The Shop > Tools

Is it Dead?

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Darren:
Thanks John, so far it's been yet another good learning exercise for me. I have a bit more to do to it yet, but I think it's gonna be a keeper.

I will know when it's put to proper use  :ddb:

Darren:
I decided tonight that I'd attacked this completely the wrong way, as in order of tasks....never mind, the practice was good.

When I turned the jaw plates upside down I realised that they were now resting on the screw threads holding them on. No longer the lip in the casting and thus having no positive positioning.
Long term this could have been a disaster...

So, now machining the little steps to sit the plates on. At the same time truing the fixed jaw..... :ddb:



Fitted the jaw plate and decided to have a go at truing that up too using the end mill side cutting flutes. It worked rather well and the finish is excellent...



Now the same to the movable jaw face



The tops of the jaw plates were re-machined.......again.....final time  :med:

And the whole top area cleaned and trued up



Added a 3mm wide 1mm deep relief slot for better seating of flat plates etc..



Just a little de-buring to do now and all the important bits are done...finished. I'm glad I had another go at it, re-machining the plates and jaws this way have really trued everything up perfectly, Grips like an ox  :)
Really pleased with the way this has turned out, it might even get a proper clean up and a coat of paint.... :lol:

Just a vice stop and maybe a locating slot on the underside to do now.

I have to say, I never expected to be able to do this, exp the jaw plates !!

Darren:
Most vices lift the movable jaw upwards when tightened, I'm not sure about this one as I have not tested it.

I was thinking, the moveable jaw is normally pushed tight by the clamping screw and this is what causes the lift.

What if the movable jaw was pulled by the screw, wouldn't that have the opposite effect and pull the jaw down?

If the clamping screw was help at the fixed jaw end and the movable jaw ran along it's thread then this should work?

Anyone?

Darren:
Ah, like this one.... :)

Stilldrillin:
Darren,

The vertical movement in the moveable jaw is due to clearance in the slideways allowing it to lift.....  :scratch:

At work I always kept the slide screws nipped, so not allowing any excess movement....  :thumbup:

David D

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