Acrylic Repairs - Page 2

mark · #11 03-30-2009, 10:47 PM

The water like Weldon is Weldon 4.

I tried it on a seam once that was leaking without much luck, might have more luck on a crack.

mark · #12 03-30-2009, 10:55 PM

thought I had a old lid but must be buried deep. Came across this blank ~5.25" diameter, would it work for you?

StirCrazy · #13 03-31-2009, 02:28 AM

Quote:

Originally Posted by Mrfish55

When you get your new one made make sure they use cell cast acrylic, not extruded as the cast is much stronger. What is the diameter? I have some Lexan (even stronger again) kicking around, I can send you a piece if you want.

leave the lexan out of this

while it is good for sigting in 22s it scratches very easy compared to acrylic, and it is very pourous and has an inharently high moisture content which makes it a pain in the A55 to glue. it can be done, just a lot harder than regular acrylic.

All you need to do is go to industreal plastics and paints and get Weldon 3 not 4. run a dribble along the gracks with a needle tip aplicator wait about 5 min, turn over and run the other side. don't use to much, just enough to wet the crack.

Weld on 4 is weldon 3 with a bit of acrylic desolved in it to make it a tinly less wattery and better for getting bubble free joints.

Steve

brizzo · #14 03-31-2009, 03:48 PM

Quote:

Originally Posted by Railskinner

i was thinking about trying to glue the cracks together but they are really tight not sure if glue would wick in

the piece is 7" in dia., 11 mill thick, 5/16

any idea how long it would take to make a piece up?

Maybe 10 minutes total to setup my machine and cut it (cnc router). I have some 1/4" scraps that would do the trick.

brizzo · #15 03-31-2009, 03:52 PM

Quote:

Originally Posted by untamed

Methylene chloride would certainly wick into that crack and it would be better than new.

I agree to use methylene chloride for this repair, but I wouldn't agree it's better than new.. its been damaged

StirCrazy · #16 04-01-2009, 02:07 AM

Quote:

Originally Posted by nazerine

Maybe 10 minutes total to setup my machine and cut it (cnc router). I have some 1/4" scraps that would do the trick.

Oh, can I be your friend when I move to Kamloops, a CNC

Seriously though what kind do you have? I have been thinking of making one once I have some time.

Steve

banditpowdercoat · #17 04-01-2009, 04:04 AM

I have a CNC too. But no Acrylic scraps

brizzo · #18 04-01-2009, 05:24 AM

Quote:

Originally Posted by StirCrazy

Oh, can I be your friend when I move to Kamloops, a CNC

Seriously though what kind do you have? I have been thinking of making one once I have some time.

Steve

It's a new Canadian built 24x36" cnc router from General / Gorilla CNC. General machinery is known for it's famous green color

. It's at work, but we're a retail tool store and I have to do demos, and seem to have gcode ready

We're soon getting a newer version of the machine with some upgrades. Learning gcode, vector design, and tool paths has been fun.

But, if you're a serious tinkerer having a cnc machine would be golden. I'm trying to work a deal where I can take the machine home from time to time (the store owns it). There is some pretty amazing DIY plans on cnczone.com, and having one machine makes it very easy to build another machine.

Railskinner · #19 04-04-2009, 05:11 PM

I elected to get a new piece built and have sent the old piece to Nazerine.

For all those that posted and replyed thx! for all the great input

brizzo · #20 04-17-2009, 05:07 AM

Old One:

New One:

Nice new piece, got to try out a new router bit too. 1/8" onsrud o-flute upcut spiral

high feed rates

It seems the old piece was cracked from the pipe pressing down on the top of the flange. After looking at the old piece, its actually bowed downwards like a bowl where the crack is.

Expect it in the mail soon