beam is falling off two ways, you will see parts of the beam inside the enclosure or shooting past the mirror onto the scanner mount, or up straight out of the projector (with the top off). | ||
| - | ## 74 Show 2 pictures, one falling off x onto the scanner mount, then one falling off Y up in the air on your hand ## | + | {{ : |
| + | {{ : | ||
| Or, you can also see it when scanning at full size and the color drifts (usually starting to lose red) near the edges of the scan field. | Or, you can also see it when scanning at full size and the color drifts (usually starting to lose red) near the edges of the scan field. | ||
| - | ## 75 Show a full size test pattern | + | {{ : |
| If all corners of your projection are losing color, then the beam is too large for the mirror. And further module alignment may be required. | If all corners of your projection are losing color, then the beam is too large for the mirror. And further module alignment may be required. | ||
| - | ## 76 See if you can get a pic of this but it might be hard. ## | + | {{ : |
| If it’s just showing up on one axis or another, then that can also help identify. | If it’s just showing up on one axis or another, then that can also help identify. | ||
| - | ## 77 Picture just being on like one x axis side ## | + | {{ : |
| Most projectors have a “final bounce” This is when a mount is holding a mirror and bouncing all combined beams into the scanner. To adjust centering, we will use this mount. | Most projectors have a “final bounce” This is when a mount is holding a mirror and bouncing all combined beams into the scanner. To adjust centering, we will use this mount. | ||
| - | ## 78 Show a final bounce mirror | + | {{ : |
| Adjust the mount onto the scanner mirrors searching for the best position which reduces anything falling off the scanners and allows your test pattern to look like a constant color throughout. | Adjust the mount onto the scanner mirrors searching for the best position which reduces anything falling off the scanners and allows your test pattern to look like a constant color throughout. | ||
| - | ## 79 Show a Bad, and Good split ## | + | {{ : |
| + | {{ : | ||
| It’s important that the beam DOES NOT touch the scanners’ shaft, this can transfer extreme amounts of heat into the scanner, loosening epoxy, demagnetizing it and causing lots of damage. So, we want the beam to be centered without falling off and without touching the shaft that you will be able to see on the scanners. | It’s important that the beam DOES NOT touch the scanners’ shaft, this can transfer extreme amounts of heat into the scanner, loosening epoxy, demagnetizing it and causing lots of damage. So, we want the beam to be centered without falling off and without touching the shaft that you will be able to see on the scanners. | ||
| - | ## 80 Show picture of beam on shaft, put a big circle with a line over it to show it’s | + | {{ : |
| - | ==== Completion, and what to do if you still can’t get it right? ==== | + | ===== Completion, and what to do if you still can’t get it right? |
| At this point your laser should be aligned! And the project is complete. | At this point your laser should be aligned! And the project is complete. | ||
| If you are having trouble getting your alignment right no matter what you do, it's likely the geometry of your optical train is the thing that is messed up. This basically means your optics and mounts are no longer perfectly 90 degrees from each other or centered on each other. | If you are having trouble getting your alignment right no matter what you do, it's likely the geometry of your optical train is the thing that is messed up. This basically means your optics and mounts are no longer perfectly 90 degrees from each other or centered on each other. | ||
| - | ## 81 Do a top down picture of a kvant spectrum, show all the bounces, mark them with lines and point out they all have to be exactly 90 degrees, and the beams need to be centered to each other on each bounce | + | {{ : |
| Normally we would recommend sending a fixture with this issue into your manufacturer as getting this right is extremely difficult and technicians at factories train for months to get all this correct. | Normally we would recommend sending a fixture with this issue into your manufacturer as getting this right is extremely difficult and technicians at factories train for months to get all this correct. | ||
guided-learning/alignment.1774472145.txt · Last modified: by Jesse Bourassa
