Re: [CAD_CAM_EDM_DRO] Taig CNC conversion

Hi John,

I like the channel (anodized aluminum?) used for the stepper mounts!
One of the slickest ways to do it I've seen. I'll keep it in mind,
perhaps I can scale it up to work on an RF-31 retrofit.

Alan KM6VV


stevenson_engineers wrote:

>
> Managed to get the steppers fitted to my CNC conversion.
> I've put three pics up on my web space.
> http://homepage.ntlworld.com/machines/taig1.jpg
> http://homepage.ntlworld.com/machines/taig2.jpg
> http://homepage.ntlworld.com/machines/taig3.jpg
>
> Taig1 is a shot of the X and Y axis. I went this way as I didn't like
> the direct coupling method. It looked very prone to damage and it
> also looks a lot like Prince Charles. This way if anything gets
> knocked it just spins on it's own centre and can't damage or bend
> anything.
> Looks a bit over kill but two HTD pullies and a belt were actually
> cheaper than an oldham coupling.
> I've kept the ratio at 1:1 and nothing on the machine has been
> modified at all. The square flange screws onto the original Taig
> thread and the box section bolts onto that. The timing pulley is
> bored 5/16", keywayed and secured with the original nut. The stepper
> motor is free to slide up and down with two keep plates behing to
> save messing with nuts in a confined space.
> Taig2 is a close up shot of the Y axis and taig3 is a shot of the
> parts for the Z axis before fitting.
> I need to put some 2" diameter knurled knobs on the extended shafts
> so the screws can be turned by hand. I also have to make three
> blanking plates for the top of the box sections to stop rubbish
> falling down. This should finished the drive section of the machine.
>
> John S.