How to cut small quanities of aluminium sheet?

**kidsam** · 27th October 2014, 12:37 PM

Originally Posted by Simplicity

You can also just use a de burring tool to. Attachment 328847
You just pull it a long the edge a few times both sides if you like.
There quite cheap
The quote you received at $22 is very reasonable .

Sup, i ended up not buying it from there, the $22 was for just the aluminium sheet, un cut
i ended up going to "morriset metal market", they sold me a 500x500x3 sheet for $10, which makes me wonder what sort of markup the other places have
I visited the local mens shed, and they pulled out some sheering tool, and helped me to cut it, the edges were cleaner than i thought they'd be, worked out well
i also left a small donation there before i left, and i think i have enough metal left for another project i think i'll get to down the road which is good

**Simplicity** · 27th October 2014, 01:10 PM

That's fantastic
Will be waiting for the pics

**kidsam** · 27th October 2014, 10:31 PM

Originally Posted by Simplicity

That's fantastic
Will be waiting for the pics

pictures of the hexagon? or the actual project i'm working on?

anyway, i have a metalworking related question.
to attach the LED's to the aluminium, i intend to drill 2 holes per light, and bolt them in place with some thermal compound between

my question is this
if i want to use a m3x0.5 tap to thread holes, do i drill a 3mm hole, or do i drill a slightly smaller hole, because the threads will be cut from the excess?

**RayG** · 27th October 2014, 10:35 PM

Originally Posted by kidsam

my question is this
if i want to use a m3x0.5 tap to thread holes, do i drill a 3mm hole, or do i drill a slightly smaller hole, because the threads will be cut from the excess?

For M3x0.5 you drill a 2.5mm hole.

In general you can work out the tapping drill size by subtracting the pitch from the diameter.. or you can look up a chart..

Ray

**Simplicity** · 28th October 2014, 12:00 AM

Sorry
I meant the project your working on

**kidsam** · 11th November 2014, 02:01 PM

Sup all, quick question, i recall some sort of metalworking product, it's basically just the threads of a bolt, without a head, i was going to use them to attach the lights to the lid of the terrarium, could anyone remind me what they are called?

also, here are some pics of the sheet + working light

**silentC** · 11th November 2014, 02:08 PM

It's called allthread rod or you can just cut the head off a bolt. You'll probably want to use stainless steel.

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