Actuators, Motors & Drivetrains

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How do you even quantify 'feel' when comparing two actuators?

Last post by jhansen « Sun Aug 30, 2026 11:59 am
Replies: 42
by thomas65 » Fri Aug 28, 2026 2:17 pm
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Last post by jhansen
Sun Aug 30, 2026 11:59 am
Anyone compared noise levels across actuator types in a real room?

Last post by matthew43 « Sun Aug 30, 2026 11:59 am
Replies: 46
by samuel.adams » Tue Aug 25, 2026 5:53 am
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Last post by matthew43
Sun Aug 30, 2026 11:59 am
How much weight do wiring and connectors actually add per joint?

Last post by vyoung « Sun Aug 30, 2026 11:59 am
Replies: 22
by barbara.jones » Fri Aug 07, 2026 6:15 pm
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Last post by vyoung
Sun Aug 30, 2026 11:59 am
What's the deal with dual-motor redundancy in critical joints?

Last post by young56 « Sun Aug 30, 2026 11:59 am
Replies: 37
by young58 » Mon Aug 03, 2026 8:29 pm
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492 Views

Last post by young56
Sun Aug 30, 2026 11:59 am
Anyone tried 3D printed actuator housings for weight savings?

Last post by zoeanderson « Sun Aug 30, 2026 11:59 am
Replies: 27
by dubois35 » Sun Jul 12, 2026 9:45 pm
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Last post by zoeanderson
Sun Aug 30, 2026 11:59 am
How much does connector reliability actually contribute to field failures?

Last post by joseph31 « Sun Aug 30, 2026 11:59 am
Replies: 34
by young56 » Sat Jun 27, 2026 7:47 pm
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167 Views

Last post by joseph31
Sun Aug 30, 2026 11:59 am
What torque sensor accuracy is actually achievable at low cost?

Last post by kwilliams « Sun Aug 30, 2026 11:59 am
Replies: 26
by sarah.santos3 » Sat Jun 27, 2026 11:58 am
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273 Views

Last post by kwilliams
Sun Aug 30, 2026 11:59 am
Anyone building actuator test rigs at home for validation?

Last post by emily45 « Sun Aug 30, 2026 11:59 am
Replies: 33
by karen.chen3 » Sat Apr 25, 2026 8:14 am
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251 Views

Last post by emily45
Sun Aug 30, 2026 11:59 am
What's a reasonable service interval for a commercial-grade joint actuator?

Last post by nicole10 « Sun Aug 30, 2026 11:59 am
Replies: 43
by mohammed64 » Mon Mar 16, 2026 7:38 am
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Last post by nicole10
Sun Aug 30, 2026 11:59 am
Best budget BLDC motors for a home-built joint actuator?

Last post by nicole57 « Sun Aug 30, 2026 11:59 am
Replies: 27
by timothy.roberts2 » Sat Aug 29, 2026 9:23 pm
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Last post by nicole57
Sun Aug 30, 2026 11:59 am
Actuator sizing for a shoulder joint - where do you even start?

Last post by mohammed64 « Sun Aug 30, 2026 11:59 am
Replies: 25
by diego.moore6 » Sat Aug 29, 2026 6:14 am
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284 Views

Last post by mohammed64
Sun Aug 30, 2026 11:59 am
Encoder resolution requirements for smooth joint control

Last post by ivan22 « Sun Aug 30, 2026 11:59 am
Replies: 13
by amara.brown » Mon Aug 24, 2026 7:19 pm
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216 Views

Last post by ivan22
Sun Aug 30, 2026 11:59 am
Custom PCB motor drivers for small joint actuators - anyone done this?

Last post by karen.chen3 « Sun Aug 30, 2026 11:59 am
Replies: 15
by charlesbianchi » Fri Jul 24, 2026 10:06 pm
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204 Views

Last post by karen.chen3
Sun Aug 30, 2026 11:59 am
What failure modes should a maintenance tech watch for in QDD actuators?

Last post by olga_lind « Sun Aug 30, 2026 11:59 am
Replies: 24
by thomas65 » Sat Jul 11, 2026 6:21 pm
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24 Replies

474 Views

Last post by olga_lind
Sun Aug 30, 2026 11:59 am
What torque-to-weight ratio should a DIY builder realistically target?

Last post by freya.sokolov « Mon Aug 24, 2026 12:45 am
Replies: 21
by rao91 » Fri May 22, 2026 8:44 pm
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264 Views

Last post by freya.sokolov
Mon Aug 24, 2026 12:45 am
How do actuator vendors validate cycle life claims?

Last post by aliu « Sat Aug 22, 2026 10:37 pm
Replies: 13
by benjaminsanchez » Wed Aug 05, 2026 6:43 pm
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Last post by aliu
Sat Aug 22, 2026 10:37 pm
What's the real-world efficiency loss through a harmonic drive stage?

Last post by joseph_sing « Thu Aug 20, 2026 12:46 pm
Replies: 10
by karen.chen3 » Tue Aug 11, 2026 12:16 pm
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309 Views

Last post by joseph_sing
Thu Aug 20, 2026 12:46 pm
Thoughts on hybrid actuation - some joints geared, some direct drive, same limb

Last post by greta.carter « Mon Aug 17, 2026 11:00 pm
Replies: 10
by lperez » Fri Aug 07, 2026 9:35 am
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151 Views

Last post by greta.carter
Mon Aug 17, 2026 11:00 pm
Best resources for learning actuator design from scratch?

Last post by rivera14 « Mon Aug 17, 2026 9:20 pm
Replies: 13
by emily.walker2 » Mon Aug 03, 2026 10:07 am
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97 Views

Last post by rivera14
Mon Aug 17, 2026 9:20 pm
Actuator noise - is it mostly gear whine or bearing related?

Last post by brenda52 « Mon Aug 10, 2026 8:51 am
Replies: 22
by sarah.santos3 » Sat May 30, 2026 7:31 pm
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22 Replies

163 Views

Last post by brenda52
Mon Aug 10, 2026 8:51 am
Are we near diminishing returns on power density for these actuators?

Last post by barbara_liu « Mon Aug 10, 2026 2:57 am
Replies: 16
by nancy_lewi » Sat Jul 04, 2026 9:48 pm
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278 Views

Last post by barbara_liu
Mon Aug 10, 2026 2:57 am
Coreless vs iron-core motors for lightweight joints

Last post by amandawhite « Sat Aug 08, 2026 2:10 pm
Replies: 24
by benjaminsanchez » Sat May 09, 2026 2:41 pm
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363 Views

Last post by amandawhite
Sat Aug 08, 2026 2:10 pm
What's underrated: motor design or gearbox design, for overall performance?

Last post by rivera14 « Sat Aug 08, 2026 9:09 am
Replies: 23
by scott.andersson5 » Fri May 08, 2026 6:05 pm
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431 Views

Last post by rivera14
Sat Aug 08, 2026 9:09 am
Field-oriented control tuning for joint motors - tips for smoother torque?

Last post by garcia51 « Tue Aug 04, 2026 9:01 am
Replies: 19
by rivera14 » Fri Jun 26, 2026 7:31 pm
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289 Views

Last post by garcia51
Tue Aug 04, 2026 9:01 am
What's a good intro project for learning FOC motor control hands-on?

Last post by tariqlarsen « Tue Jul 21, 2026 8:26 am
Replies: 15
by ethan_fisc » Mon Jun 22, 2026 8:09 am
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15 Replies

172 Views

Last post by tariqlarsen
Tue Jul 21, 2026 8:26 am

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