Square holes

[firebird]

Hi Ian

I'll look into it. It might be worth making one. A stand alone device might suit me better than one that has to be fitted in the lathe.
Cheers

Rich

 

[old-biker-uk]

Dennis
The hand turning is the easy bit! For the little knurled knobs on the dividers I turn and screw the threaded part and rough out the shape leaving the part to be knurled. (The knurling wheels both spiral & dot were made according to the instructions of Mr Ford here.

After knurling the knobs are parted off, reversed & held by the threaded end in stub mandrels, finished by hand turning.

Hand turning is one of those things you really just have to have a go at. All you need is a few simple tools & a rest.

I have hand turning rests made for each lathe but they don’t have to be anything special, a bar in the top slide tool rest is OK.
You learn more about cutting angles by doing some hand turning than from a shed load of workshop manuals !
Mark

 

[tel]

Hmmmm .... seems I lied, mine doesn't mount on the topslide, it bolts direct to the cross slide. Haven't used it for a few years - Mr.Douglas gets most of that sort of work these days

The mounting arrangement allows for some offsetting for tapered work.

 

[Julian]

Tel

That looks a handy tool and something I have considered building for a while. Thanks for the photos it makes the building of one lool very straight-forward.

Circlip

Thanks for the acknowledgement. It was not my intention to "jump down your throat" but I am very pleased you have understood what I meant and have taken it on-board in your reply to Rich

Many thanks

Julian

 

[CrewCab]

What a brilliant thread ;D .............. Mark :bow: top class stuff mate, if I ever get a little more free time I could well be trying to pick your brain

I think as with most folk on here we would love to have all the available tooling ............ state of the art Rotary Broach etc, but after all, it's a hobby so it ain't going it's unlikely to happen ........ I admit to being a gadget freak but to be fair I'm among stiff competition here ........ so thanks for sharing all the above idea's, they are just great, whether I'll ever make a square punch remains to be seen but, knowing that I can if I want is what matters 8)

Cheers Guys

CC

 

[tel]

Just to add to the mix, meet Mr.Douglas

 

[CrewCab]

Just to add to the mix, meet Mr.Douglas

Hi Doug

 

[Julian]

So tel....how does it fit on the cross-slide.......must be a big lathe!!!!!!!!!!!!!!!!!!!!



Julian.

 

[steamer]

The Pictures as promised.

Mine is based on the ME model only it mounts to the AXA style wedge toolpost. 5 seconds its on, and off.

I am going to rebore the ram and make it 1 1/8 instead of 7/8. This one is a bit wimpy for 5/32 keyways and larger. But smaller ones are OK in steel.

 

[SmoggyTurnip]

The hole was for this centre hole divider.

That is a beautiful center hole divider! ... What's a center hole divider???

 

[baldrocker]

Umm ditto
BR