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Printrbot Plus V1 Z bar stabilizers

by tdeagan, published

Printrbot Plus V1 Z bar stabilizers by tdeagan Jun 9, 2013
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Summary

I printed a couple other sets of these, but none would fit the pattern of screw holes on my V1 Printrbot Plus. The screws are not placed symmetrically, the 12mm shaft is not set evenly between them. This set fit my PB+ exactly. The OpenSCAD file is included.

I've added a diagram of the dimensions used for laying out the Z-Axis holes. (Which doesn't seem to show up above, here's the link: http://thingiverse-production.s3.amazonaws.com/assets/4d/d8/20/b6/4e/pb%2B_V1_Z_Holes.jpg )

I used calipers to check the dimensions on the PB+ directly.

I added a taper to the Z support shaft, I'm not very enamored with hard right angles for important support structures. That seems to be a common point of failure for my prints. Tapering or adding a fillet seems to make a big difference.

Instructions

I printed these at .75 infill, .25 layer height with a .35 nozzle. First layer was 150% of the standard layer height.

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Just made some stabilizers :D you got to give me some pointers man, yours looks so smooth and even, I have some uneven layers and my infill is not that great.

Also, do I have to do some clean up from the inside? my 12mm rods dont want to go in there and I am afraid to break the part.

I am also realizing that PLA is not that good for parts, or at least the one I bogut :(

I used PLA for the part in the picture and have been very happy with it, so it may be either the source or the config of your PLA that's giving you problems. The only time I think I've experienced 'crunchy' is when the parts are delaminating (coming apart,) otherwise the PLA typically feels very rigid. PLA, like other filaments, hates long term storage in humid environments. It absorbs humidity and can 'bubble' or 'froth' as it comes out. (http://brazenartifice.wordpress.com/2011/11/02/reprap-3d-printers-pla-and-moisture-problems/)http://brazenartifice.wordpres...

The rods might not fit if the inside of the shaft passage is uneven, so general tuning might make a big difference. Do you read http://printrbottalk.com?printrbottalk.com? That's the main source for good printrbot troubleshooting. Maybe you could start a thread in the troubleshooting forum there and post a picture, that would help me and others understand what might be giving you trouble.

Thank you, yes I have an account there, I am the same guy, FherraZ.

I did some adjustments, circles are better now and made the inner diameter a little bigger to compensate my nozzle (0.5mm)

Indeed I have delaminating problem, apparently I was cooling the PLA way too much, lets see how it comes out this time.

Hey there. Are the bolts size the same or will I need larger ones?

In the picture I can see the base is just a little thick so maybe I can use the bolts that came with the Printrbot?

I used some of the next size longer ones that came extra with my Printrbot.

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