A friend at work had an old drawer with a broken runner wheel. The manufacturer no longer makes them. What a perfect situation for a 3D printer! I modeled the existing wheel in Autodesk's 123D Design using nothing but cylinders of various sizes, using the Combine/Merge and Combine/Subtract tools. I chamfered the edges of the wheel, but realized after printing the first prototype it wasn't enough, so added more and the second prototype looked good. I added the screw pocket on one side so when screwed to the bracket, the head will have some recessed room to hide in.

The wheel measures 28.2mm in diameter, with a 7mm hole in the center. The projection on the side is 5.26mm. I'm including the 123D file in case anyone else needs to modify this to suit their application.

Print Settings

Rafts:

No

Supports:

Resolution:

.2mm

Infill:

Notes:

Printed with Taulman 910 Alloy Nylon, so it should last forever

How I Designed This

Designed in 123D Design. Started with a cylinder the correct wheel dimensions, chamfered the sides, added another cylinder on one side for the extension. Used a 3rd 7mm cylinder to cut the screw hole through the center and a 4th 10mm cylinder to carve out the screw pocked on the opposite end.

Category: Replacement Parts