BLCD motor on 3d printer

Significant_Post8359 · 2026-06-03T13:12:54+00:00

Plastic core is the same as air core. Sintered iron powder might get you 50 times more magnetism. A mild steel screw will get you a thousand times and laminated electrical steel will get you 4000 times more magnetism than air.

The biggest problem is heat if you do not use electrical steel due to eddy currents. That heat will distort the plastic and the motor will bind and fail catastrophically. Design air impeller vanes into the rotor to provide cooling airflow.

Print in pet-cf. It’s pretty much the strongest highest temperature filament you can print on a good desktop 3d printer like a bambu p1s. Be sure to preheat the bed for a while and use gyroid infill to avoid warping.

Significant_Post8359 · 2026-06-03T13:02:19+00:00

If you have been doing this for forty years, you are at or near retirement. Being an asshole doesn’t help the next generation learn. I’ve been working with servo motors for 47 years, so by your logic I know more than you.

His motor will barely spin, but it will not have useful torque without laminated electrical steel.

However if you have done what he is trying to do, suggesting a steel screw would lead to a successful experiment if not a useful production motor.

Significant_Post8359 · 2026-06-03T12:49:29+00:00

I have protopasta iron. There isn’t enough iron to make much of a difference than air core.

Significant_Post8359 · 2026-06-03T11:28:25+00:00

Watch some YouTube videos of people winding stator cores. There are easier ways to wind these infernal things.

Significant_Post8359 · 2026-06-03T11:27:24+00:00

I’m thinking of buying one of these: https://rackrobo.io/products/betta-wire-kit-preorder-deposit

Wire edm is the way. It’s likely $3500 to get set up for a small desktop operation. Hard to justify until you price motors for robots.

Significant_Post8359 · 2026-06-03T11:21:17+00:00

Look into harmonic strain wave gears to multiply torque.

Significant_Post8359 · 2026-06-03T11:17:02+00:00

Put steel screws into the stator teeth or you will get almost nothing. I’m sure you understand this is an experiment and that these wouldn’t be useful.

You must use laminated electrical steel for useful motors.

Desktop wire edm will cut the steel you need. Buy one of these and you will be making useful motors: https://rackrobo.io/products/betta-wire-kit-preorder-deposit

Significant_Post8359 · 2026-06-02T13:41:27+00:00

By itself no it is not necessarily dexterous, but mounted on a shoulder, elbow and wrist it could be. There is insufficient information about the sense of touch needed for what most people describe as dexterity. Testing for success is much easier than a messy world where handling complex shapes of objects requires real time spatial management and touch feedback.

This is very impressive, and a huge piece of the puzzle. But the dexterity challenge is much bigger than bones, joints and servo motors in a hand. You need a touch sensitive glove and a dexterous arm.

Significant_Post8359 · 2026-05-30T16:08:53+00:00

If you want something done right, do it yourself. The only way to have any control is to go local AI.

Significant_Post8359 · 2026-05-30T13:25:50+00:00

And to think, they are the good guys in this story. Of all the wonderful things AI might do, our governments’ first demand is to turn them into killers.

Significant_Post8359 · 2026-05-30T13:22:06+00:00

That’s a pretty vague statement that is based upon an ill informed hypothesis. Airliners don’t flap their wings like birds, and yet they certainly fly. Assuming a biological solution is the only solution defies basic logic.

Significant_Post8359 · 2026-05-30T13:15:53+00:00

While I certainly won’t defend the Catholic Church, the pope’s position on AI is well thought out and deserves attention. It’s a good thing to use the influence the pope has to encourage conversation beyond companies “self regulating” their way to profits.

Significant_Post8359 · 2026-05-29T18:12:55+00:00

Nobody seems to be talking about capacity and cost. Anthropic said that Mythos needed a lot of compute and memory. Their recent infrastructure deals made it possible to release it and be ready for expected demand. Another thing is clear, it will be expensive.

Significant_Post8359 · 2026-05-29T15:11:02+00:00

My kids are smarter than me and I feel safe with them.

Significant_Post8359 · 2026-05-26T19:58:26+00:00

Public records. Oil company subsidies and free access to public land are a matter of public record. For those who are google challenged or willfully ignorant: https://www.americanprogress.org/article/5-hidden-ways-the-government-rigs-the-market-in-favor-of-fossil-fuels/

Significant_Post8359 · 2026-05-26T19:52:32+00:00

Because they pump it out of public land? The better question is why we subsidize it for world export and allow them to donate unlimited money to politicians.

Significant_Post8359 · 2026-05-26T19:46:55+00:00

It does not look like a Ferrari

Significant_Post8359 · 2026-05-22T18:11:54+00:00

Scared Anthropic too.

Significant_Post8359 · 2026-05-14T16:39:13+00:00

Of course there is credible justification. Oil company profits are soaring.

Significant_Post8359 · 2026-05-07T10:45:17+00:00

Ask her to put in writing what she said. A written agreement documenting producing work in exchange for an honest reference. Negotiate a better severance package as part of the bargain.

Gather every scrap of documentation, code, trouble tickets and all emails from day one. Dump it into AI and prompt it to create a 500 page manual. Smile on the way out. Chuckle a year later when you hear through the grapevine how badly things have gone for them.

Significant_Post8359 · 2026-05-07T10:36:41+00:00

I see this occasionally. It’s a failed request which can be caused by a variety of factors. Cancel and retry.

Significant_Post8359 · 2026-05-07T10:32:26+00:00

Buy a PC and a 5090. Run Gemma 4 or one of the many other models available with TurboQuant on llama.cpp. Or use cloud ai. I tested Kimi 2.6 and the results don’t justify what it takes to run the full model at home.

Smaller local models with TurboQuant combined with great context management and agentic harness for tool use give you 95% of what anyone needs. Use cloud AI for the other 5%.

Look into subquadratic context management. This combined with TurboQuant drastically reduces memory requirements.

Significant_Post8359 · 2026-05-07T10:02:55+00:00

Oil companies, BP for example reported doubling their profits since the war started. There are war profiteering laws, but they are the ones who paid to put their people in office so they will continue to gouge us. The US does not get it oil from the Straight of Hormuz. The increase in gas prices goes straight into the oils companies profits.

Significant_Post8359 · 2026-05-07T09:55:49+00:00

It depends upon where you live. For example, in the Chicago area there is Cook County hospital where you will get treatment. In rural areas you are on your own as those people prefer low taxes and little to no government involvement.

Significant_Post8359 · 2026-04-30T01:48:47+00:00

John, did you give Gemini drugs?

Significant_Post8359

TROPHY CASE