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CR-10 simple brace

by junaling, published

CR-10 simple brace by junaling Dec 25, 2017

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Summary

This is a redesign of : https://www.thingiverse.com/thing:2681839

Instead of carbon fiber tubes, this uses 1/2 inch aluminum tubes that are readily available in most hardware shops. Beefier brackets.

Parts printed without support at 0.16, 100% infill using PLA

Materials:
2x bracket
4x tube_end
2x 1/2 inch aluminum tube 58cm
6x m5 16mm
4x m5 T nut
2x m5 30mm
2x m5 nut, locking type recommended
epoxy : http://www.lepage.ca/en/lepage-products/epoxy-glue/marine-epoxy.html

Optional (painting):
spray paint, your choice of color
self etching primer : https://www.rustoleum.com/product-catalog/consumer-brands/auto/primers/self-etching-primer/

Installation :
1) at one end of the tubes, glue tube_end about 35mm in, wait until glue sets
2) install brackets, tap frame m5 holes
3) once the glue has set on one end, glue tube_end to the other end and install to the brackets and frame, let glue set. Don't use the printer while the glue sets.
4) optional : remove, prime aluminum and paint, re-install. Or you can paint before glueing

Note:
for 3 above you can do this for the 2 sides at the same time OR to make sure that the lengths are the same do it for one side first then when the glue has set, use the assembled piece as reference for the other side.

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I can't seem to find any 1/2" aluminum tubing with an ID of 10.6mm you seem to have used. All the 1/2" aluminum tubing I see has 1/16" wall thickness, which would make the ID about .375" or 9.525mm, am I missing something? What store did you grab yours at?

I got the tubes from homedepot here in Canada

This mod looks great, think I'll try it out. Do you lose any z-height with this?

There shouldn't be any loss on the z-axis, I have not done any test print. I did lose a bit not because of the brace but because of my cable chains

what is the inside diameter for the tubes?

about 10.6 mm, the shaft of the tube_end that goes in the pipe is 10.3mm

Hey! I am the owner of CR-10. Could you tell me what role is the role of these braces?

The braces are meant to reduce if not eliminate vibrations on the y-axis causing micro layer shifts, this can be very noticeable on upper layers of tall prints. I can tell that it makes a difference after a few prints after installing the braces

I think you mean Z-Axis, right? The cabling system you have is awesome! Where did you locate the cable extensions?

(BTW. your work space is so neat and tidy... it makes me want to hang my head in shame! 8-D )

No, it's the y-axis, the bed moves along the y-axis and that's what's causing all the vibrations.

For the x cables, I made them myself, for the exz cable (the black ribbon type) I made my own extension cables using jst connectors between the stock cable and the board.

Not really that neat, my basement is a big mess actually :)

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