How To: Engraved Plastic Signs (Trail Maps)

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Joined: Tue Apr 18, 2017 10:40 am

How To: Engraved Plastic Signs (Trail Maps)

Post by johnelle » Wed May 17, 2017 12:54 pm

I have a request for plastic trail maps to be posted by the local trails folks on particularly confusing trails. They described a green plastic engraved sign which I interpret to mean using a fairly fine bit on a piece of plastic with a green surface but white/black laminated lower layers. Since this is all volunteer cheaper is better and the plastic materials appear none too cheap. ... 11D4A0CA1C

If anybody has done something like this could you clue me in on:
  1. Best supplies/supplier
  2. Approriate tool(s)
  3. Best technique
Seems like I will have to use a pretty fine v-bit (1mm? 2mm?) to letter paths/roads.

Posts: 60
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Location: Western PA, USA

Re: How To: Engraved Plastic Signs (Trail Maps)

Post by hatallica » Wed May 17, 2017 4:25 pm

Disclaimer: I do not have first-hand experience with the material described below. Forum user sgth0mas did a write-up on it linked here: ... k-articles

The King ColorCore website shows the exact scenario that you describe. Towards the bottom of the page, they have downloadable links regarding tools and CNC engraving. ... -Sheet.pdf ... orCore.pdf ... niques.pdf

Small pieces (up to 2 sq ft) can be found on the Inventables website: ... n-on-white

Larger pieces are available from various plastics retailers.

As a side note, the material that you linked indicated that it was for indoor use. The same company seems to have indoor/outdoor acrylic products (probably treated with UV inhibitors).
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Re: How To: Engraved Plastic Signs (Trail Maps)

Post by cozmicray » Wed May 17, 2017 4:33 pm

May be better / cheaper to use clear acrylic / plexiglass
Engrave on reverse side
fill in lines with colors (paint) high lite

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