Loading...
 

printrbot mods

A place for showing my PB modifications.

22'nd of Sept 2012 - A new video.


Started on the 15'th of May 2012.

Y axis limit switch poker.





Modified xl-belt pulley.


These are my modified pulleys. Note the repeating pattern in the teeth. This is the same pitch as the Z axis threaded rod and is caused by the a Z-shaft wobbling a bit as the threaded rods rotate.

Glass printbed


Depron bed insulator.


Printrbot screwdown.



xt60 power plug.


http://www.sparkfun.com/products/10474

Hot bed standoff and glass clamp.



Z axis micro switch jabber.



Fan adapter.




New carriage assembly.



Spool A-frame.


Wobble fixed.

I found the main cause of the wobble which has annoyed me for months.

The "wobble" turned out not to be a sideways movement at all but uneven lift was cause the layers to bulge every Z-motor revolution.
The Z-motors rock slightly on their flimsy mounts. The fact the hole aren't in the right place doesn't help.
The threaded rod and smooth rods aren't parallel causing the shaft coupling to flex every revolution.
Image
My temporary fix is 4 wedges glued in place.
Image
The results are pretty good.
printrbot

http://www.thingiverse.com/eddiema
eddie

Created by eddie. Last Modification: Sunday 23 of September, 2012 13:10:19 AEST by eddie.

Main Index

Switch Theme

Shoutbox

System Administrator, 13:56 AEST, Sun 07 of Aug, 2016: upgrading to tiki 15.2
eddie, 19:31 AEST, Sat 06 of Aug, 2016: This website is now served from Brisbane - in a Binarylane cloud.
System Administrator, 16:07 AEDT, Wed 06 of Mar, 2013: More f'n spam. No more anon posting from now on.
Anonymous, 18:44 AEDT, Mon 04 of Mar, 2013: deleted
Anonymous, 08:36 AEDT, Sun 03 of Mar, 2013: Very nice site!

Last-Visited Pages

Online Users

46 online users