Advice on motors for c-bot.
I wish to upgrade my Prusia I3. I am considering making the C-Bot core-xy printer. The BOM for this printer states the NEMA17 motors should be 68oz-in (48N-m) or better. Looking at Ebay I can find...
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I have also found these form Stepperonline: Nema 17 60Ncm(85oz.in) 0.64A Bipolar Stepper Motor 17HS24-0644S Manufacturer Part Number 17HS24-0644S Motor Type Bipolar Stepper Step Angle 1.8° Holding...
View ArticleRe: Did anyone used linear hall sensors on BLDCs for position sensing?
Quotemisan The third choice is a brushless motor from Nidec, the 12V one from 24H series [www.nidec.com] . Again eBay sellers have no info or idea about what they sell and my unit arrived rusted on...
View ArticleRe: Did anyone used linear hall sensors on BLDCs for position sensing?
It is funny you ask me, because I have been asking to Nidec about specs and pricing without much luck. They do have humans there, and I talked to a nice guy but the info just never gets through. I...
View ArticleRe: Advice on motors for c-bot.
RAMPS will struggle to drive all of those motors near to their maximum torque, because the plug-in drivers have far too little PCB area to keep the chips cool. The 17HS19-1684S1 motor is a very...
View ArticleRe: Help Finding Drive/Controller
You can generate the signals with an Arduino board if all you want to do is get it turning. Without knowing any other requirements no one can tell you what driver or power supply to use.
View ArticleRe: Advice on motors for c-bot.
Thanks dc42. That will be very helpful. I will try to contact the designer and ask the question.
View ArticleRe: Help Finding Drive/Controller
Can you provide a link to the datasheet for that motor?
View ArticleRe: Did anyone used linear hall sensors on BLDCs for position sensing?
Thanks misan, I've ordered a few off eBay just to try them out. Will hook them up to a lab supply and try to determine load characteristics (don't have any means of measuring torque though). Also shot...
View ArticleRe: Did anyone used linear hall sensors on BLDCs for position sensing?
Hi Tarjeik, It is my understanding that this model is used for a piston pump [es.aliexpress.com] . I assume the figure of 70mNm of maximum torque has to be close to these motors ability (but that is...
View ArticleRe: Help Finding Drive/Controller
[ftp.phytron.de] It's listed on here. If you scroll down to "Dimensions/Electrical and Mechanical Characteristics," it's the 100.200.10 version.
View ArticleRe: Help Finding Drive/Controller
The datasheet says the rated current is 10A and the resistance is 0.23 ohms, per phase. However, from other information on the datasheet, I think that assumes parallel connection. As you have the...
View ArticleRe: RUMBA/A4988s w/24V result in motors working erratically
Hey, Thanks for posting your updates. So, which driver would you recommend for RUMBA ? I only have the A4988 from my old ramps board and I would prefer to reuse them. I think i would need a new hot...
View ArticleRe: RUMBA/A4988s w/24V result in motors working erratically
Quotertrahms Before I checked this, I did check current limiting Vref on the A4988s, and they all read 0.8v - which (x2.5) equates to a 2A current limit on each. Seems okay, but let me know if you...
View ArticleRe: RUMBA/A4988s w/24V result in motors working erratically
how to set the stepper current ? should that be done on firmware or on the board with the stepper screws ?
View ArticleRe: RUMBA/A4988s w/24V result in motors working erratically
Like all current boards with plug-in drivers, RUMBA doesn't support software-settable stepper motor current, so you have to adjust the pots on the driver boards.
View ArticleRe: powerlolu ordering
Quoteyoyobob19 The existing Pololu boards found in common RepRap 3D printers are at their limits when driving the 2 Nema17 z-axis stepper motors in parallel. Continuous z-axis movement can cause the...
View ArticleRe: powerlolu ordering
Yep so i found this magically thing and i was like will this solves my problems but i cant find any to buy. So i was like well i might as well put my engineering school to use lol
View ArticleRe: powerlolu ordering
You can buy more powerfully stepper motor driver modules on eBay quite easily. But don't let that stop you making your own if you want the experience.
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