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Author Topic: Diy Laser cutter MK1  (Read 14566 times)

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Offline Tweakie.CNC

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Re: Diy Laser cutter MK1
« Reply #10 on: April 13, 2011, 04:59:30 AM »
Get it all bolted down then lets see some pics of the stuff you make, please.

Quote
How do ya fancy building one of these ? I have dug out some rough dxfs for it.

One of what ?  (no picture file attached)

Tweakie.
PEACE
Re: Diy Laser cutter MK1
« Reply #11 on: April 13, 2011, 06:16:34 AM »
 ::)
smaller file this time.
The Brain: Pinky, are you pondering what I'm pondering?
Pinky: I think so, Brain, but this time, you put the trousers on the chimp.

Offline Tweakie.CNC

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Re: Diy Laser cutter MK1
« Reply #12 on: April 13, 2011, 07:08:06 AM »
I think I will wait for you to kit it.

The Replikit laser cut kit for the Snipe sells for £39.95 plus p&p.

Tweakie.
PEACE
Re: Diy Laser cutter MK1
« Reply #13 on: April 13, 2011, 08:09:26 AM »
Don't think I'll be kitting that one soon, but saying that if you wanted one cutting out you'll have to let me know.
I bought an old plan of a 60' DH 2 beaver a while back. that'll be the first one i make for myself.
Or maybe a double size ladybird.

Not gonna get anywhere near your results, too many errors in the building. but you only learn by making mistakes, or reading about other peoples.
Would like it to do some engraving but i'll get it stable and cutting first.

BB
The Brain: Pinky, are you pondering what I'm pondering?
Pinky: I think so, Brain, but this time, you put the trousers on the chimp.
Re: Diy Laser cutter MK1
« Reply #14 on: May 12, 2011, 04:21:18 PM »
« Last Edit: May 12, 2011, 04:23:24 PM by balsa burner »
The Brain: Pinky, are you pondering what I'm pondering?
Pinky: I think so, Brain, but this time, you put the trousers on the chimp.
Re: Diy Laser cutter MK1
« Reply #15 on: May 12, 2011, 05:10:08 PM »
ROCK N ROLL !!  Looks great !

JH

Offline Tweakie.CNC

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Re: Diy Laser cutter MK1
« Reply #16 on: May 13, 2011, 01:28:18 AM »
Neat idea using the RC fuel filter in your air assist feed.  ;)

Tweakie.
PEACE
Re: Diy Laser cutter MK1
« Reply #17 on: May 13, 2011, 02:19:46 AM »
Neat idea using the RC fuel filter in your air assist feed.  ;)

Tweakie.

Jungle engineering at it's best eh ! It was the only thing i could find in the workshop that would fit, i did cut a thread in it though it's not just superglued in.  ;D

The one real problem i have now is corner speed, mach slows the head down to get a square cut on the corners, this is all fine and dandy if you're using a spindle and bit but on a laser it will make the cut deeper or give you over burn.

Is there a way to link spindle speed to head speed ? If so is there an easy way to set the ratio, as different material will require different setting?
The Brain: Pinky, are you pondering what I'm pondering?
Pinky: I think so, Brain, but this time, you put the trousers on the chimp.

Offline Tweakie.CNC

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Re: Diy Laser cutter MK1
« Reply #18 on: May 13, 2011, 03:51:34 AM »
BB,

I don't think there is an easy way.
You need to experiment with velocity and acceleration settings in motor tuning as well as your feedrates in the GCode.
You should be able to find a point where constant velocity just rounds the corners a little but the speed reduction is not too great. Everything is a compromise.
Keep us posted on your progress (I haven't really tried cutting balsa wood yet as I always seem to buy ARTF nowadays).

Tweakie.
PEACE
Re: Diy Laser cutter MK1
« Reply #19 on: May 18, 2011, 04:25:05 AM »
I still have a little Satan with a .049 in the basement. Probably still has a piece of streamer on back when me and a buddy used to play control line combat