1 Topic by aaronstalling

  • aaronstalling
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Topic: Help with Pillow Block positioning

Hello,

I finally received my bearing and I printed off the pillow block assembly. I plan on mounting the pillow block on the right hand side in a position that mirrors where the y-axis stepper motor connects to the y shaft.
When I mount the pillow block should I just remove all belt tension and drill the holes to mount it, or should I lift the shaft up a little bit to help offset the the strain the y-axis drive belt puts on the shaft?

Many Thanks.

2 Reply by wardjr

  • wardjr
  • wardjr
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Re: Help with Pillow Block positioning

If anything you are going to want to be closer to the motor or center.  The drive belt is what causes the rod to deflect so you want to offset that force. I run two pillow blocks one on each side about an inch in.

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SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
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3 Reply by aaronstalling

  • aaronstalling
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Re: Help with Pillow Block positioning

Thanks wadjr, I'll spend some time to get it to centre. But should is it best to lift the shaft up a little to when mounting the pillow block, or is just removing all of the belt tension from the shaft the best thing to do?

4 Reply by wardjr

  • wardjr
  • wardjr
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Re: Help with Pillow Block positioning

Just remove tension and try to get that rod spinning on center.  Otherwise you'll be deflecting the rod and adding resistance to the system.

Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions

wardjr's Website

5 Reply by aaronstalling

  • aaronstalling
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Re: Help with Pillow Block positioning

Thanks again. Can't wait to see how much better it will make my prints :-)

6 Reply by wardjr

  • wardjr
  • wardjr
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Re: Help with Pillow Block positioning

Circles will be greatly improved.

Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions

wardjr's Website