Messages

7551

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

« on: May 17, 2009, 01:35:15 AM »

Just curious Chris, but is Gertrude the name of your machine ?

Tweakie.

7552

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

« on: May 16, 2009, 04:07:29 AM »

Dave reminding me about the magnifying glass as a kid led me to think about an offset parabolic satellite dish on a polar mount with the dish actuator driven by a simple 2 photo diode sun tracking system – assuming the dish was steel it could be chrome plated and polished with a water cooled collimating lens fitted in place of the LNB. This collimating lens would feed into a gas cooled fiber optic cable that was led to the CNC Z axis and in turn a water cooled focusing lens. OK it is straight out of the James Bond film but it is not rocket science and may not be practical here in the UK because of the frequent cloud cover but for some of you guys in North America it could be a practical proposition. It would not produce megawatts of power but I bet it would be more than the 150 mW I am currently using.

What do you think, would it work ?.

Tweakie.

7553

Show"N"Tell ( What you have made with your CNC machine.) / Re: Some new toys for my Taig

« on: May 16, 2009, 04:05:54 AM »

That is just great Dave. You now have the smartest looking mill in the country. 

Tweakie.

7554

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

« on: May 15, 2009, 12:56:32 AM »

Hi Brett,

Transparent or clear materials are just not touched at all as these low power lasers favor the darker materials the best.
Now coloured acetate would probably work OK if it was thin enough, certainly the dark coloured Vinyls (sticky backed plastic) cut very well.

Tweakie.

7555

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

« on: May 14, 2009, 12:49:03 PM »

Another photo I thought you may be interested in seeing.

Tweakie.

7556

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

« on: May 14, 2009, 06:49:07 AM »

You certainly make some beautiful stuff Chris.

Tweakie.

7557

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

« on: May 13, 2009, 10:49:25 AM »

Now this is what I call cutting - I do have a fire extinguisher standing by.

Tweakie.

7558

Show"N"Tell ( What you have made with your CNC machine.) / Re: Turret Tool Post

« on: May 13, 2009, 10:46:24 AM »

Excellent work Ken.

Tweakie.

7559

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

« on: May 13, 2009, 10:08:17 AM »

Quite amazing - I wondered how you did it. Keep up the postings I am learning so much.

Tweakie.

7560

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.