Learning Lithophane

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Rdj357
Posts: 8
Joined: Wed Jul 22, 2015 12:03 pm
Model of CNC Machine: Sampson 510

Learning Lithophane

Post by Rdj357 »

I guess I should have started with learning to pay attention material size as I didn't 'remember correctly' and didn't verify so I drew off the page!! :oops:

I cut at 100 ipm with a 1/32 tapered BN, I think I need to slow it down a little for better detail and less machining lines. I don't think my Z axis is quite up to par at that speed..

It's a start, hopefully a little fine tuning and I can improve on it! :D
IMG_20150819_093234.jpg

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Xxray
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Re: Learning Lithophane

Post by Xxray »

Doubt if speed is a factor, with lots of Z movement and machine will pretty much run at 1 speed.

Try less line spacing, 12% or less, down to 8%. Cut time increases, so does detail.
Doug

Rdj357
Posts: 8
Joined: Wed Jul 22, 2015 12:03 pm
Model of CNC Machine: Sampson 510

Re: Learning Lithophane

Post by Rdj357 »

Thanks, I'll try that first. That was either 10 or 12% so I'll see what 8% does for me.

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Xxray
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Re: Learning Lithophane

Post by Xxray »

Hmm, should not be making lines like that at 10% with a 1/32 bit.
Settings correct in tool settings ? Could try a 45 angle, couldn't hurt.
Doug

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dhellew2
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Re: Learning Lithophane

Post by dhellew2 »

I typically use a 3/64" bit at 8% stepover, 16k rpm, 55 to 60 ipm. It takes awhile but worth the wait. Slower speed is necessary when using smaller bits. When cutting at a 135 degree angle a roughing cut is seldom necessary which compensates for some of the slower speed.

This might be of some use to you. This works for me.
LITHOPHANE instructions.zip
(1.9 MiB) Downloaded 221 times
Dale
You will get old if you live long enough!
Young = time, no money
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Rdj357
Posts: 8
Joined: Wed Jul 22, 2015 12:03 pm
Model of CNC Machine: Sampson 510

Re: Learning Lithophane

Post by Rdj357 »

Thanks very much for the tips and info!

This one was at 135 degree and I'm going to double check the tool settings. I'm looking forward to cutting at 8% and 60 ipm to see how that does. :D

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