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Searching for high-torque servos in the smallest available form-factor


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#1 Hythos

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Posted 27 September 2012 - 11:01 AM

Hi guys -
While I've been utilizing HiTech TG's with Maraging 300 gears in place of some of the Titanium gearing, I'm needing to make a decision on purchasing servos with significantly higher torque.

I've been testing an off-the-shelf Seiko PS-50 (no modifications), and it's still a bit light-weight for my application.
Seiko does have a 5,000 oz-in model (PS-105) - which is getting closer, and I might be able to over-voltage this by 50% and push an additional 30% (~6,500 oz-in).

While smaller is better, the PS-50 size (~100mm x 44mm x ~100mm), I can manage the actual envelope size by redesigning the case, if necessary.

Ultimately, I'd need to push upwards of 12,000 oz-in of torque (& 2,000+ holding) and still preserve +-45deg of motion within .5 seconds (full 90deg in under 1 sec is necessary).
I've seen a few things out there, but short of designing my own - I thought I'd ask if anyone knows of something more capable.

#2 Urban UK

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Posted 28 September 2012 - 10:53 AM

Some really odd post just lately almost seem like bots ;)

Might be worth asking something like this @ simhq or maybe a racing sim website

#3 Hythos

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Posted 29 September 2012 - 11:43 AM

View PostUrban UK, on 28 September 2012 - 10:53 AM, said:

Some really odd post just lately almost seem like bots :P

Might be worth asking something like this @ simhq or maybe a racing sim website


haha Nope, not a bot :P But thanks for checking Urban! Figured I'd ask *just in case* :D

#4 CyBerkut

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Posted 30 September 2012 - 08:40 AM

Actually, http://www.thewayiplay.com might be a good place to ask, or to look for links to other applicable sites. Mostly racing sim pit builders on that site.

#5 Loc Nar

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Posted 30 September 2012 - 09:06 AM

Yaskawa makes the most compact/powerful servo systems (3ph AC)) that I know of. Typically, their motors are 1/3 the size of equivalent motors from other brands. If you have budget constraints, forget about buying them new, but on ebay you can get them for pennies n the dollar...

#6 Lightdragon

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Posted 01 October 2012 - 03:16 AM

someone wanna explain in english what the application is?

#7 The Basilisk

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Posted 01 October 2012 - 03:46 AM

Most likely he's building a model Mech or something like this.
If thats the case don't try a 2 legged one with normal servos. The realy strong ones will be to slow regarding reaktion time and buying strong high precision servos won't be cheap.

#8 Iamwetoddit

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Posted 06 October 2012 - 06:55 AM

Hobbyking.com





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