Messages

8531

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: May 13, 2009, 02:04:09 AM »

Do you ever get any sleep ?   

Tweakie.

8532

Show"N"Tell ( Your Machines) / Re: Laser cross hair tool position.

« on: May 12, 2009, 04:47:36 AM »

That sounds like the professional way to do it and would of course be far better.

Because Mach handles offsets so well and because these cross hair pointers are so cheap it was a simple approach to achieving the desired result. Having used this for some time now I certainly would not be without it but I agree, it could be improved upon.

Tweakie.

8533

Show"N"Tell ( Your Machines) / Re: New Build 6 axis CNC first timer

« on: May 12, 2009, 04:37:22 AM »

Thanks for going to all that trouble Chris.

Tweakie.

8534

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: May 12, 2009, 04:13:12 AM »

Hi Chris,

I use cheap (made in China) stepper controllers without any problem on small machines the only drawback is that most of them have 2.5 Amp max. rated drivers and would not be suitable for driving large steppers as would be required for a big machine. I think it would be a worthwhile project to convert the lathe if you have sufficient spare time and the lady boss approves.

Tweakie.

8535

Show"N"Tell ( Your Machines) / Re: New Build 6 axis CNC first timer

« on: May 12, 2009, 04:06:08 AM »

What made me curious is that from my experience stepper motors (unlike dc motors) do not draw any more current when they are stalled than when they are running (assuming that the driver is still sending current to the windings). Now I wonder how Roland detect the stall.

Tweakie.

8536

Show"N"Tell ( Your Machines) / Re: New Build 6 axis CNC first timer

« on: May 12, 2009, 03:04:53 AM »

I'm curious too. Just what is a torque 'dependant estop' and what would you use to trigger it ?

Tweakie.

8537

Show"N"Tell ( What you have made with your CNC machine.) / Re: My first attempts at laser engraving.

« on: May 11, 2009, 11:34:17 AM »

 
 

Tweakie

8538

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: May 11, 2009, 08:40:51 AM »

Excellent my friend. Superb work.

Tweakie.

8539

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: May 11, 2009, 06:44:58 AM »

Spotted the bubble Chris - I am sure you could blob a bit of wax in there and with your skills smooth it off again.

Tweakie.

8540

Show"N"Tell ( What you have made with your CNC machine.) / Re: My first attempts at laser engraving.

« on: May 09, 2009, 09:17:25 AM »

Why wait until you are big ?.

Tweakie