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what material for thick sheet parts?

Posted by ksmith5135 
what material for thick sheet parts?
March 03, 2010 12:42PM
I have downloaded the .DXF file for the thick sheet parts for my Mendel and I am about to send it to a laser cutting company. What material should they be making it out of? It is not specifically stated in the BOM. I was planning on specifying 1/4" plexiglass, would that work?
Re: what material for thick sheet parts?
March 03, 2010 03:12PM
1/4" plexiglass would work.
They use 5/6 mm MDF.
Anything between 3 and 6 mm would work EXCEPT for the BED.
This should be very flat and not liable to warp with head (e.g. plywood is generally not good for the bed).
Otherwise feel free.
A mendel looks pretty cool with clear (or lightly tinted) plastic.


Bob Morrison
W├Ârth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
Re: what material for thick sheet parts?
March 13, 2010 07:35AM
I would discourage "extruded" PMMA/plexi, because they are very brittle.

I will make mine out of PVC.

Best regards,
Laszlo


Mendel build log: [blog.arcol.hu]
Re: what material for thick sheet parts?
March 13, 2010 08:42AM
I used 3mm Dibond. Perfectly flat, easy to machine and relatively stiff for 3mm. It is HDPE laminated with aluminium. Probably not good for laser cutting though.


[www.hydraraptor.blogspot.com]
Re: what material for thick sheet parts?
March 17, 2010 12:47PM
nophead,

what kind of Dibond are you using? I am currently in discussions with local suppliers, and apparently there are different kinds of DiBond.confused smiley Who knew?

Thankyou in advance.
Marius Botha
Pretoria, South Africa
[mariushermanbotha.wordpress.com]
Re: what material for thick sheet parts?
March 17, 2010 02:28PM
I don't know what the different types are. I used this stuff [cgi.ebay.co.uk]


[www.hydraraptor.blogspot.com]
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