P3steel 2.x - Z-axis top bearing
by toolson, published
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Summary
This is a top bearing mount for P3steel 2.x Z-axis.
Designed for use with M5 threaded rods and 625 ZZ bearing
This top bearings prevent Z-axis threaded rods from vibrating while printing with high jerks and accelerations.
Stepper/rods coupler aren't made for taking loads. They compress and uncompress when they want to. This parts take the load from the coupler. Having a huge affect on print quality and layer thickness precision.
Lock the threaded rods with Nyloc Nut DIN 985 as shown in the picture. Adjust the nuts that there is a little pretension on Z-coupler.
It's the next part of a complete series for P3steel parts. I redesigned every part based on my long time experience with the P3 steel.
Picture shows v1.
Updates:
12.12.2015 - improved v2 with removable support structure now available
Please share your makes!
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Hey, i really like the parts you made, i started to print this one.
But.... when finished i tried to insert the bearing.. the hole was too small.
I measured it and it was 15.64 printed on a ultimaker 2, a buddy of me also printed this ( prusa i3 )and he got 15.69.
Any thoughts on this ?
Printed at the correct size for me. It sounds like you have a calibration problem.
Did you manage to get it sorted?
The solution is really simple:
both printers aren't well calibrated or slicer settings are not correct!
Yeah that would makes sense, however when i print other things they have the same size as the drawing..
Also i don't think there is a way to calibrate a UM2..
I checked the stl again. The hole is exactly 16,00 mm.
You're doing something wrong.
Ok, thank you for checking.. very strange..
Will do some tests tomorrow
If you don't have a knob on hand, you could also print this knurled knob https://www.thingiverse.com/thing:1551820 which gmelenka published here recently.
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