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14-12-2016 #1
Hi all,
i'm new to the forum so excuse me if this post is in a wrong place.
So here is my problem:
I'm looking for a decent material to use for my DIY CNC router cutting bed (working area of 800x480mm). I need it to resist moisture as my router is in a garage that gets really damp during winter, and my current bed (plywood + mdf on top) expands and contracts like crazy.. I do a lot of V carving so a flat bed is a must.
So at the moment I'm considering 20mm thick acrylic or 20mm HDPE sheet. I'm looking to spend up to £100 if possible. The entire bed size is 1100x620mm.
So what do you guys think I should do? I just need a material that will resist moisture and bending.
CHeers, Kamil
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14-12-2016 #2
There is a sign material called Foamex, I use a 19mm thick sheet, you can drill and cut it like MDF, but it's moisture resistant as it's plastic, it's nothing like perspex btw
Martin
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14-12-2016 #3
Thanks Maxakarudy,
Is it also a rigid material that won't deflect much while cutting?
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14-12-2016 #5
Yep,
I have an industrial router, that's what most sacrificial beds are made of
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14-12-2016 #6
Ok, so I have 3 options now. I checked this foamex on ebay and it is much cheaper. I can drill holes and glue in t nuts at the bottom. I'm just a bit concerned about the rigidity of this material. It is a light foam material after all..
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14-12-2016 #7
19mm is very rigid, find a local sign company, they might have some to show you and could get you a sheet, Ebay is way too expensive
Last edited by Maxakarudy; 14-12-2016 at 11:57 PM.
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15-12-2016 #8
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21-12-2016 #9
Thanks for all your input, I'll see how I get on and will keep you informed.
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22-12-2016 #10
I've been looking for the trespa Athlon stuff, I was quoted £90 plus VAT for a bloody off cut 600x400.
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