Great Lithos

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Great Lithos

Postby walter.reinhardt » Mon Jun 10, 2013 7:08 am

After e lot of hours, i figured out the following parameters and configuration.

White translucently thermoplast 2.5 mm
engraving bit 0.3mm - depth 0.75mm/path

distance between lines: 0.132 mm
graving-depth: 1.5mm
speed: 40mm/sec
rpm: 8'500
no cooling

have fun and a lot of luck
Attachments
IMG_2778.jpg
IMG_2777.jpg
IMG_2820.jpg
IMG_2821.jpg
IMG_2811.jpg
IMG_2816.jpg
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Re: Great Lithos

Postby Ms Wolffie » Mon Jun 10, 2013 7:29 am

Love them.
How did you get the colours in the bottom picture?
Cheers
Wolffie

Edit:
Are you sure you used a 0.3 mm bit?
PVC just will not allow me to use that size bit with the other settings :x
Cheers
Wolffie

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Re: Great Lithos

Postby walter.reinhardt » Mon Jun 10, 2013 9:18 pm

Hi Wolffie

Detailed settings: the distance between lines is approximate... somewhere near the value I wrote in the previous post.

How to get colors?
Transparent printable foil with printed picture (fotoquality) and fix it on backside of the Litho :D

good luck, have fun
Walter
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Re: Great Lithos

Postby walter.reinhardt » Mon Jun 10, 2013 9:37 pm

Some more examples
Attachments
IMG_2823.jpg
IMG_2779.jpg
IMG_2781.jpg
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Re: Great Lithos

Postby Ms Wolffie » Mon Jun 10, 2013 11:32 pm

Thanks Walter
Please tell me what parameter I have set wrongly.
For some strange reason the program will not accept 90 degrees but 89 is fine. Strange.
CuttingDepth.jpg

Cheers
Wolffie
Cheers
Wolffie

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Re: Great Lithos

Postby tmerrill » Tue Jun 11, 2013 1:32 am

Please tell me what parameter I have set wrongly.

You are inputting 89 degrees as the Side Angle so PVC thinks you are using a bit with a 178 degree Included Angle, or almost flat. Therefore the maximum allowable pass depth is going to be very small.

It won't accept 90 degrees as the Side Angle because that would result in a flat bottom bit (end mill).

See your other post for more details.

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Re: Great Lithos

Postby Ms Wolffie » Tue Jun 11, 2013 4:53 am

Thank you Tim, now I understand.
I did read your answer on the other post as well.
Cheers
Wolffie
Cheers
Wolffie

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Re: Great Lithos

Postby walter.reinhardt » Tue Jun 11, 2013 6:21 am

Hello Wolffie

I recommend engrave tools with maximum 60 degrees (half = 30 degrees -> check the small tool-graphic in the editing-tool-box within your tool-database). Engraving-tools, greater than 60 degrees, I had less quality. Recommendation somewhere between 36 and 60 degrees (half = 18 and 30 degrees).

For more details, send me a private message.

best regards
Walter
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Re: Great Lithos

Postby Ms Wolffie » Wed Jun 12, 2013 1:54 am

walter.reinhardt wrote:Hi Wolffie.

How to get colors?
Transparent printable foil with printed picture (fotoquality) and fix it on backside of the Litho :D

good luck, have fun
Walter

Another question if you don't mind.

How do you get the printed foil the same size as the litho?
Do you print it first and then set the size of the litho or is there another trick?

Cheers
Wolffie
Cheers
Wolffie

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