Anybody know a good place to buy cheap motors at various sizes? Like servos and stuff?
this post was submitted on 03 Nov 2025
491 points (98.2% liked)
Technology
76581 readers
2513 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related news or articles.
- Be excellent to each other!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, this includes using AI responses and summaries. To ask if your bot can be added please contact a mod.
- Check for duplicates before posting, duplicates may be removed
- Accounts 7 days and younger will have their posts automatically removed.
Approved Bots
founded 2 years ago
MODERATORS
300-400kW continuously should be the headline. Thats impressive. Lots of motors can try and make 1000hp if you feed them enough voltage but only for a split second before they overheat and burn out. I wonder how long it can do this 1000HP.
The previous version is already in the Temerario. This is more of an evolution of an existing design.
We StRaPpEd MaGnEtS tO rEcLaIm EnErGy!!!w
Until someone tests it independently, this should be considered BS.
28 pounds = 12.7kg, for those wondering.
But, how much is that in baby elephants?
Roughly a tenth of a baby elephant, or around two round trips of your neurons on a single line reaching the moon
Bro got that galaxy brain. Average is about 1.4 kgs, or roughly .5% of a giraffe for you standard pedants.
The size is less of an issue than the power usage.
Does it also use 1000% more power to get that strength?
The only real benefit in that case would be robot mech suits.
Weight will help with efficiency. If you got to tow around less weight, you can go for longer.
The weight of the motor is insignificant compared to that of the batteries.
True
I'm assuming the efficiency is similar to other electric motors. Maybe not the best, but likely acceptable. If it's not, the product is DOA.
If my assumption holds true, it would allow for lighter cars and better packaging by making even more room for the battery near the bottom of the car since these engines are so small, you could easily just use one per driven wheel and forget about differentials and such. And hybrids that put the motor in a ZF 8HP transmission could have wayyyyy more power available from the electric bit, as space is sorta constrained there.
I think trains could also benefit from a weight loss IF these are durable enough. They have multiple motors usually.
Weight is important in vehicles not just because of energy efficiency, but because the more sprung mass you have, the more work the suspension needs to do. And unsprung mass is even worse, so ideally your motors are sprung mass. Currently weight is still a bit of an issue for EVs due to the batteries, but if they can make up for it a bit by having super light weight motors, the difference between EV weight and ICE weight becomes smaller. Weight is also super important to road wear, I think it is by 4th power. So 20% heavier means twice as much wear already.
cant wait for corporations to crush the competition with some bullshit yet again and then complain that we're at peak EV tech anyway
Everything but metric.
They're based in the UK, they have no excuse.
view more: next ›