best material for the bed to cover honeycomb

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Keith Sherwin
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Re: best material for the bed to cover honeycomb

Post by Keith Sherwin » Wed Nov 30, 2016 7:22 am

Jason Wright wrote: i think if im still seriously effecting the acrylic 42mm below the job i need to look at the power im using maybe
Have to agree with you Jason. That is usually what Russ does.
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Gene Uselman
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Re: best material for the bed to cover honeycomb

Post by Gene Uselman » Wed Nov 30, 2016 7:37 am

Simon- that sounds like the ideal product for a pin board- I have spent 10 minutes googling both fireboard and cement-bound chipboard with very limited success. I wonder if a brand name might help me or if anyone in N Americas knows of a similar product? Thanks Gene

And Jason, I would do a test with your laser, I anticipate problems. I can't see the power level in your sig right now (in the reply window) but I seem to remember 80watts?
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Re: best material for the bed to cover honeycomb

Post by Jason Wright » Wed Nov 30, 2016 7:43 am

Yes its 80 watts
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Keith Sherwin
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Re: best material for the bed to cover honeycomb

Post by Keith Sherwin » Wed Nov 30, 2016 7:45 am

69 Real (80)Watt Laser w/multi FL lenses. T.L.
Made 5 CNC's, Electronics, Electrical, PLC & Computer background.
:idea: Started this forum - Using RDWorks V8.01.22 on W7 Pro
Lead in creation of the RDWorksLab English Manual.
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Gene Uselman
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Re: best material for the bed to cover honeycomb

Post by Gene Uselman » Wed Nov 30, 2016 8:45 am

I know you can cut it with a saw but I wonder how it will machine? Wayne has used it but thinks it will crumble when trying to machine. Gene
Gene- 130W 1300x900 China Laser with 2" FL lens
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Bodor BCL0605MU w/100w Reci- gone but [fondly?] remembered :D
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Doug Fisher
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Re: best material for the bed to cover honeycomb

Post by Doug Fisher » Wed Nov 30, 2016 10:26 am

That is an interesting recommendation, Simon. If you want to cut it intentionally, will a laser cut it about like wood? I am guessing this is similar to what you are using over there in the UK?

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Keith Sherwin
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Re: best material for the bed to cover honeycomb

Post by Keith Sherwin » Wed Nov 30, 2016 10:30 am

My guess is it would cut like "ROCK" - not so swell, but it would probably engrave like granite.
69 Real (80)Watt Laser w/multi FL lenses. T.L.
Made 5 CNC's, Electronics, Electrical, PLC & Computer background.
:idea: Started this forum - Using RDWorks V8.01.22 on W7 Pro
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Keith Sherwin
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Re: best material for the bed to cover honeycomb

Post by Keith Sherwin » Wed Nov 30, 2016 12:04 pm

Here is an eps grid of 1/8" holes for 16 x 24 bed.
Spaced 1" apart - 1/2" in from edges.
If others are needed, I will do them for you.
Center the grid on your material.
Pin Bed 16 x 24.eps
16 x 24 grid
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69 Real (80)Watt Laser w/multi FL lenses. T.L.
Made 5 CNC's, Electronics, Electrical, PLC & Computer background.
:idea: Started this forum - Using RDWorks V8.01.22 on W7 Pro
Lead in creation of the RDWorksLab English Manual.
Hot Dog Rotary
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Don Flynn
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Re: best material for the bed to cover honeycomb

Post by Don Flynn » Thu Dec 22, 2016 12:04 pm

Thought I would share this. My bed has a sheet of steel can't remember if it was 16 or 18 gauge screwed down. I recently built the pin plate like Russ to sit on top . Mine are 3/8 inch acrylic with 2mm hole space about 25 mm apart. The steel dowels are 44mm long. I am having fire issues as stated here by others I cut mainly at about 32 watts the acrylic is pretty marred and staring to warp even. I been using them for less than 2 weeks and becoming very disappointed by there performance. I didn't think the beams power would be strong enough at that distance. Gene did you ever CNC that aluminum plate you posted that sketch of? How is it working?
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Keith Sherwin
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Real Name: Keith Sherwin
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Laser Machine Make or Type: POS China
Laser Power: 80
Laser Bed Size: 400 x 600
Home Position: TL
RDWorks Version: V8.01.23
Windows Version: W7 Pro
Accessories: Hot dog roller

Re: best material for the bed to cover honeycomb

Post by Keith Sherwin » Thu Dec 22, 2016 12:41 pm

If it is cutting 1-1/2" lower than the material, I would think you are using too much power.
Russ' bed does have some cuts in it, but that is due to using too much power, so he cuts back the power to make the cut.
Might also have a bit to do with lens FL and focus point.
69 Real (80)Watt Laser w/multi FL lenses. T.L.
Made 5 CNC's, Electronics, Electrical, PLC & Computer background.
:idea: Started this forum - Using RDWorks V8.01.22 on W7 Pro
Lead in creation of the RDWorksLab English Manual.
Hot Dog Rotary
I'm not fat, I'm just... easier to see.

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