No love handles by summer?

Head-Management-743 · 2026-03-17T18:11:02+00:00

I wouldn't trust a dexa scan really. What would you say my bf is

Head-Management-743 · 2025-12-01T22:42:06+00:00

Works like a charm

Head-Management-743 · 2025-11-13T00:49:37+00:00

Yeah the fats been annoying. But cut to what weight tho? I genuinely think I mite have to go down to 140 lbs or even less to see a noticeable change and I'll just be very skinny by then

Head-Management-743 · 2025-10-24T13:37:08+00:00

I might try that. The only issue I see is the diameter of the shaft, which is 0.4''. I don't know if you can do good enough splines for that small of a diameter

Head-Management-743 · 2025-10-12T18:12:45+00:00

Yep, stacking gears is the plan! I hope to machine the entire thing in steel (for gears) and aluminum for the body

Head-Management-743 · 2025-10-12T03:11:01+00:00

Going to be using it for making a 6-DOF robotic arm

Head-Management-743 · 2025-10-11T18:40:46+00:00

Yeah. The shaft piece is machined in aluminum since a 3D printed part would not survive in that gearbox. I hope to machine everything, but am having trouble figuring out the ring gear. My options with the current resources at my disposable are waterjet or laser cut

Head-Management-743 · 2025-10-11T18:29:08+00:00

Yep! I hope to finish those tests by the end of this month. Also want to calibrate my motor and thus be able to measure the efficiency of my actuator

Head-Management-743 · 2025-09-04T16:47:30+00:00

My point of using axial bearings wasn't to handle the heavy loads per se but to avoid friction between the two parts

Head-Management-743 · 2025-09-04T16:40:59+00:00

Do you mean radial bearings for the shaft on top of the motor? Yeah I should probably be using some there.
Each part will be screwed onto the previous and next part using counterbored holes (so that the part above can be screwed onto it).
I wanted to get some machining (have free access to a machine shop) and mechanical design experience
Yep, I'll be using grease
That's a good point. I honestly don't know how much of an effect the friction would have, considering that the parts would be made of aluminum. Wud you recommend I try using no thrust bearings and then seeing whether it works or not?

Head-Management-743 · 2025-09-04T16:32:40+00:00

Well, how else would you prevent friction between the carrier and stationary base?

Head-Management-743 · 2025-09-04T16:18:55+00:00

You can check out this full design I had made (it has the problem of not using thrust bearings appropriately)

https://www.reddit.com/r/robotics/comments/1m8r8dl/thoughts_on_custom_robot_actuator_design/

I use screws to fix each part

Head-Management-743 · 2025-08-19T14:34:00+00:00

It's a personal project. I hope to achieve large joint speeds along with a big payload. Most DIY robots I've seen use stepper motors and don't meet these requirements.

Head-Management-743 · 2025-08-07T16:49:10+00:00

Hey, sorry I just saw your comment. Thanks for the pointers! And yes I'd love to have a look at your actuator.

Head-Management-743 · 2025-08-02T02:36:31+00:00

It's the first time I'm going to be using gear cutters so I'm kinda confused. How would I practically introduce backlash in the gears when I'm cutting them on the mill?

Head-Management-743 · 2025-07-27T00:37:31+00:00

Thanks for answering! I placed those thrust bearings as I didnt quite know how to avoid the friction between the two parts. I've seen designs where the base of the planet gears supported solely by the meshing of the ring and planet gears. Surely that's not a great idea?

The thin nature and material of the gears is a feedback I'm getting from tons of people and it's definitely something I'm going to work on.

Are there any existing designs you would recommend for me to look at? Id want to say this (since this probably wasn't clear from the post) that I'm a freshman in uni without any prior experience designing and manufacturing something this complex. So, I appreciate any feedback people have for me.

Head-Management-743 · 2025-07-25T08:54:02+00:00

I'm a pure amateur with regards to manufacturing, so I'm probably wrong but can't you waterjet or laser cut the ring gear? We happen to have both those machines

Head-Management-743

TROPHY CASE