Mighty fine work Sumphead! Great work, great pics, you got it down with working with this material. I killed the thread I started and added the text here to the Sticky for what it's worth. Scott
There were some excellent suggestions on Eddie's DYI Sump Thread, I didn't want to threadjack his post, but I thought the subject worthy of a thread in itself. Being new here, I would guess this subject has been brought up before, I hope I'm not beating a dead horse.
I had mentioned that I was using a jigsaw with a fine tooth blade and it was working well with the 1/4 inch acrylic. I found that a 10 or 12 teeth per inch (tpi) was fracturing the thinner stuff. I chose using the jigsaw as the project I'm working on required several curved cuts. Still there was some melting back together behind the blade.
This brings to mind my line of work. I'm sure everyone has seen the overhead drive-in bank units that sends the carrier in to the tellers. Most often we use a 4 1/2" clear acrylic tube above the customer unit just to canopy level then switch to regular pvc
and take it in the bank.
We always have to cut to fit these acrylic sections, I would say they are 1/4" thick, maybe 3/8ths at the most. The reason I bring this up, I found that a sawsall works well for this with a little practice. Cutting slow with a wide blade allows the blade to pull most of the heat away from the teeth, hence less melting.
We have also used a table "chop saw" like masons use for brick cutting for cutting the acrylic and pvc
tubing. It works good on the pvc
, but tends to make a rougher cut and takes more filing on the acrylic vs. the sawsall to finish the end smooth.
With the jigsaw and plate acrylic, I found that cutting fast at a high rpm produced less melting behind the blade. When that blade gets hot though, there isn't anything to do but let it cool off or it will melt the acrylic like a hot knife in butter.
Biggen, I haven't tried the fine tooth blade on the 1/8" acrylic yet or used a table saw nor have I tried the scoreing method. I would guess a table saw would work well, a large blade pulling more heat away from the cut plus a wider cut with less chance of melting back together.
Has anyone tried using a spray bottle of water ahead of a jigsaw blade to keep the temperature down? It might work, but I'm not a big fan of electric tools and water I'd love to hear some more ideas and experiences from the seasoned craftsmen here.