Mill vice backstop

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Mill vice backstop

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ja2on:
Darren I should have tried ebay befor asking silly questions :doh:
does this look like your diamond plate ?
unfortunately the seller does not give the size
http://cgi.ebay.co.uk/PROFESSIONAL-DIAMOND-SHARPENING-STONE-COARSE_W0QQitemZ110373411704QQcmdZViewItemQQptZUK_Hand_Tools_Equipment?hash=item110373411704&_trksid=p3286.c0.m14&_trkparms=72%3A1688|66%3A2|65%3A12|39%3A1|240%3A1318

Darren:
That looks like the one Jason, you won't regret it.....if you go for it come back to us and let us all know how you get on with it :thumbup:

Darren:
This is the exact make that I have.
http://cgi.ebay.co.uk/Diamond-Sharpening-Stone-Set-Chisel-Plane-Blade-Jig_W0QQitemZ400009170193QQcmdZViewItemQQptZUK_Hand_Tools_Equipment?hash=item400009170193&_trksid=p3286.c0.m14&_trkparms=66%3A2|65%3A2|39%3A1|240%3A1318

bogstandard:
Don't worry Darren, two builds in one will spice it up a little. Mine is slightly different to yours anyway, as you will find out in a bit.

With ref to the diamond laps. If possible use a little bowl of water with them, and keep rinsing them off, otherwise the diamond chips get clogged up with the metal you are removing, and they soon lose efficiency. Darren is perfectly correct, the ones with holes in are no use for small tooling, they are designed for use with large tooling like carpenters chisels and plane blades, where the cutting edges can straddle the holes.

Now back to my 'watching paint dry' post. It was going to be done in three parts, but after knocking myself out with the vice the last time, I couldn't get done as much as I wanted this time. So it will now be in four parts.

So now back to it, part three of this enthralling post (yawn).

I am making mine more of a permanent fixture than Darrens one, and in this post it shows where our paths divide.

The second piece of this job to be made is the standoff from the vice, here it is ready to have a thread cut on the end using an 8mm die, power fed. This bit of thread screws into the vice.

The 3/4" bar was parted off at about 25mm long, remounted the other way around, faced up and an 8mm thread was power cut in to a depth of 18mm.

Parts 1 and 2. Getting really exciting now, zzzzzzzzzzzzzzzzzzzzzzzzzz

So now using part 1 as a gauge. An 8mm spigot was cut on the end of the rusty old bar. Part 1 was put onto the now emerging part 3, and marked to where it stuck out of the slot.
An 8mm thread was cut on the spigot until it was just further along the spigot than where it was marked. The thread was trimmed to a length of 15mm from where it protruded out of the slot, this will make sure it doesn't bottom out in the hole in part 2.

You can just make out where the plain portion finishes and the thread starts inside the groove. This makes sure there is plenty of tightening length to clamp the parts together.

This is how they will assemble together.

A spot of threadlock was put on the threads of part #2 and it was screwed into its permanent position on the vice. I don't want this part screwing out of the vice while I am undoing the clamp handle.

This is where I wake up and start to get excited. The part I had just made (#3) was in fact the first part of the clamp handle. This shows the second bit of the handle partially completed.
As with my lathe, when I fitted handles to it, I kept within the look of the lathe. This time, I want to try to keep the same look as the mill, and at the top is a sample of the handles used on the mill.
Unfortunately I don't have one of those new fangled ball turning watzits yet, so I am going to have to revert to my 'old' ways, and use my hands.

Using a profile cutter in the toolpost, coupled with a bit of hand/eye coordination, I roughed out the basic shape of the handle.

Machining time was now over, using various shapes of files, I gently stroked the handle into shape. The piece of paper behind is to make it easier to see the contours of the handle being made. This still isn't quite to shape, there are still a few straights and bulges to get rid of or blend together. After the filing came emery cloth, followed by fine wire wool.

This handle took about 40 minutes to profile, from start to finish. It isn't a perfect match, but close enough for me.

So a few more little bits to make and a bit more hand profiling, and we will be able to see if it was all worthwhile.

Bogs

John Stevenson:

--- Quote from: Darren on April 10, 2009, 05:17:03 PM ---

My vice was already threaded on both sides and tonight I finally found a bolt to fit. Alas it was too short, but it did allow me to find out what the thread in the vice was.
It turned out to be 3/16 something or other thread. That's just a Nats whotsit smaller than 5mm at 4.762mm. Even better the thread form was the same pitch as far as I could tell. A 5mm bolt wouldn't go in so I simply tapped the threads with a 5mm tap.

--- End quote ---

2BA thread

JS.

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