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K40 Laser Reverse Mirror Alignment? - What was wrong with my Unit!
Рет қаралды 12,163
Күн бұрынMirror Alignment of a K40 is quite a task.
Since my last video you guys gave me so much input that i had to check what is wrong with my K40 Laser! This video is not a tutorial, i think there are very good videos out there explaining step by step how to achieve perfect alignment of the three mirrors.
However there was an ad on youtube showing a bracket to reverse align your Laser Cutter, so of course i had to try this out in order to find a simple solution to a quite annoying problem. I 3D printed a bracket in order to mount a 5mw Laser diode to the laser head, sending a visible laser beam the opposite direction from the head to the tube.
The files to print your own bracket are free to download on my Webpage where you also find the red dot laser diode holder and all of my other projects.
Spoiler:
it did not work... but this little tool can help to adjust the "Laser head-sled" as there are quite a few parts that may wobble out of alignment over time.
In my case i found a broken Hex Bar that forced my laser to come out of alignment when the sled moves to certain spots in the machine do to the cable chain. A quite annoying problem i only found out because i disassembled the sled.
I hope you enjoy this experiment!
Download my .obj files for the brackets and the red dot laser diode holder for the K40 Laser:
bit.ly/3gK20Iy
Blue Air Assist Laser Head: bit.ly/38NRVaR
In my eyes one of the best arranged tutorials about calibrating the K40 mirrors can be found on John Cabrer´s channel:
• The Short K40 Laser Al...
Order some new K40 Mirrors:
amzn.to/32dFjsg
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Disclaimer:
Please note that the K40 is a class 4 laser product. Operating the Laser with the lid open as seen in the video is extremely dangerous! I am wearing special safety goggles while filming and monitor the machine remotely when recording timelapses. Do not attempt this with your machine!
#MancaveEffects #K40Laser #Mirroralignment
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@klave8511 2 жыл бұрын
One omission in your process is to check if the red laser beam is in line with its body. Every single laser I have tried (of about 30 from various sources) does not emit in a direction co-axial with the holder. They alway shine off to one side (or up or down) by quite a large angle. Just roll it on a flat surface to see the rod draw a circle where it hits a metre or so away. The first thing to do with that holder you made is to align the beam with the holder by adjusting the angle. Then you can start your alignment. If you don’t do this the third mirror will be out of alignment and the beam may hit the side of the air assist cone. If you have only the original lens holder you won’t notice the effect.
@cerberus333dog 4 жыл бұрын
I like the way you are going about the alignment . The eccentric nut on the rollers is a factor that I have not seen on other videos on allignment.
@torau5817 3 жыл бұрын
I think your backward alignment is a very good way to set up the alignment! As a last step you should have done the alignment of the tube to shoot in the same direction as your red dot came from. I think if you had changed the position of the tube everything would have been good.
@SindhGraphix 2 жыл бұрын
Wow.. good.. i am facing allignment prblm.. you teach me with cheap way.. love you.
@philsowers 4 жыл бұрын
Seems like a good idea to reverse align to get the laser head in the right location. I had a problem with ghosting on my bottom right area similar to your issues. 👌
@Henchman1977 4 жыл бұрын
I have the exact same issue with my k40, just haven't had the opportunity to investigate the cause (causes?)... Your video will certainly help!
@MancaveEffects 4 жыл бұрын
If you have questions, the community here and i will try to help you.
@MancaveEffects 4 жыл бұрын
I forgot to mention that another possible option of reverse aligning would be to tape the laser tube, give it a short burst and adjust the red laser dot to the burn mark 🤔
@happybrainybren 4 жыл бұрын
focal position is your problem but its not something you can change on that machine you would have to alter the height of the bed and the drop of the z axis, if alignment was out all radius edges would be rough where as straight edges would be clean, the same rules that apply to larger industrial co2 lasers such as bystronics and lvds apply here.
@krugtech 2 жыл бұрын
try vinegar and brasso metal polish on the mirrors
@DerGreve 4 жыл бұрын
Reverse calibration seems like a good Idea! That would have been helpful in the past. My mirrors are aligned so that they are hit right in the middle. It was a complete pain in the ass to get this done and I wasn't able to achieve it before I got new mounts for the Mirrors. Because of that I dont mind the edges getting scratched a little. I've still got the original K40 mirrors. The mounts, and their capability to be adjusted in every direction, where what made the biggest difference for me. I also got a Laserhead which is adjustable in the height, what makes it super easy to get the right focus for different material size.
@MancaveEffects 4 жыл бұрын
The K40 definately lags some height adjustable mirror brackets. Where did you got these from? So with your laser head you can adjust the lens height? Interesting!...
@DerGreve 4 жыл бұрын
@@MancaveEffects I'll send you a Dm
@royaltee4809 3 жыл бұрын
I'm having a very very hard time aligning...I've tried aligning from mirror 1-3 and 3-1 and still no luck. where can I purchase the laser tool? maybe the laser alignment light will help me...please help!
@Manachtron 4 жыл бұрын
Nice reference to Steve1989 MRE Info - nice hiss !
@MancaveEffects 4 жыл бұрын
Love his videos, great channel!
@flufygrowth 4 жыл бұрын
Did you buy the mirrors in Europe?? Where?
@MancaveEffects 4 жыл бұрын
Yes i did, i added the Amazon link in the description.
@walterhynson2898 3 жыл бұрын
your entire machine is not level that will cause the alignment to go wacky and when you realign the optics and move the head its out of aligniment again.
@micromouseonline 3 жыл бұрын
Why do you think the reverse alignment failed to work correctly?
@MancaveEffects 3 жыл бұрын
I think that due to the fact that they use the cheapest 35w laser tube imaginable the output of the tube is not 100% centric. That causes the whole operation to fail. Maybe one day when i replace the tube with something better it may work. At least thats my theory.
@karadanvers6136 3 жыл бұрын
video begins @10:53
@sskkuuddrraa 3 жыл бұрын
This is like balancing rim, then tire, then putting rim on tire and balancing again. As experiments, its ok, but nothing more.
@karadanvers6136 3 жыл бұрын
this was a good video but then you fast forwarded the actual part of getting it to align manually. :( had to give you a thumbs down for that. but then since you handed out the .obj file i had to give you a thumbs up again.
Mancave Effects
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