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Thank you very much for the pics!
I do have one question though - how come my laser cutter does not have a huge resistor like that (I guess that is for current limiting?)

On a side note. I have a...

I would highly appreciate it!!!

So you are using something similar to this one?
MKS BASEV1 2 3D Printer Controller Board for RAMPS1 4 Arduino 2560 Remix Board | eBay

And, in addition, it will require two of these?
Geeetech...

I've put a lot of work into this machine but the controller and software are just crap. It would stop engraving in the middle of work for no good reason and what's going on with MOSHI DRAW - I could...

And another question... how can I tell if the ways are really straight or not?

@Kees Soeters - when you say gantry you mean this, right? 291966
So the idea is to loosen the gantry from the machine body, loosen the rods (X&Y) at one end, secure the gantry into the machine frame...

So I finally have some time to get back to this issue I am having with the machine for a long time. It is not possible to align the beam on all locations on the cutting area. After checking, double...

I have several boxes that I would like to engrave precisely. Positioning them on the cut table without a jig is not possible. I am wondering how can this be done?
How can I cut a jig for the parts...

OK so for this you need to import several files to a single workplace and than you send a group to a new layer. how can you import stuff and move them around + center them without moshi screwing...

so you have changed the control?

If you use MOSHI please let me know how are you able to cut and engrave at the same pass. I can't seem to do it.

Do you also have a K40 type machine?

So this is my real problem huh? I am using 40% at times to cut poplar plywood and I am not happy with the outcome as too much wood is being burned off so the fitting is not tight enough. I wish I...

@Mcbridge19 - it is 50.8mm focal length. So you are suggesting that it is focused too far down (beyond the cutting table)?
My lens is 12mm in diameter, seems like the 38.1mm mirrors are larger, so...

If it would be possible I would like to hear about this... how can I actually change the angle of the beams if the holes are already threaded?

I have a part with an irregular shape and I would like to fit another part around it. The 2nd part is defined as a sheet metal part so I can bend it and when it is straight apply some patterns to it....

I understand the procedure, however the machine only has 3 screws between each beam to the adjacent one, how does that allow control on the angle? I think it will always return to the same position.

Thank you very much, I can understand that of course however I am wondering how can I adjust the angle on the table?

Currently I have another type of birch plywood (does not seem to be any superior quality). I can cut 3.8mm thick at 50% power (from 40W) at 10mm/sec. If would also cut at 40% however sometimes the...

I've been suggested at the forum to loosen the belt on the X axis and open the screws and re-tighten them. I am not sure if the belt it tight enough or perhaps too tight? When the X axis (laser head)...

I would be very happy to have the video! I just upgraded to 2015 a few days ago. Can't see any difference?

Attached are DXF files for the fan box.
You will need 1 front, 1 back, 2 of each "side" panel (adjusted to your required dimensions), 2 fan brackets and as many adapter rings as you need - I used 27...

I can upload DXF files, no problem - just give me a couple of days and I'll get it up here. One thing you might have noticed is that there's an extension to the original box (you can see that well in...

K40 type machines come with useless exhaust which leaves all the smoke in the machine and in the room you are working in. Use the machine to build a housing for power fans which will do a superior...

I checked the mirror on the cutting head and indeed it was dirty. I had a new mirror so I swapped it, did a small change but not too much. BTW - I need to adjust the distance of the mirror and the...

I tried cutting at 2mm/sec with 95% power and air assist and it came out ugly and did not went through. What is wrong?

By the way I have a question: Can I accurately position an object for engraving? For example, lets say I have a box 2" by 2" and I want to engrave something dead center. How can I position it and...

I need to take 2 or 3 days off from tuning this... it took several days until I got everything to work. I also had to change the tube, do some fixing on the control boards (diodes exploded WTF) and...

The X axis is not traveling at 90 degrees in relation to the Y axis, 100% sure. That's why I can't get a perfect calibration on all corners.

I've actually made a huge step forward yesterday... I ended up leaving the mirrors as they are and moved the XY table + mount for the 1st mirror. After about 2 hours I had a pretty good alignment....