How do I cut rectangle out of a plastic case lid, /diy/? I tried

>>1154890
Box cutter. Even it if is very thick you cut into it as far as you can. Then you can finish it with something else like a jigsaw. Otherwise, use a hotwire tool.

>>1154893
Where do I get a box cutter strong enough to cut through this?

The ones I have, the blades would just snap if I tried to cut this with those.

You need:
Dremel
Wood
Flat surface
Something to strap a Dremel down with. Rope works.

Screw a 1x1 to plywood and mount your Dremel over it. The idea is like a table saw, except the saw is above the object to be cut. This is a 5 minute ordeal that will give you better results. Put hinges on the 1x1 so it swings up to remove the object.
The 1x1 acts as a straight edge to keep your cuts even. Adjust your Dremel to your needed widths.

File: Bosch-GST-140-CE-Professional-Stichsaege.jpg (1013KB, 2114x1419px) Image search: [Google]

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>>1154893
>jigsaw
seconding this
have done this before and it worked fine

I'd vote for a plam router and quick template.

>>1154908
You make a score line then go over that line again and again. Each time you cut a little deeper. I've done it countless times. Keep in mind for something that thick you only need a deep score line for guiding the jigsaw.

>>1154890
They make jigsaw blades to cut clean lines in plexiglass, use one of those

File: hacksaw blade holder.jpg (26KB, 450x381px) Image search: [Google]

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Id use the jewlers saw (had to look it up - basically a coping saw)

Draw another rectancle inside the finish size rectangle. Offset the line from the finish rectangle by 1/32 or 1/16. Cut out with saw. Then, with a flat file, file to the finish line.

If a coping saw can't reach somewhere, I've found picrelated handy.

>>1154890
>once you veer off course with the saw
you need to practice a little more.
do you have a vice or clamp to hold the workpiece in?
you should be able to control the cut before using a jigsaw otherwise you are up shit creek

drill hole
clean up corner with chisel

>>1154890

as several anons have mentioned already

>jigsaw with blade for plastic

but let's say you have a circular saw only and a wood blade, just put the blade on so it spins the wrong way. works great.

>>1154893
>>1154923
>>1154952
What's a good jigsaw?

I see the Bosch one has special blades for cutting plexiglass and acrylic.

>inb4 Harbor Freight - I live in Canada and can't buy from there

>>1155053
No harbor freight, but there's always Canadian tire or Princess Auto. Blades are interchangeable between whatever brand.

>>1154890
>once you veer off course with the saw

Clamp a straight edge to your work and hold the base of the saw against it.