curious what's the view on lowering stepper motor mount vibration, do you normally mount them against a plate via some sort of vibration cancelling material? I've seen cork 'gaskets' used for this and I even have some fancy rubber / cork / other 10mm thickness vibration mats at home which I could use, but I'd rather double check to see what's the standard solution. Of course there's the bolts as well, which will need fancy washers, or something similar?
Second thing is vibration against torque'd bolts, I'm using a mixture of M4 and M5, the M4s are torque'd to 3Nm (stainless into ali) and M5s will be 4Nm. With those torque values in mind, is there a risk of the bolts un-doing themselves under vibrations from the motor (Nema 34) ?
Over complicating the job.!!. . . . Just tighten the buggers up and they will be fine, never had one fall off yet.!!
No fancy washers needed Spring washers work fine.
I used to work with a fitter called Dick, when it came to nuts & bolts people used to say there's 3 kinds of tight, "There's tight, f***king tight and Dick tight", I'm assuming tight is enough ?.
I read somewhere about stepper motor mounts to reduce resonance similar to the rubber spider of some couplings but would it introduce backlash ?
It's worth remembering that stepper motors can conduct a significant amount of heat from the mounting face, so it's a good idea to bolt them to a reasonable size piece of aluminium. Clearly putting neoprene in between is not going to do the thermal conductivity much good, so the motors will run at a higher temperature.
Last edited by Jonathan; 21-10-2013 at 09:51 PM.
I simply thought this sort of vibration can effect how the machine works, but if it doesn't, I'm ok with it as adding any mats / gaskets would complicate the assembly anyway.
I'll go simples on this and use normal bolts / washers.
Obviously smaller motors
Stepper Motor NEMA 17 Cork Gasket 4-Pack - RepRap.me
Silicone Rubber might be a choice as it transfers and stands the heat, wife has some cheap baking trays made from it.
Thermal Interface Material - OSCO
Last edited by EddyCurrent; 22-10-2013 at 09:41 AM.
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