dc42 rollers

I'm currently building dc42's delta printer as described by his blog.
As such this question is aimed at him or anyone building/ built it.

I've finished the frame and spider assembly and have moved on to the rollers!

I know there a redesign of the original 1515 so was wondering what screws they take as it doesn't say anywhere specifically in the blog and can imagine since there larger than the 1515 will need bigger screws?

Thanks for your help
oliver

I'm using M3x30 screws, two washers and a nyloc nut as spacer between carrier and roller.
You also have to use a nyloc nut to fix the roller and carefully adjust the pressure.
Too much and the bearings lock, too low and you can tilt your carrier.
-Olaf

Edited 1 time(s). Last edit at 10/17/2015 01:53PM by o_lampe.

thanks!

Yes, M3x30 for attaching the rollers, and M3x35 for the one that adjusts the clamping force.

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Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].