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Replicator Isolator Feet

by garyacrowellsr, published

Replicator Isolator Feet by garyacrowellsr Jan 13, 2013
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Summary

thecharacterg did a great rework of my Replicator foot, and I've only changed his work slightly here. I mainly published this to point out the use of the Sorbothane Isolators. I'll be the first to tell you that they are absurdly expensive for just a foot bumper. But the pads I used originally were highly compressed under the Replicator weight, and it actually looks like they are compressing more with age. Plus, the weight of my Replicator is increasing, with the XL mod, and new aluminum platform arms. The Sorbothane bumpers are perfectly sized for the weight of the Replicator+. When you get one of these in your hand, you'll see how different they are from a common foam pad or rubber bumper.

Instructions

The Sorbothane Isolators are available here: http://www.amazon.com/gp/product/B003IMJ3S2/ref=oh_details_o02_s02_i00

Note that this is for a quantity eight, so there are enough there for two Replicators (or whatever else you might want to isolate).

The .scad file and .stl have been changed to accommodate the 1.25" dia of the isolator. Pretty much just print, peel, and stick; then put the foot on your Replicator. I've noticed that the plywood thickness seems to vary a bit, so in case these don't grip the sides tight enough, I've added a couple of holes on the inside edge that could be used for some 3mm screws that should do the job.

If you think you can bridge the inset on the foot, go ahead and try (it wouldn't show later anyway), but I printed with support.

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These feet from McMaster-Carr look very similar - P/N 8215K6. You can buy them individually for $3.33 ea.

Good find! Those do indeed appear very similar, if not identical.

Printed a pair with +1 shell, 20% fill - fit perfectly snug on all corners and the vibration asorbers look good. Might need to print again with more shells or higher fill to make as strong as possible....but I thought I'd try with less plastic first to avoid the fit being too tight.

I just now noticed the cavity on the bottom. Did you print this with support enabled?

Also, I see there are holes for set-screws. Were those ultimately used when you installed the feet?

I did use support, but I didn't really like the results. Actually, there probably isn't a really good reason for the cavity other than is serves to center the isolator when sticking it on.
I don't use the screws on my current replicator, but it looks like the ply I received for the XL mod is thinner, so I might have to there.

Gotcha.

Hmm, I'm tempted to roll a fresh script, especially to try to address the asthetics of a 2.5" foot.

Very Nice! Collective sourcing rules!

Thank you for the script and link!

I'm going to try out investing in the 2.5" feet to see how they work. :)

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