[negativ3]

Hi, It's really about material choice I'm asking for advice about.

As per the attached picture, I had this cut in the UK for £50 quid. Now as a prototype of 2pcs of 3mm cast acrylic sandwiched together to get me 6mm thickness required, I understand the low volume - high cost of parts, its all in the setup which equals time.

The problem I have is, I would like to make maybe 40 or 50 sets of these things, for a custom bit of arty display electronics I'm woking on for myself. The cost of that would be prohibitive and given the slight warpage seen, I may not get CNC / laser cut accuracy expected due to the slight material deformation.

Is there a material or process (not EDM ££££££) which could stay dimensionally stable while being lasered, but only have 1mm walls?

These could be made from anything, and the dimensions of the piece are 105 x 78mm and as stated minimum but consistent wall thickness is 1mm.

Any suggestions?

Many thanks
Andy

Attachment 479954

[cornerman]

I will try that on a piece if this tonight

https://www.gravostoreusa.com/eng/product/18993

Does it need to be see through?
That material comes in 2 or 3 layers

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[negativ3]

Thanks, No, material transparency (or lack of) is not a concern.

[negativ3]

I attach the dxf for ease and clarity...

[cornerman]

Sorry I can't help
I do not have access to a dxf file

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[grawley]

The material Delrin is used for its dimensional stability. It is a polymer material. I have seen a number of laser shops make parts from it.

"Polyoxymethylene (POM), more commonly known as acetal or its branded name Delrin®, is an engineering plastic offering low friction, high stiffness, and excellent dimensional stability."

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The material Delrin is used for its dimensional stability. It is a polymer material. I have seen a number of laser shops make parts from it.

"Polyoxymethylene (POM), more commonly known as acetal or its branded name Delrin®, is an engineering plastic offering low friction, high stiffness, and excellent dimensional stability."