So when the Massdrop guys first showed up and got together with the mods of this community, I was very hesitant about what they might actually be able to offer. In fact, anyone who saw the conversation would say I was downright hostile.
Turns out, they can offer some pretty good prices on stuff some of us need. I’m a little ‘eh’ that it’s a 4 pack, with no option for a 5-pack but at $10 ea and $5 shipping (USA) that’s not a bad price. And the motors (according to the specs) pack a punch. 59Ncm/http://6kg.cm/83oz.in and rated for 2A https://www.massdrop.com/buy/nema17-motor-planetary-gearbox
I’d probably be more keen to use the DRV8825-based drivers rather than the A4988 that pololu offers. – http://www.pololu.com/product/2133 They’re rated for 2.2A and have 1/32 microstepping.
I’ve been running 2.5A rated steppers with normal A4988 drivers and they’ve always supplied me with more than enough torque. Granted, i have heatsinks and a fan on the drivers and they’re probably not supplying the full amperage, but in my opinion, having a little headroom on the motors is better than running them at temperatures that might melt your plastic parts or require a fan on the motor.
It’s a shame it’s not a 5 pack, but since I have 4 spare drivers after upgrading I couldn’t resist, I’m now building a second printer probably one of the newer mostly printable designs.
@Liam_Jackson it’s perfect for a not-mendel-based design. Tantillus, Ingentis, Ultimaker, etc all don’t require the dual-z motors so there are lots of other full fledged printers you can build.
probably one of the newer mostly printable designs.