Also use the motor calculator at reprapfirmware.org to check that you will get enough speed.
Hi, I tried to put the specifications of the NEMA super whopper of e3d, I only have a doubt on the datasheet is written rated current 4V and 2A / phase, in the calculator rated current I have to write 2000 or 4000? Forgive me I'm not very practical in electronics
If you can get the same/similar toque out of long nema17s as shorter nema23s, with all else being equal go for the nema17s because they normally have a lower rota inertia, at least in the sizes we are talking about.
thank you so much I understand, I think then I'll try 17
I have no experience of deltas larger than 350mmx1m.
However if you are getting skipped steps and using large nozzles and want thrust to push through blobs etc.. Then I would say the large nema 17 might be a better choice, the nema 23 is more prone to midband resonance which can cause problems.
But my understanding is rapid direction changes are not able to be as rapid with larger motors.
What sort of rod ends are you using, magnetic might be trouble if your hitting fairly hard objects during printing.
nema 23 are faster in the changes of movement?
no, do not use the system with magnets, in fact it would be too weak for my problems.
Check out this documentation page:
https://duet3d.dozuki.com/Wiki/Choosing_and_connecting_stepper_motors
As DjD says for a "normal" to "large" delta you should be ok with smaller motors as the point of a delta is very low moving mass.
I read this part of the guide very carefully, I was just looking for confirmation from you with more experience than me, and if these two Nema were correct for the required specifications
Hi Edo, how big is your delta? You might not need such massive motors…
How big is your printer?
my delta printer is 2,5m high with a heated bed of 80cm in diameter
IMHO These are perfectly adequate for a fair size delta
https://www.omc-stepperonline.com/hybrid-stepper-motor/nema-17-bipolar-59ncm-84ozin-2a-42x48mm-4wires-w-1m-cable-and-connector-17hs19-2004s1.html for 1.8 degree motors (the 1684 are also good)
I am currently using wantai nema 17 with 47Ncm, they are powerful but if I use very large nozzles example 1.0 - 1.2 every bubble or imperfection in the print is like having a mountain as an obstacle and my Nema lose steps
hello everyone I would like an help to choosing the right nema to buy for my delta printer,
My choose is between:
-nema 17 super whopper from e3d;
https://e3d-online.com/super-whopper-motor-1
-nema 23 from omc;
No you switch the jumper on the 3 pin VFAN block, to 5v, instead of Vin.
ok, I think I understand, in the coming days I try to connect and test everything, thank you very much
Yes if you wire your always-on fans directly to VIN (assuming it is 12V) instead of to the always-on fan connectors.
thank you so much I did not really think to connect the fan 12v always on at VIN as on the ramps hehe
thanks, it seems to me the best solution.
So to enable the 5v I just remove the two jumpers?
Hi everyone, I have a couple of questions:
can I use 12v for fans that are always on and 5v for fan0-1-2?
or removing the jumpers all the fans work 5v?
I have to mount 1 fan 30x30 for v6 (12v) and 2 fans 30x30 (5v) to cool the printed part.
could it work by putting the two 5v fans in series always in 12v by lowering the max PWM?
thanks for the answer, then I prefer to put a mosfet, do you know if this mosfet is okay or do I need something else?