how to make a rectangular hole on enclosure
Morgan Olsson email (remove spam text)
a) Punches (some simple need pre drilled hole, then using internal screw through hole to punch, more expensive which don´t need pre-drilling are whole bench apparatus...)
b) Drill + Nibbler ( I modified one cheap hand held, removed the top which was intended to hold the sheet steel while nibbling, so now it is smaller and get through a 8mm drilled hole.)
c) Drill + quadratic file.
d) drill, then use a fine hobby ("leaf-" ? ) saw (put saw blade through hole, before attaching it to blade holder)
e) like d but use hot wire
f) drill several holes close to each other around inner edge of wha tis to be the hole, then cut what is left with a small cutter plier, and use a knife or file to make smooth.
g) use solder iron or thick hot wire to melt a ditch around the borders, when almost through use knife and knock or iron again from other side.
h) I regrinded a small 3mm drill to be wery sharp along sides, so I can drill, then move it sideways. But it is hard to move straight...
paul wood wrote:
>I want to make a small rectangular hole on a plastic
>enclosure so as to fit in a slide switch, but since it
>is not circular, I cannot use a drill. Is there any
>way or tools to make this hole easily?
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