Re: Gecko burned - fixed for now

Les,

I am very interested in your experience. Those motors are so
inexpensive, I hope they have the torque etc. I have a motor meant
for treadmills that I got from them and used on my drill press. I
am not sure which one it is and how it compares. It uses a DC
controller but it really bogs down under load.

Good Luck!

Keith

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Les Newell <lesnewell@f...>
wrote:

> Hi Keith,
>
> I will be using treadmill motors from surpluscenter.com, item

number

> . Carriage to the UK cost more than the motors but they are still
> lots cheaper than anything I can get in this country. Surplus

center

> were very helpful.
>
> The motors are designed to be foot mounted but they have a nice

big

> flange on them that can be drilled with the same bolt holes as the
> current motors. They are smooth to turn by hand with only a little
> 'cogging' and will run down to about 1.5V.
>
> I intend to use 200CPR encoders(giving 800 steps/rev) and I will
> probably gear them down 4:1, giving a resolution of 16000

steps/inch.

> The Z axis will probably stay 1:1 because I don't fancy trying to

change

> the belt :-)
>
> I will go with Rutex drives, not because I have anything against

the

> Gecko drives but because I have future plans that will make use of

the

> SPI facility.
>
> I will let you know how I get on...
>
> Les
>
>
> Keith Clark wrote:
>
> >
> > Les, I am afraid I may be in the same boat. I hope at least

that

> > the GEcko might be repairable with the fuse there.
> >
> > Have you made a choice as to servo motors yet? As I remember,

you

> > have a Bridgeport too?
> >
> > Thanks,
> >
> > Keith
> >
> >