How to bore through a round bar?

[hooblah]

This wouldn't be a problem on a flat bar, I'd simply drill a hole and cut through the centre. But I've got a round bar which needs to be welded to another bit of round bar perpendicular to each other, and I'd like them to fit together.
A milling machine would do the job, but I don't have one. I've got a ****ty little myford lathe, and a pillar drill with a mt2 quill. Could try the myford, but I'd have to buy more stuff for it and I would rather not. The pillar drill suffers from dropping whatever it's holding in the taper at the slightest inconvenience...

What's the most hassle free way of doing this without purchasing any more crap?

 

[James1979]

Plan A would be to do it on the drill with V blocks.

As it’s prone to spitting the chuck, Plan B would be to mount it on the tool post at the correct centre height and feed towards chuck, which has drill bit in.

 

[Wedg1e]

You don't mention any sizes so it's hard to say 'clamp it to a faceplate and bore it out', for example...

 

[Kram]

As the bars of the same diameter and what length?

Either set up in 4 jaw chuck or in the tool post.
As its to be welded anyway, you could weld onto a fixture plate/bar to aid mounting.

Overkill for this but a boring head is a nice tool to use. I've got one I want to use more but very rare I need it.

 

[eLuSiVeMiTe]

As it’s prone to spitting the chuck, Plan B would be to mount it on the tool post at the correct centre height and feed towards chuck, which has drill bit in.

Start that opp with an end mill. Put a flat on to stop the wander.

 

[Pete.]

The myford will do it perfectly. Drill bit in the chuck and crotch center in the tailstock.

 

[hotponyshoes]

Drill a hole through a bit of wood the same size as the bar, wrap the bar with enough insulation/Masking tape to make it a snug fit and tap it into the hole.
Drill through the wood and bar at the same time

 

[James1979]

Had to Google that, but that’s the best solution

 

[eLuSiVeMiTe]

Had to Google that, but that’s the best solution

Assuming it's a v block type affair for the tailstock.

 

[Beanwood]

Love this place - a crotch centre - something else I never knew I needed!!

 

[Agroshield]

...wrap the bar with enough insulation/masking tape to make it a snug fit and tap it into the hole...

...or slit the piece of wood down one side and clamp it up tight.

 

[addjunkie]

Hack saw to length and use a half round file. Clamp for welding!

Basic hand tools can be very useful sometimes.

 

[finyuk2005]

Love this place - a crotch centre - something else I never knew I needed!!

know idea what that is.... but im pretty sure i dont want to google it! ha ha!!

 

[Pete.]

know idea what that is.... but im pretty sure i dont want to google it! ha ha!!

HMSC Hints & Kinks

 

[gaz1]

a piece of angle iron welded to another piece that fits onto the myfords tool post will do it on the lathe

 

[hotponyshoes]

Couple of bits of Angle tacked to a flat bit to make your own vee block is another way to do it on the drill.

You can even put a couple of bits of round bar on the drill table, put a drill bit in the chuck to center the bars plus another drill bit the same size to keep them parallel, clamp them down and use that as a vee.
Only works for short lengths though or the clamps get in the way.

 

[Beanwood]

know idea what that is.... but im pretty sure i dont want to google it! ha ha!!

To be fair - I probably wouldn't have in work

 

[Newlands]

The myford will do it perfectly. Drill bit in the chuck and crotch center in the tailstock.

That’s the word I was looking for. I had one of those crotch centres on my old Boxford and it was really useful. And I never knew that was what is is called!

 

[ukracer]

Had to Google that, but that’s the best solution

A crotch?

 

[James1979]

A crotch?

Yeah it all got out of sync up there^^!

A crotch would be the best solution but if he doesn’t have one and doesn’t want to buy one then any of the other suggestions is equally as good