Author Topic: Cross drilling attachment  (Read 5301 times)

Offline steamer

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Cross drilling attachment
« on: August 19, 2012, 01:23:38 PM »
I built this a while ago and have found it very useful for cross drilling shafting directly on center and doing it quickly.

It mounts on my AXA toolpost, and by use of the compound angle protractor, I can set it to any angle I want.  Additionally I have a work stop on it for doing repeatative work.

It was written up in Model Engine magazine some time back....issue 12 I think.

Here's some photo's



and a shot of it in use



Because the attachement was made on the lathe that it is used on, the V's were cut with a large countersink with the part mounted on the AXA post, the V is EXACTLY on center...in my case I made two V's , a large one and a small one.    All I need to do is flip the attachment over.   I also put a whole on the small vee for cross drilling small shafts so that it can be supported from both sides.

Dave


« Last Edit: August 19, 2012, 01:32:19 PM by steamer »
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline Dan Rowe

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Re: Cross drilling attachment
« Reply #1 on: August 19, 2012, 02:38:44 PM »
Dave, nice and that looks a lot safer than the tail stock crotch that I have for my South Bend.

I have a 5C collet block for my AXA tool post and I have used it to slot the ends of stock. It had not occurred to me to use the same set up rotated 900 for cross drilling.

Dan
ShaylocoDan

Offline Don1966

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Re: Cross drilling attachment
« Reply #2 on: August 19, 2012, 06:37:54 PM »
Dave that is nice and useful have to add it on my list to do.

Don

Offline Bill Gruby

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Re: Cross drilling attachment
« Reply #3 on: August 20, 2012, 07:19:20 PM »
 Nice Dave, simple and productive.

 "Billy G"

Offline ironman123

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Re: Cross drilling attachment
« Reply #4 on: August 21, 2012, 07:10:16 PM »
Like that idea.  Like the modeling of the attachment to.

Ray
Ray
Central Texas

Arbalest

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Re: Cross drilling attachment
« Reply #5 on: August 25, 2012, 10:58:22 AM »
I like it Dave, very clever.

Offline RonGinger

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Re: Cross drilling attachment
« Reply #6 on: August 25, 2012, 01:52:53 PM »
What controls the height position when its placed on the toolpost? I dont see the bolt on top like aloris style tool holders. That of course wouldnt work for flipping it over. Do you just let it bottom on the lathe compound?

Offline Don1966

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Re: Cross drilling attachment
« Reply #7 on: August 25, 2012, 03:44:31 PM »
Ron read it again. The V's were cut on the lathe, thus they were at bottom when the V's were cut. So no adjustment is needed.

Don

 

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