Plexi-glass iMac

Posted by: TCPMeta

Plexi-glass iMac - 11/20/06 08:15 PM

I still have my iMac that I have modded to hell and back. I tryed craming the iMac into a old DVD player case and sadly it just didn't have enough room. I have got a idea for a small cube like case out of plexi-glass. I found some precut stuff at home depot but I'm facing a problem. What kind of drill bits would I need to drill holes into the plexi-glass? I have messed with plexi-glass a ton of times but I only cut/shape and glued the stuff.

The idea is to shape it and drill it into some wooden dalrods that have been cover with a carbon fiber decal and also a piano henge on the top or side to make the inside accesable.

I'm just doing this to get my iMac finaly finished and then start on my iCar mod.
Posted by: manhackman

Re: Plexi-glass iMac - 11/20/06 10:20 PM

I think most wood bits are fine with plastics.... or is it metal bits.... crap I can't remember...It has to do with the angle of the tip of the drill bit.  Definitely don't use spade bits, if there is any need for big holes.  If it is thick you can use cutting oil to reduce friction, but I wouldn't bother with that if it's less than 1/2".  Drilling a small pilot hole will help keep thing straight, and go slow... not in rpms but let the drill do the work.  I guess I mean don't use tonnes of pressure, you want to keep the friction down so that the plastic doesn't melt.
Oh yeah, you probably already know this (but for any newbies), don't peal the thin coating off until you've finished all the work on it!
Posted by: Waragainstsleep

Re: Plexi-glass iMac - 11/21/06 02:40 AM

I don't think plexiglass is all that brittle. The friction should help it to melt before it cracks. Best bet is to find a test piece somewhere of course.
Posted by: TCPMeta

Re: Plexi-glass iMac - 11/21/06 06:10 AM

It would crack before it melts unless its like a inch thick.
Posted by: TCPMeta

Re: Plexi-glass iMac - 12/10/06 05:40 AM

I woke up this morning and went to the garage to start cutting up the plexi-glass and my shelf I had junk on fell and landed onto the plexi-glass frown
Posted by: jahue

Re: Plexi-glass iMac - 12/11/06 10:03 PM

What you need to find is some one with a laser cutter! We have one in our research center and its great it cuts just about everything Plexi, Wood, Plastic, Etch metal and glass, Cardboard, Paper. No more drilling or anything.

Jahue
PS it might be available.....
Posted by: TCPMeta

Re: Plexi-glass iMac - 12/12/06 05:37 AM

Nah, just need a sharp ezacto knife or box cutter, a metal yardstick and a few clamps.
Posted by: maestro

Re: Plexi-glass iMac - 12/13/06 08:13 PM

A plexi knife will work wonders.  Some tape over your drill holes and new sharp bits are the way to go.  I must say that I end up buying alot of plexi, cuz I always end up cracking it at some point. >:D
Posted by: TCPMeta

Re: Plexi-glass iMac - 12/13/06 08:58 PM

I don't need to buy more drill bits I have drill bits made out of colbalt andis made for plastic and glass.

I'm going to try this out frist on a case im building for my future father in-law. If it works as planed then i'll build one for the iMac. I know somewhere down the road im going to screw it up again, like the B&W case i choped up.
Posted by: TCPMeta

Re: Plexi-glass iMac - 12/14/06 09:11 PM

I started on it today and so far so good. Right now it's kinda weak but when i'm done it will be a tank.
Posted by: manhackman

Re: Plexi-glass iMac - 12/14/06 10:21 PM

I really nice way of cleaning the edges is toasting them quickly with an oxy/acetylene torch!
Posted by: TCPMeta

Re: Plexi-glass iMac - 12/15/06 05:33 AM

I've been cleaning them with paint thiner on the edges then dry it then add a coat of silicon After all the plexi-glass is being mounted onto metal. The only thing that is bugging me is the screw heads stick out. I should swing by the hardware store and try and find some screws that are flat or grind them down a bit.
Posted by: shadowboxer47

Re: Plexi-glass iMac - 12/15/06 08:30 AM

Originally Posted By: "manhackman "

I really nice way of cleaning the edges is toasting them quickly with an oxy/acetylene torch!



I carry one of those in my pocket!

This is an awesome concept. I hope it works out for you.