7 replies to this topic

[nev100]

Planning on building a custom dashboard.

Will be fitting the dials into metal sheet shaped to fit above dash rail.

Appears the dials will be either 50mm and 80mm diameter.

Any suggestion on best way to cut these size holes in steel sheet.

Many thanks.

[Fast Ivan]

https://rover.ebay.c...tm/372557176738

One of these on a pillar drill, assuming you don’t have access to a mill.
Clamp the metal to some wood so that the entire area where the hole is to be cut is supported

[luismx123]

I used a jigsaw with a metal cutting blade after fighting with a Dremel and angle grinder to get the circle right

[nev100]

Many thanks.

[unburntfuelinthemorning]

Hole saws are good for this.  Just use a decent make like Starrett.

[Tupers]

A hole saw will do a good job but is best used in a drill press with the sheet of metal secured to a piece of wood.

If you really want to push the boat out then a Q-max cutter is the perfect tool.

[Magneto]

A lot has to do with how thick the metal is that you're using, on light weight stuff you can use a knock-out punch, like they use for electrical work - quick and gives a perfect round hole. I've had hole saws - even top brands - walk a little, leaving a rough edge.

[Benoit_Dupont]

Well, i've been looking for ways to do décent work like that for ages. In the end, it looks DIY at best. So from now on here is what I do:
I spent some Time learning a CAD software
Spend the time drawing what I really want
Send the files to a métal laser cutting shop. There are plenty on-line that offer various thicknesses, materials. Etc. Sure there is one near you.

You can't beat laser cut métal sheets in terms of finish and accuracy.