On 20 May 2018 at 15:26, Gene Heskett wrote:
>> https://www.ebay.com/itm/131375282525
>
> That looks a lot like an engraving bit, same as I use for making PCB's,
No, not at all. Engraving bits have the tip off to one side.
--
atp
"A motorcycle is a bicycle with a
On Sunday 20 May 2018 10:17:27 andy pugh wrote:
> On 20 May 2018 at 02:41, Gene Heskett wrote:
> > Good idea but the drill bit doesn't seem to want to self center,
>
> Spotting drills work better than centre drills if you are not actually
> making a centre hole for a lathe
On Sunday 20 May 2018 09:57:29 Erik Christiansen wrote:
> On 19.05.18 21:41, Gene Heskett wrote:
> > I have all these brass slugs fixed so they are keyed into a scallop
> > in the edge of a 7/8" R8 collet that fits the head of a 4mm capscrew
> > in the lower end of the slug. So the next operation
On 20 May 2018 at 02:41, Gene Heskett wrote:
> Good idea but the drill bit doesn't seem to want to self center,
Spotting drills work better than centre drills if you are not actually
making a centre hole for a lathe to use.
https://www.ebay.com/itm/131375282525
--
atp
On 19.05.18 21:41, Gene Heskett wrote:
> I have all these brass slugs fixed so they are keyed into a scallop in
> the edge of a 7/8" R8 collet that fits the head of a 4mm capscrew in the
> lower end of the slug. So the next operation is to set it into the
> spindle, and position it so the
On Saturday 19 May 2018 22:03:58 andy pugh wrote:
> On 20 May 2018 at 02:41, Gene Heskett wrote:
> > But how best to prevent the drill bit from doing the sailors
> > hornpipe dance when the brass first touches it? Thats the $64
> > question.
>
> I would take a completely
On 20 May 2018 at 02:41, Gene Heskett wrote:
> But how best to prevent the drill bit from doing the sailors hornpipe
> dance when the brass first touches it? Thats the $64 question.
I would take a completely different approach, I would make a fitting
for the lathe spindle