[TheForge] drilling question

[ries]

Yes, but thats not drilling- thats forging....

If you use a spacer jig, you can get pretty accurate hole to hole  
spacing, even working hot. I have seen Italian blacksmiths, who crank  
out round bar grilles, which have a punched and drifted hole every 6",  
get very accurate spacing just with a simple jig. The jig indexes off  
the last hole, and you punch right thru it, so every hole is the same  
distance apart.
You got to be good at bending things straight again at the end,  
though...

ries


On Mar 10, 2009, at 1:19 PM, Peter Fels & Phoebe Palmer wrote:

Another method is to slit and then drift it at an angle..pf

ries wrote:
> Its really hard.
> The problem is that you need to hold the material very rigidly.
> I have never gotten decent results on a small drill press.
> My bridgeport works pretty well, because it weighs about a ton, and
> can hold the metal securely enough to actually keep an accurate angle.
> What most people do is drill or punch the hole straight thru, then
> either ream it at an angle, with an end mill in a bridgeport, or hand
> ream it at an angle with a big reamer in a hand drill, or maybe a
> carbide burr.
> Better is to design the piece so you dont have to drill angled holes.
>
>
> ries
>
>
>
> On Mar 10, 2009, at 12:31 PM, Andy Gladish wrote:
>
> Here's one for the list:
> Looking at an upcoming railing job, I realize that I've never really
> learned how to drill angled holes- anyone have pointers, or links to a
> site that tells best practices for that?
> A few Google searches didn't really turn up what's needed.
>
> Thanks!
> Andy G.
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> Ries Niemi
> Industrial Artist
> http://www.riesniemi.com/
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Ries Niemi
Industrial Artist
http://www.riesniemi.com/