¿ªÔÆÌåÓý

  1. 7x12MiniLathe
  2. Messages
Single Messages Topics Expanded

Re: Drill a Hole

 

You're drilling lots of these holes, so it would waste too much time to use a spotting drill, mill flats on the rod, and so on. Instead I would use a guide block, but different than the one in your picture. You say everything is locked to the table, but I see your hand holding the rod. I suggest drilling and tapping your guide so a setscrew? (maybe one on each side) could hold the rod in place.? Also, I would make the guide of steel and MUCH taller. There should be? by 5-10 mm of metal supporting the drill bit before it reaches the rod. If the drill is supported like?that, it should easily make the holes.

Mike Taglieri?

On Sun, May 5, 2024, 2:14 AM Johannes via <johannes=[email protected]> wrote:

Thanks boys, you have given me some new idea.

?

I am lazy, so I will first shorten a drillbit to minimum so it will not be so flexible.

Only 3 mm visible length. I have a good mill.

The rod is cheap hard metal, however, everything is locked very well to table .

The drill is new and of good quality. Regrinding a 1 mm drill is difficult.

Litlebit wrong grinding, and the drill will jump around.

?

If this not work well, I will make a punch and hammer a mark for the drill.

Maybe I have a 1 mm center drill?? The brass bit will keep the rod in correct position.

?

Milling first a flat is also possible. Take some extra time, however, maybe it will take away a bit of the rod strength?

See you next week.

?

/johannes

Mexico

?

?
Join [email protected] to automatically receive all group messages.