Messages

8231

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.

8232

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

8233

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.

8234

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.

8235

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

8236

General Mach Discussion / Re: need help step per unit

« on: May 08, 2009, 12:01:20 PM »

Hi elgammmmal,

Are you working in mm or inches here.

Tweakie.

8237

Show"N"Tell ( What you have made with your CNC machine.) / Re: Isolation Routing for PCB's.

« on: May 08, 2009, 11:33:22 AM »

Another small circuit board - this time it is a simple, two position driver for a bipolar stepper motor.

Tweakie.

8238

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

« on: May 08, 2009, 11:26:24 AM »

Brilliant work there Chris - I agree, you certainly are sharp. 

Tweakie.

8239

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

« on: May 08, 2009, 05:01:35 AM »

Thanx for the link - much appreciated.

Tweakie.

8240

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

« on: May 07, 2009, 03:11:35 AM »

Hi Dave,

At the moment I don't have a video camera (spent all my allowance on a Sony SLR and Minolta 70-210 'beercan') but just for you I will try to obtain a cheap webcam that will work with my laptop. Actually you are not missing much, with a feedrate of 20mm per minute It would probably be like watching paint dry. What would be far more interesting is a video of me photographing the laser in action as I tape one lens of the protective goggles to the camera lens filter (to give some degree of protection to my expensive image sensor) then shut one eye and look through the remaining goggle lens to take the shot. Glad no one can see me really 
It perhaps should be noted here that viewing a laser through any optical device is a bad idea for your eyesight.

Incidentally these solid state lasers cannot be turned on quickly as they require a 'soft start' in order to meet their expected life span. Therefore, in use, switching them on and off quickly requires a shutter system and I am currently working on this to solve the problem of unwanted burns when the axis is accelerating / decelerating from the start or finish of a line. First attempt at a rotary shutter was not too successful so I either have to improve on it or start again with a sliding shutter idea. I will add to this post when I have more information.

Tweakie.