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Registered Member #120
Joined: Fri Feb 10 2006, 07:07AM
Location: Westchester New York
Posts: 83
I did some searching on the net and I found this, HOW TO GLUE ACRYLIC, I actually didn't realize how much about acrylic I didn't know till I saw that video. The theme song is cheasy but I found the video to be very good. I now know what kind of glue I'm going to use. Prolly weldon 16. Heres the link to the rest of their videos, click me I think I'm going to make my own reservoir too, should be fun to make. I feel safer now that I realized that acrylic glue basically welds the pieces together, lol.
Registered Member #89
Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145
Dr. Spark wrote ...
Good day,
Drilling plexy is not hard. They make special bits for plexy, warning they are very expensive. The tips are much shaper and longer and bite the plexy at a much steeper angle. However, found that if you go to local hardware store and purchase some high quality bits such as Titanium drill bits and only use them on plexy, they work very well for ¼ the price. Drill very slow, ensuring the bit does not get hot. I use water and WD40 for the lube on the bit. If you require a large hole, start with small bit and go up in stages. Also drill on a flat surface so the back of the plexy is supported. When your bit is just about to go through the backside, slow down the bit. This is where the chipping will happen.
Hey, this is a cool thread….we can add stuff for plexy.
I am not expert, just have been working with plexy for a longggggggggggggggggggg time and learn new tricks in garage without a large machine shop.
Rgs, Ch
I've never had trouble drilling, only pieces must not be assembled before drilling (drilling the way Chris does can cause the drill to pull the piece over critical angle and smash everything, including hands).
I guess lots of grease would prevent that but I'd not prefer to do it, even if piece is on flat surface drill can still pull it out of my hands sometimes.
When pieces are held firmly to flat surface I can drill them easily with cheap drill bits. Bits are better if they are bit blunt, but a very small amount of drill grease helps if they are new (sometimes they already have it applied).
What I really don't understand is how you guys cut Plexiglas apparently without hassle, do you all own those $$$ ruler saws.
jig and hack saws are way too imprecise and painful, hardly anything can be done right with them to precision I require.
I've been successfully using hot wire but it is very slow and releases suffocating fumes.
Anyway I just seem to avoid plexi while you seem to enjoy it. I sometimes do some flat panels but this welding glue I bought doesn't see much use.
Am I just absolutely required to own a circular table saw with rulers to even start thinking about Plexiglas work?
Registered Member #160
Joined: Mon Feb 13 2006, 02:07AM
Location: Melbourne, Australia
Posts: 938
Thomas wrote ...
I did some searching on the net and I found this, HOW TO GLUE ACRYLIC, I actually didn't realize how much about acrylic I didn't know till I saw that video. The theme song is cheasy but I found the video to be very good. I now know what kind of glue I'm going to use. Prolly weldon 16. Heres the link to the rest of their videos, click me I think I'm going to make my own reservoir too, should be fun to make. I feel safer now that I realized that acrylic glue basically welds the pieces together, lol.
Great find Thomas, I can see where I went wrong with the glueing I did now. That site is going straight to the bookmarks!
Registered Member #1083
Joined: Mon Oct 29 2007, 06:16PM
Location: Upland, California
Posts: 256
I found a trick for drilling plexi. Starting new holes and enlarging old ones. A normal drill bit has a positive rake angle meaning it digs in to the material. If you are careful, on a fine grit grinding wheel make that rake angle neutral or even slightly negative. It's kinda hard to illustrate, but here's a lame attempt in paint. The left is a normal drill bit, and the right is a modified neutral rake bit. The bottom illustrations are a little exaggerated, but it gets the point across. I will post some real pics of my modified drill bit later this afternoon.
Registered Member #477
Joined: Tue Jun 20 2006, 11:51PM
Location: Seattle, WA
Posts: 546
Incidentally, I finally re-found a picture of Dave Leddon's acrylic-encased 10kVA pole pig, which is another good example of what I was trying to do. This sure makes that 10kVA pole pig into a cute little thing
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Making an enclosure from acrylic sheets?
