RC Yacht Pulley (3mmID ,6mmOD)

by naptalene, published

RC Yacht Pulley (3mmID ,6mmOD) by naptalene Oct 13, 2017

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567Views 134Downloads Found in R/C Vehicles


A small pulley for rc yachts based around a Boca bearing.
I don't have the product number for the bearing as I bought it from our local RC helicopter shop. Using my calipers I get in ID of 3mm and OD of 6mm.

Print Settings


Flex Mendel / OSC Flex










Designed for my 0.4mm nozzle 0.2mm layer height.

Single STL bits and a file I exported from Slic3r Prusa as a single file that opens up flat on the build plate.
Fusion360 solid bodies in case you want to tweak it. Shout if there's a different format that you need (as long as Fusion supports it)

I printed quite slowly, with a very cold extrusion temp in PLA. I did 4 of them per print to allow the parts to cool to avoid the detailed bits getting mushed around.


By design, pieces need to be gently tapped together with a hammer to keep things snug. This de-burrs them and creates a tight clip when doing the final assembly.

There is a small gap between the post that centres the bearing on the Spacer and Base to allow for any z calibration issues.

I used a drop of CA to hold the spacer/ base together - be careful not to get any on the wheel/bearing sections.

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