Have made some new lightweight extruders for my DIY printer.
found some super cheap NEMA 14 steppers that I had to try.
What’s the ratio on the pulleys?
15/60
How cool
Wow belt drive, there’s something you don’t see every day…
That’s probably a good compromise. I think you’d want a little higher ratio if possible, but I bet 4:1 will work pretty well. A bigger pulley might not be a great idea.
Wow, that looks great!
I like your use of belt drive, should work really well in a metal design such as this.
I had some trouble over time with my belted extruder designs (hard to create tension on the belt without plastic giving/bending over time).
Try replacing the stepper with an even more light-weight one, like the pancake sanyo!
I like the belt driven feature
How much does this stepper weigh? Do you know the holding torque?
I’m curious how it compares to some other Nema14’s.
@Oystein_Krog It weighs 93 g.Holding torque is not listed but I guess it is about 0.05nm.
Ok, then this one should be quite a bit better:
http://www.omc-stepperonline.com/9deg-round-stepper-motor-065a-12ncm17ozin-14hr080654s-p-87.html
And there is an even smaller one:
http://www.omc-stepperonline.com/9deg-thin-stepper-motor-125mm-05a-7ncm10ozin-14hr050504s-p-88.html
Have seen them .They I have is almost free, $ 4 each and free shipping
Yeah, they are tempting me right now:P
Do you actually print faster as a result? Yes the weight is less, but can it put out the filament fast enough to make that a usable advantage?
Most importantly the lower mass will increase quality by reducing ringing etc.
Nice
That is so cool