608 Bearing Idler - Adafruit Heatset Insert Press by wcarver1

Last crawled date: 3 years, 4 months ago

Three modifications I made to Adafruit's excellent heatset insert press:

Top roller modified to use a 608 bearing. This requires some very careful printing as the clearances are tight. there is a 2mm circular channel for the string/monofilament to run in. I did the 608 Pulley on a resin printer to get a better surface and tighter tolerances. You must also flip the direction of engagement for the fasteners used to hold the 608 Top Idler to the idler-coupler (inserts now are set into the Top Idler and fasteners go through the idler-coupler, into the 608 Top Idler; see photo).


Tri-Plate modified to use cap screws (SHCS) instead of flat head countersunk

Modified the counterweight to accept standard US quarters. Humorously enough, the weight of the quarters required is enough to buy the necessary mass of bearings
I have also included a v-slot wheel for 625ZZ bearings in the spirit of complete disclosure, as that is what is shown in the attached images. I attempted to print these on my resin printer at 20µm layer height. They were functional to some extent, however a machined component will provide a much (much) better experience.
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