Thread: Looking for thin plastic? sheet
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08-09-2010 #11
OK, got me a 660 x 680 piece of 1mm styrene sheet for £3.15... it will form to a 150 or 200mm cylinder (will use some MDF formers) and can be glued with contact adhesive. That place is a treasure trove of interesting stuff for modelling... hard o get stuff like wire mesh sheet in small sizes (both mesh and sheet size) at reasonable prices.
Had a look at the laser and a long chat to the guy that operates it. Got a video on my phone that I'll upload shortly (once I've figured how to get it off the phone). They do acid etching as well. They also do on-site white metal and resin casting from own patterns.
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08-09-2010 #12
Excellent news \o/
I've not used the place myself, just one of the many links I've collected during my, err, feasibility studies. Yes, feasibility studies is a good description for projects that never quite get started ;-)
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08-09-2010 #13
:lol: What do you call a project that you've spent money on acquiring the parts, yet it still never quite got started??? I've a few of those too :)
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08-09-2010 #14
Hmm, all this talk of thin plastics has got me thinking what to use to make machine bellows. Any ideas? Was there anything that looked suitable in that shop irving?
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08-09-2010 #15
well the styrene comes in 0.5mm thick and thats quite pliable. If were scored right it might work without cracking... also PTGE sheet in 0.5mm. another idea would be styrene/PTGE strips glued to a fabric hinge.
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08-09-2010 #16
Interesting. I think making fabric hinges could rapidly get tedious though.
I'm getting really fed up with the swarf/dust/milling cutters dropping on to my Y-axis screw. The swarf builds up them makes a horrible noise from the oil being soaked up...can't be good for it.
Did you mean PFTE, not PTGE? I can't seem to find any info on PTGE. I think PTFE could be good since I've got some thicker sheet and it's very flexible.
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08-09-2010 #17
Keeping the dust out...
This guy planed his ballnut and used draught excluder
http://www.cnczone.com/forums/showpo...1&postcount=70
and this guy uses some sort of split pipe device + some sort of flexible plastic
http://oneoceankayaks.com/madvac/machine_frame.htm, see last two pic's on page
both look to be good ideas
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08-09-2010 #18
PETG is what I meant
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09-09-2010 #19
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09-09-2010 #20
Here's the video I took of their laser. It was making sample cuttings - basically a collection of 25mm squares of various materials, ply, balsa, card, etc etc, with the power & pulse rate used and an example of the cut you get by 'machining' a 20 x 10mm rectangle. Depending on the power/pulse rate this can be a mere scorching of the surface to a complete blast through and all depths in between.
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