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Dual mode (rotating/linear) sanding power tool

Dual mode (rotating/linear) sanding power tool

Recently tried my hand at printing props and needed a power tool to reduce hand sanding to a minimum. I briefly considered a Dremel, but then opted to design my own powered by an RC motor + gearbox originally intended for a crawler, just for the challenge of it. It can serve either as a classic rotary sander with an ER-like collet for holding bits or as an alternating linear sander with sanding bits clamped on it's tool rod. The toolheads can be swapped by means of four M3 screws in less than a couple of minutes. Additionally, the powerplant is cooled by a self contained 12V 3010 axial fan to avoid cooking the electronics or melting the plastic housing.

submitted by /u/BamJr90
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Garage Cat Counter

Our indoor only cats like to go hang out in the garage. The garage has a small barn section with a couple of horse stalls that we're currently using for stuff storage, so there's lots of places for the cats to hide out there. Which makes it hard to know if any cats are around when it comes time to open up one of the overhead doors.

Time to make a cat counter for the garage door so we always know the current cat status.

Designed in Fusion 360, printed on a Bambu P1S.

https://reddit.com/link/1e1xa9i/video/5s8o17ttl6cd1/player

submitted by /u/jgremlin_
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Rebuilding a 35 year old steering column

Rebuilding a 35 year old steering column

I've been restoring an 88 full size bronco and it's a very common issue to have sloppy steering due to worn components in the column. The tilt columns in obs ford trucks is an extremely complex system of concentric shafts, tubes, and levers. There is a shift tube that floats between the column and steering shaft that I designed a bearing cup to support the steering shaft within the shifter tube and a bushing to seal and support the shifter in the column. I'm very pleased with the results and the tight feel it gives while sealing up the column from water and moisture ingress. To all those worried about modding my truck with 3d printed parts you can rest assured this is an improvement on the factory design and no way alters function. I printed with 95a tpu 5layer thick walls with 30percent triangle infill.

submitted by /u/HospitalKey4601
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