50mm to 55mm tube mounting braket

I bought a new co2 tube, my original was a 50mm and the new one is 55mm, so i got myself some new mounting brackets that are adjustable but even in the lowest setting it will be a 1/2" to high… guessing 37mm from the mounting plate. My original ones allow the tube to sit just 1" (25.4mm) of the mounting platform. I cant seem to find any lowprofile brackets??

Would really appreciate any help as my laser has been down for awhile now.

Would you be able to take some high quality photos showing what you’re dealing with? Photos of the tube housing, old bracket, new bracket, and the height problem may help with feedback.

The black one us the oem, the white is the new 55 adjustable one, but it will make the rube too high.

That may be a challenge.

I’m not aware of any common site that sells extra low profile tube supports. I know they exist. Browsing through aliexpress may get you something workable.

However, you’ll likely not be able to get away from requiring some level of adjustment or shimming strategy to get everything aligned.

Alternatively, you could attempt to fabricate the supports yourself. A 3d printer, a working laser, or a fabrication shop could work there.

Also, it looks like the old support could potentially hold the new tube. Are you able to adjust the height of the old support to make that work.

If you want to forego all that, come up with a strategy to raise all mirrors higher to accommodate the height of the new tube and supports. But make sure there are no physical barriers to making that happen before tearing everything apart.

The oem mounts are not adjustable, they would need to expand to 55mm from 50mm. Its the mounting hieght thats the issue. All the brackets are too high. This is something that someone should make and sell, as im guessing im not the only one with the issue.

Good thought… However the reality is there is absolutely no standard on size of things.

I spoke to Russ about parts not fitting and he advised me two identical lasers, parts of which are 10mm different… It’s probably not worth it to make this…

I think what gives you the extra height is the adjustments on your new mounts. Might look for something very close, but shorter and shim it up.

@berainlb correct and I’d add you can replace the whole tube holder/m1 mount… I did that on mine. It is all one piece. The dxf file has the specifications for it’s construction.

ALL PARTS AND ASSEMBLY DIMENSIONS .dxf.txt (2.0 MB)

Good luck

:smile_cat:

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Im yet to see any supports thst are lower then these new ones i got, so i cant shim. Ive posted this question in other places as well and found others in my same situation with a cure yet. Yes, these is a need.

The challenge is making a support bracket that is both low profile and adjustable due to the mechanism.

The original support looks like it may be modular. Are you able to disassemble and reuse some of the components?

The idea is that you would shim up all the other components to match the height of the tube. This is a common problem when getting a larger tube than the machine was originally designed or tuned with.

Shimming up m1 and m2, no issue… the problem is m3/head.

The head needs to be moved up the same amount as everything else. None of these I’ve seen allow much of a Z movement…

I’d suggest @Philreddog have his head examined, so to speak, to ensure he can move it the required amount…

Have you looked at a 3d printed type…?

:smile_cat:

This is why im not using shims. I just need to get the support made