Looking for a better X-axis motor!!! (Page 1 of 2)

That's kind of what I was hoping to figure out.  Mine is failing and although I use my printer a lot I would think there would be something out there that would last over a year.  So I would like to find something that is the same dimensions and has slightly more torque.  So far my searches for even the same thing have turned up empty.  That is unless I want to go to SD and wait forever for a $19 motor.  You have any recommendations?

Wish I knew the answer to that.  I'm guessing it doesn't appreciate the extra mass of the bulldogXL.  Either way I am going to have to replace it hopefully with a higher quality unit.

It started making an unusual noise intermittently last night. Then it started skipping steps so I thought stepper driver.  Adjusted VREF and made sure everything was running cool(fan on drivers and motor).  All was fine and I still had the same problem so I replaced the driver hoping that was it.  This all led me to the conclusion that it has to be the motor.  Of course I could be wrong and I usually am

Where could I find a double stack that has the same mounting dimensions?  As busy as my printer has been I am planning on ordering up spares anyway so I can try a few different motors.  I'll use them for something.

http://www.pololu.com/product/1209/

http://www.robotdigg.com/product/28/NEM … pper-motor

http://www.aliexpress.com/premium/nema1 … ext=nema14

The pololu one is exactly the same thing, just rebadged, so yeah I have experience with it. Its been on my SD for a year. Too bad they are out of stock for a couple of weeks.

I cannot say anything about Robotdigg motors. Everything else I have bought from Derek has been really good though. Mostly belts, bearings, pulleys, and electronics. But since I never bought the motor, I cannot honestly say.

People on reprap forums seem to favor getting stuff from aliexpress. I personally never have.

There are threads on here that list the specs and any other pertinent info... I don't have them bookmarked but a search should turn them up.

since you are ok with making the holes bigger just tap them out to a m4 or 5 and put in bigger screws... easy and cheap fix just make sure to keep the filings out of the inside of the stepper.

I was actually referring to the holes in the side of the case, I could comfortably enlarge those with my dremel.  I don't have a thread reamer, I guess I could get one and find some scrap metal to practice on before I take it to the motor.  I've never used one before but I guess I can figure it out and if I damage the motor them I'm still in the same spot I'm in now.

You should be able to find a cheap metric thread tap at the hardware store for a few bucks.  Just buy one for the next size bigger than the stripped hole.  Buy for bolts the new size and don't forget something to turn the new tap.  Aluminum is easy to tap if you take it slow.  You may need to drill the holes in the motor ever so slightly larger and maybe you won't.   Ask what drill size is used for the tap you bought.  The trick is (once you get it started) screw in only until it feels like it is going to stop and then back out about 1/2 turn.  Then go back in and repeat each time it will screw in slightly more until you have the new threads the depth you want.  The other option is go buy 4 self tapping machine screws the length you need that are slightly larger than the stripped holes in the motor.  This may mean that you don't end up with metric threads.  Bring your caliper to the store with you and buy several different sizes or bring you motor with you.  There is no reason to replace your motor just because the screws are stripped.  Other than the trip to the hardware store this shouldn't take more than a few minutes to fix.

http://www.pololu.com/product/1209/

It was out of stock when I ordered so I haven't received it yet.  They show in stock now though.

Doest it make any installation problems because of shaft? So can you recommend me this motor?