Ball bearing toy
thingiverse
I put together a simple ball maze using basic elements and created one continuous loop for a 12mm steel ball. It would be challenging to print it with FDM, but printing with SLS could make the process smoother by allowing me to click in the ball afterwards. I added an extended version designed specifically for SLS printing with a 12mm ball. This is actually an updated version of something I made previously and printed successfully with grey PLA on my FDM printer. Since I don't own a dual extruder printer, I ordered a white part from Reputech (https://www.3dhubs.com/service/reputech), which did an excellent job removing the solvable support material.
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