Greolt's Aussie build

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Re: Greolt's Aussie build

Postby Greolt » Fri Feb 03, 2012 12:43 am

quadmasta wrote:Got any pictures of the linkage?


It is fairly low tech. Cannot afford to have any looseness or wobble in the pivot point.

Lever.jpg
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Re: Greolt's Aussie build

Postby Greolt » Fri Feb 03, 2012 11:31 am

I have had a Homer Simpson DOH!!! moment. :oops:

Set up this red dot system, got it all going and adjusted, used for origin setup, all working great. I was very pleased that it was successfull.

So then I moved to integrate it into the machines on board power supplies. Up until then it had been running with a separate temporary independent power supply.

Hooked it up and.........what's going on........it won't work any more. :shock:

Then I remembered what I knew all along but had forgotten. The body of the red dot laser module must be insulated from the machine.

When using the separate power supply, all was OK. But as soon as I tied it into machine electrics....... :roll:

Went to all that trouble to make a mount with all necessary adjustments built in. Now I have to figure out a way to insulate it.

Greg
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Re: Greolt's Aussie build

Postby whmeade10 » Fri Feb 03, 2012 3:09 pm

Greolt wrote:I have had a Homer Simpson DOH!!! moment. :oops:

Set up this red dot system, got it all going and adjusted, used for origin setup, all working great. I was very pleased that it was successfull.

So then I moved to integrate it into the machines on board power supplies. Up until then it had been running with a separate temporary independent power supply.

Hooked it up and.........what's going on........it won't work any more. :shock:

Then I remembered what I knew all along but had forgotten. The body of the red dot laser module must be insulated from the machine.

When using the separate power supply, all was OK. But as soon as I tied it into machine electrics....... :roll:

Went to all that trouble to make a mount with all necessary adjustments built in. Now I have to figure out a way to insulate it.

Greg


I would bore the hole your red dot laser fits in just a little bit and use a piece of heat shrink tubing to insulate the red dot laser. I used heat shrink tubing on mine red dot laser when I made a jig for pre-aligning the mirrors before putting in the 40W tube. Just my .02. :D

Bill
FSE 45w Deluxe CO2 Laser 5th Gen w/X7 DSP | CorelDRAW X7
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Re: Greolt's Aussie build

Postby lovebugjunkie » Fri Feb 03, 2012 4:25 pm

My first thought was to bore out the pivot point a bit and cut a short length of plastic "pipe" with a plastic washer on each side of the pivot arm. Or maybe cut a new arm out of acrylic.
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Re: Greolt's Aussie build

Postby artwood_decor » Fri Feb 03, 2012 4:55 pm

How difficult would be to insulate the PCB of the laser off the aluminum body?
I remember in some of them there is a spring contact touching the body. In this case you can just use some kapton tape there and redo the wiring.
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Re: Greolt's Aussie build

Postby Greolt » Sun Feb 05, 2012 5:04 am

whmeade10 wrote:I would bore the hole your red dot laser fits in just a little bit and use a piece of heat shrink tubing to insulate the red dot laser.


The way the adjusting screws act with some force on the laser barrel, I think heatshrink would be insufficient.

So I turned up a sleeve out of some tough industrial type nylon I had, and bored out the mount a little.

Fitted it all up, realigned, and Bob's your Uncle Joseph. :D

Thanks to those who made suggestions,

Greolt

Sleeved.jpg
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Re: Greolt's Aussie build

Postby Greolt » Wed Feb 08, 2012 3:23 am

Been playing around with the Mach3 engraving plugin. Mixed results so far.

Here is an engraving on an offcut of cheap 3mm ply. 350 x 240mm

The artwork has the name Seyit on it. Sorry I can not acknowledge better than that.

Greolt

Leopard on Ply.jpg
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Re: Greolt's Aussie build

Postby Greolt » Wed Feb 08, 2012 3:28 am

Also some vector cutting with Mach3. Coloured acrylic.

Bicycle.jpg
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Re: Greolt's Aussie build

Postby jihgo » Tue Mar 13, 2012 11:33 pm

Hi Greg
Do you have a CAD drawing of the frame you welded up.
I was thinking of making something similar and it would be a good starting point.
Thanks for any assistance you can give.
JH
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Re: Greolt's Aussie build

Postby Greolt » Fri Apr 20, 2012 3:04 am

jihgo wrote:Hi Greg
Do you have a CAD drawing of the frame you welded up.
I was thinking of making something similar and it would be a good starting point.
Thanks for any assistance you can give.
JH


I am sorry JH. I did not see your post until now.

Originally I did a rough 3D model but is was only a concept type thing. ( See first post)

Not to scale or accurate. And only because I was on vacation and bored. :)

I tend to build/design machines mostly in my head.

Greolt
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