metalb00b00
Well-known member
- Joined
- Jul 8, 2012
- Messages
- 294
Hi guys, I'm in the process of making my own front panel. I use a raw piece of 3 mm aluminum plate.
Just finished drilling all the holes for the components, but unable to proceed further because I don't know how to drill the oval shaped bracket mounting holes.
In case I messed up with the naming convention, here's a picture showing what I meant.
I measured the hole size from one of my equipment, and the size is 10 mm x 6 mm.
I practiced by drilling two intersecting (progressive drilling by changing the drill bit size from 1 mm to 6 mm) 6 mm holes on an unused piece, thinking that I would later scrape off the jagged edges with a thin rasp, then smooth it out to make that oval shape, but no luck. Drill bit repeatedly got caught in the intersection, and then slipped randomly to any direction. I'm using a hand drill BTW, not a fixed drill station, so.. perhaps this is why it didn't work??
Anyone knows another technique on how to make these holes flawlessly? I don't have a router, or punching machine. Just a hand drill and a complete set of drill bits with both imperial and metric unit diameter.
Just finished drilling all the holes for the components, but unable to proceed further because I don't know how to drill the oval shaped bracket mounting holes.
In case I messed up with the naming convention, here's a picture showing what I meant.
I measured the hole size from one of my equipment, and the size is 10 mm x 6 mm.
I practiced by drilling two intersecting (progressive drilling by changing the drill bit size from 1 mm to 6 mm) 6 mm holes on an unused piece, thinking that I would later scrape off the jagged edges with a thin rasp, then smooth it out to make that oval shape, but no luck. Drill bit repeatedly got caught in the intersection, and then slipped randomly to any direction. I'm using a hand drill BTW, not a fixed drill station, so.. perhaps this is why it didn't work??
Anyone knows another technique on how to make these holes flawlessly? I don't have a router, or punching machine. Just a hand drill and a complete set of drill bits with both imperial and metric unit diameter.