Yet another K40 laser tube mount. I just picked up a K40 a few weeks ago and decided to roll my own mount. I’m always open for suggestions on improving it.
Very nice…I would like to have an extruder like that but its not in my toy budget right now. However, I do have a 3 axis full sized cnc mill I can make them on when I get time. Thanks for the Fusion file!!
@Steve_Clark this should work well on a CNC. One could even slice it and cut multiple layers of 1/8" acrylic on the K40 and weld them together. It’s a simple design.
@Steven_Kalmar Very nice! I know what I will be printing up this weekend!
Well I have already started printing.
HalfNormal, Print two and send me one - Grin -
@HalfNormal let me know how it goes. What are you printing it in? I used PETG.
@Steven_Kalmar using PLA that I have.
@Steve_Clark You need two so one is not going to do you much good! 
Darn…I should have said set! Heh… Heh…
Just installed a pair of this tonight, made getting perfect alignment on the first mirror simple. Getting them installed on the other hand… Took me a few headscratches. There’s not much room in there for laser tube, screwdriver and brackets.
Ended up having to leave the rear (inner most) frame bolts and the sliders off, and jiggle the bases around the tube+clamps and tighten the frame down then snap the sliders on, finally nipping up everything after alignment. It’s a good design. If I ever end up pulling the tube, I’ll probably slip a small spring over the adjustment bolts so the clamps are pushed back - it’s only an issue if you need to loosen them to move the tube down or in.
Possibly having sockets for nuts in the base would make external assembly easier, that way your able to pushfit the nuts and bolt up through the floor.
If anyone’s interested in Metric, the bolts for one clamp are: 4x M5x50mm, 2x M4x30mm and 4x M3x10-20mm. I only had M4 hex head so had to ream out the hole in the clamps to recess the heads.
I have mine printed and going to try and get them on soon.
If anyone is interested, here is the size comparison between the @DIY3DTECH.com version and @Steven_Kalmar version.
@HalfNormal How did it fit? I only have access to my machine, so I don’t know the variations of the different machines out there.
Not in yet but the test fit looks good. Still working on mods so the unit is not all together.
@Craig_Insane_Cheese There isn’t much room in the channel. Fortunately it’s not something you’d have to install often. I made the slots in the base because I didn’t know how much slide adjustment would be required. I guess not much since the mirror has some slide adjustment to it. It wouldn’t be difficult to embed nuts in the base and feed the bolt through the bottom, except that the bolt length would have to be just enough to go through the nut without it interfering with the tube. The base would have to be wider to accept the nut. That’s why I decided to use socket head bolts through the top. All I had on hand were long bolts, so this way length didn’t matter. I’ll probably make some changes and update Thingiverse after I have some time with them. I haven’t used the machine very much. I just got everything dialed in and made my first successful cut.
A spring is an excellent idea. Perhaps from an old pen.
@Steven_Kalmar Makes sense, I was just lucky having some 15mm long M5 bolts on hand. I’d say most people are probably going to have longer bolts. Also depends on head type, if you have hex head instead of Phillips/Flat/Socket.
Pretty easy to make bolts shorter (longer is much harder 
). Screw on a couple nuts, cut to length (hacksaw, Dremel, etc), file or grind a small bevel (aka chamfer) on the threaded end, then unscrew the nuts to realign the threads. Might take a try it two the first time so get some extras or practice on one you don’t need.