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Thread: Extruder Upgrade assemblies ??
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10-22-2015, 12:04 PM #11
?????? Now I'm really Confused ????? LOL
I think some printers are wired to match the way his motors are made,
but our printer is wired for a different motor wiring design.
(Even though they are All Nema-17 motors)
And how to determine where to get the Design to match our printer's wiring, is the Big question now ???Last edited by EagleSeven; 10-22-2015 at 12:15 PM.
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10-24-2015, 10:15 AM #12
Well the sellers of this extruder kit, who are in the UK,
called : 'We Do 3D Printing',
have not been much help in resolving the problem with their stepper-motors.
Only said they think problem is with the connector wiring being different
and no more replies about helping with a solution, refund or replacements.
Needless to say I'm very Disappointed in this purchase !
I just hope they find the problem before selling these useless motors to anyone else.
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10-26-2015, 12:57 PM #13
I got a message from Seller and he said that it's the center 2 wires that are reversed, inside stepper-motors,
( AXBAXB instead of AXABXB like ours )
He found that his motors will Not work in Many printer makes, CTC, Wanhao, FF, etc.
But will work in other makes, like the RepRap.
I think I'll take one apart and see if it can be changed internally.
Since they are Useless the way they are now, for our printer.
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10-26-2015, 01:04 PM #14
- Join Date
- Jun 2014
- Location
- Burnley, UK
- Posts
- 1,662
That is really odd. Must be a faulty batch, it has to be. No one would make them like that deliberately.
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10-26-2015, 01:14 PM #15
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10-27-2015, 10:07 AM #16
- Join Date
- Aug 2015
- Location
- Liverpool UK
- Posts
- 5
Stupid question time.
You did make sure you bought 24v and not 12v.
I have bought lots of stuff for my CTC 3dprinter from We Do 3D Printing with no problems at all. I haven't changed the stepper motors on my printer as the originals worked fine, but I did change the extruder to the ones like in your picture and it made a big improvement over the factory fitted ones.
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10-27-2015, 11:02 AM #17
Well, the way I understand it is that stepper-motors are Not rated at a fixed voltage,
like 12 or 24 volts,
but are rated at a voltage Range, like 3 to 25v or 5 to 30v, etc.
and usually only the minimum voltage rating info is given , like 3 or 5 volts.
So they should operate on a higher or lower voltage, as long as it's in that Range of voltages.
I've not tried their extruders yet, since the old ones are working great now,
but I plan to soon.
Thanks for the Info,
Note: I have verified that seller is correct about there being 2 versions of connector wiring in Nema-17 motorsLast edited by EagleSeven; 10-27-2015 at 11:26 AM.
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10-27-2015, 01:22 PM #18
- Join Date
- Aug 2015
- Location
- Liverpool UK
- Posts
- 5
I did say "Stupid Question Time" as i don't know much about these things at all. I just know that the CTC printer uses 24v for things wheras some of the others use 12v. Luckily I have not had to change any motors in mine yet I'll have that fun at sometime I suppose though.
I did try to completely rebuild the hot end and extruders with parts from DealExtreme (very cheap chinese same as the printer ) but the distance between the screw holes on the carriage and the metal block were different on the one I bought as it seems the dimentions are not quite the same as the makerbot or flashforge. So i plan on printing a new carriage at some point.
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11-05-2015, 12:32 PM #19
I got one of the stepper-motors to operate normally by reversing the 2 center pin connections,
inside the motor.
After removing motor's back cover, I cut the 2 center etch lines on the PC board.
(Don't loose the bearing spring-washer)
I then soldered in 2 small insulated wires between etch and connector pins,
in a X shape.
I have 2 more motors that I plan to do that to,
when my eyes and nerves have recovered from doing this one ! LOL
Note: To do this you need a very small-tipped soldering-iron and a Magnifier-hood
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11-06-2015, 03:12 PM #20
I now have both these extruders installed in our CTC and they are working Great !
and since I now know how to fix the reversed stepper motors 'I'm All Happy Again' !
Holes and pockmarks in print walls
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