Thank you!
This fan was installed:
Does the voltage matter?
Thanks. This is the same fan I received with the unit. Looks like they haven’t changed the batch when building yours.
It’s 5V.
My fan is actually rated 24v, so it may be running at a lower RPM than specified.
@renwoxing Mind confirming these info?
For now I’ll keep using the fan (still would be good to have a recommendation for a different fan by @renwoxing, though), but while reinstalling it, I noticed that one thread was stripped.
Thankfully the fan itself is still sitting firmly, however it would but great to have the STL files available somewhere, as the plastic threads probably won’t last long.
2 Likes
Fan really necessary? Counters the silence of the device which is the superpower of it no? Someone hold a heat measuring gun there and running some fast scripts or set a weight that keeps it in acceptable temperatures. Whats the price of a 10cm motor and what can it lift?
No it’s not necessary for light usage. If you are not going to push the limit of these motor you may be able to just disconnect the fan and leave it.
I have complained about the same thing with them when I initially got the device. The reality is that you can fit a fan of the same dimension that does not make audible noise but still helps with circulation. So the problem isn’t about having a fan but which fan to use.
2 Likes
Really hope @Tempest will make one with this new motor but please a small fanless version also, even if small means expensive.
I
I’m going to be taking a look at robot joint motors this year. My goal for 2026, now that SSR1 and SSR2 are a reality is SSR6. I have some ideas but I haven’t settled on an architecture yet. The motors used on FunSR PRO make economic sense because they’re the best value for money but they’re way too big and powerful for a six axis device. The smaller motors are more expensive and I doubt anybody wants to spend $1,000 just on motors.
From the testing I’ve done having even just a gentle cooling fan makes a massive difference. Motors naturally create heat and having airflow makes it much easier to get rid of it, which prevents the machine overheating. So for a homebuild device I will always include a fan option from now on. There are quiet fans though.
5 Likes
A little bit of airflow makes a huge difference; I second everything you’ve said and want to add: The motor driver/power electronics are usually the more sensitive components when comparing the thermal masses behind them especially compared with bigger motors.
Looking forward to see what you cook up this year.
Thank you for your detailed test. It seems that this is an enhanced version of the OSR2+.
I changed the start up behaviour but I wanted to set it back so the default is the starting point again, is there a way to reset this setting?
Do whatever command you did to change that, but use DSP2 instead for middle.