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Line length control washer - solidoodle

by muddtt, published

Line length control washer - solidoodle by muddtt Nov 13, 2013
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Summary

UPDATED V1 was to flexible. V2 is a lot stiffer, has a lower profile, and will just work better. Just tie to one of the anchors and wrap as necessary.


Was using spectra fishing line to replace toothed belts. Was kind of a pain trying to get the line length tied just right. These will allow some slack that can be taken up easily without having to re-tie everytime.

This video demonstrates the spectra fishing line in action. The washer would be used at one end of each of the lines. It's not used in this video, but if I need to adjust the line length again I'll put them in.
http://youtu.be/Ec21xR3YqW0

Original write up for belt replacement:
http://www.soliforum.com/topic/4073/beltless-drive-xy-axis-level-2-techie/

Instructions

As in the first photo, use the knot of your choice to tie around one anchor. then wrap the line around the T's as necessary. Probably a good idea to ream it through with a drill bit to make sure it spins freely on the screw.

*The screw size is M3 socket head screw.

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Hey! Where did you find these pulleys? Are they specific for the lines or some sort of adaptation.
I like very much this design. KISS principle!

The geared pulleys were just what was there from the geared belt previously. The belts were just removed from the Solidoodle printer and that's what was there.

I didn't tried that... I thought it slips or generate some problem on print surface due the T2 teeth...

Nope, wrapping it around 5 or so times on the pulley keeps it really tight.

It's been on my machine for about a year now. No signs of wear. It's not actually rubbing against any point. The fishing line goes around pulleys so there's no sawing action.

from past experiences with all braided fishing lines. they will eat through any material faster than a hacksaw. yes that abrasive!

I havent installed it in my system yet. I created it in case i need to redo my lines for the x-y axis. It shouldnt have a problem with tangeling because when its installed the line has tension on it. In its intended application there should never be enough slack for it to get tangeled. See video for application.

Have you ever had any problems with the wire tangling?
(Why/How does it stay untangled?)

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