Micro motor recommendation

Re: Micro motor recommendation

Don Evans

Just FYI - they sell pretty much anything you need to repair that unit.

For example you can replace the hold control board for $39.95, new brushes for 9.95 bearings for $12.50.

A new hand piece for $150.00.

You didn't say what is wrong with it, what is it doing wrong?

FYI - I have that same unit and the flex shaft unit also. I don't have much use on the micro pro unit yet but I like it and I would more than likely buy it again. All the other, supposedly better units are not cost affordable IMO.

Don

Re: Micro motor recommendation

George Balock

Don,

Thanks for the information. What happens is the green light on the controller comes on, but I get no reaction at the hand piece. How would I trouble shoot whether it is the hand piece or the controller? Prior to it dying, it ran for a few minutes, then stopped. I waited a bit and used it again for about ten seconds. Then it died.

Thanks,

George

Re: Micro motor recommendation

Don Evans

Do you have an ohm meter? If you know how to do a continuity test check the cord, it gets moved a lot at the connection points at the base and handpiece and it may be all that is wrong.

You can get a meter at most hardware stores for about $10 to $15 that will do the job and more.

That small investment and learning how to use it (it isn't hard) can save you a lot of money over the years.

The cord is the first thing to check, the one from the controller to the handpiece I am talking about.

What part of the country are you in, I'm in N.C.

Don

Re: Micro motor recommendation

Lloyd in Mississauga

Does the power unit have a reset button that may need to be reset? Maybe the unit is getting power to the switch, but the reset is popped so that power is not getting to the hand piece.

Re: Micro motor recommendation

George Balock

Don,

Yes I do have a multi meter. I will check the continuity on the hand piece. Do you know what the voltage output on the controller should be?

Re: Micro motor recommendation

Don Evans

The voltage will vary when u turn up the rpm knob.

But that may be difficult to measure because with the handpiece unplugged the controller will not have a load on it's output.

I'm pretty sure the controller outputs DC voltage.

My first quess as I said would be to check the cord with it unplugged but to do it well you would need to open the hand piece and check one of the two wires at a time (one at a time). When checking the cord you need to make sure your meter connections are solid and move the cord around, especially near the ends and see if you loss continuity.

My next quess would be the motor armature has carbon build up in the slots which will short them out when it gets loaded up with carbon from the brushes.

You would need to take the hand piece apart to clean the armature where the brushes ride on it and if the brushes are getting short they should be replaced also.

How many hours has it run? How long have you had it?

Wood Carvers may have a tech that can help also, maybe, give them a call.

Don

Re: Micro motor recommendation  *LINK*

Jeff Willaford

I used a Champion for a while and it failed. I took the cover off the control unit and saw a fried component on the control board and replaced it. My cost was about $1.30 at the time but soldering skills, minimal, were required.

Before I had time to do the troubleshooting I bought a Ram 45 Micromotor from Greg Dorrance (no affiliation... just a satisfied customer) and use it almost daily with the Champion as a reserve. They both use the same handpiece.

If there is someone near you with a Champion or a Ram 45 then you should be able to determine if it's the control or the handpiece.

There are other retailers of the Ram micromotor ... just google it if you decide to go that way.


https://www.gregdorrance.com/power-micro-motor-foot-control-p-70.html

Re: Micro motor recommendation

Bill Blasic

There are tons of (dental) micro motors on EBAY. 35000 to 50000 rpm at prices from around $70 to $150. I have had one for over 10 years that I use on occasion.