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Brett Hurt08/07/2018 02:51:18
18 forum posts
5 photos

this guy is great https://www.youtube.com/watch?v=IR2p9ceg1bw

Edited By JasonB on 08/07/2018 07:01:09

XD 35108/07/2018 06:53:09
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893 forum posts
38 photos

Thanks Brett !

A very interesting video and a very useful set of clamps !

I like his mill !

JasonB08/07/2018 07:03:36
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Moderator
12833 forum posts
1169 photos

Only odd thing to me was that the jaws are not keyed on in some way as all the downward clamping force is taken by a couple of small cross head screws?

Nice horizontal borer and I like the packing blocks he was using with their tapped holes so you can get the clamp stud right up close to the work

Raymond Anderson08/07/2018 07:29:57
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697 forum posts
132 photos

Very nice work, Solid looking clamps.yes

Michael Gilligan08/07/2018 08:32:33
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11219 forum posts
477 photos

Beautifully 'sculpted' ... and much larger than I imagined, from the opening shots.

Very impressive.

MichaelG.

mick7008/07/2018 09:23:29
510 forum posts
38 photos

love them.

but question about it from someone who knows little about milling having only done very basic bits on one.

i assume he used cutter to start bolt hole then finished with drill bit as cutter less likely to wander giving better accuracy?

Michael Gilligan08/07/2018 09:37:21
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11219 forum posts
477 photos
Posted by mick70 on 08/07/2018 09:23:29:

... i assume he used cutter to start bolt hole then finished with drill bit as cutter less likely to wander giving better accuracy?

.

Correct, Mick yes

The side loads on the drill would be appalling, otherwise.

MichaelG.

richardandtracy08/07/2018 09:39:40
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883 forum posts
10 photos

Wouldn't mind his mill.

The idea is entirely scalable, and is a good one.

Jason, the jaws are held on with two screws that look to be one size smaller than the main clamp. The vertical clamp load, neglecting friction, could then shear the two jaw screws. As the area of the jaw screws is about 20% greater than the clamp screw, it's theoretically possible to shear the screws when clamping down. In practice, because friction exists, this won't be likely. I agree a key would be useful, I wouldn't argue against it - based purely on all the un-necessary brochure machining already being put on the clamps, so adding a key would be a negligible increase in machining time. But the key is not strictly needed.

Regards

Richard.

Rik Shaw08/07/2018 09:49:51
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1133 forum posts
318 photos

I would love a set of clamps like this albeit a bit smaller. The question is, can I afford the time it would take to make them while working at my normally relaxed "speed"? sad

Rik

Ian McVickers08/07/2018 11:16:36
23 forum posts
4 photos

Nice bit of workmanship there. When I saw the first picture I thought how did he manage the large radius? Good to see the techniques used and the finished job. Now all I need is an enormous bed mill that cuts steel like butter.....

Mick B108/07/2018 11:18:54
552 forum posts
33 photos
Posted by Rik Shaw on 08/07/2018 09:49:51:

I would love a set of clamps like this albeit a bit smaller. The question is, can I afford the time it would take to make them while working at my normally relaxed "speed"? sad

Rik

I think there's a few of caught on the horns of that dilemma. laugh

Of course, if all you really gotta do is scrawl a few chalk lines on a block, chuck it in the mill and turn on, I dunno what all this engineering mystique is about... wink 2

Vic08/07/2018 12:04:56
1630 forum posts
9 photos

Good link Brett, thanks. I would have liked to see what the mill he used looked liked though, seems to be a monster! Also, the finish straight off the machine didn’t look particularly good on those clamps but then in the final shots they looked great? The Vee blocks from rail track video is also pretty good.

Clive Hartland08/07/2018 13:26:03
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2295 forum posts
38 photos

I saw a tape measure and one time a vernier but the chalk intrigued me, All this careful marking out seems a waste of time. He did use blocking in the table grooves and that machine was quite powerful it seems.

JasonB08/07/2018 13:44:45
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Moderator
12833 forum posts
1169 photos

I think the chalk was for the camera, I one shot you can see he has blued a line and scribed onto that.

JasonB08/07/2018 13:57:35
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Moderator
12833 forum posts
1169 photos

You can see a bit more of his borer in this video. Or if you have 25,000 Euros to spare this is the one for you!

mick7008/07/2018 14:00:53
510 forum posts
38 photos
Posted by Michael Gilligan on 08/07/2018 09:37:21:
Posted by mick70 on 08/07/2018 09:23:29:

... i assume he used cutter to start bolt hole then finished with drill bit as cutter less likely to wander giving better accuracy?

.

Correct, Mick yes

The side loads on the drill would be appalling, otherwise.

MichaelG.

cheers for that.

a good day as learnt something new.

Michael Gilligan08/07/2018 14:10:52
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11219 forum posts
477 photos
Posted by JasonB on 08/07/2018 13:57:35:

You can see a bit more of his borer in this video.

.

Fabulous machine, in a great workspace

< drool >

But I'm a little surprised that he hasn't discovered the merits of a decent ratchet & flank-drive sockets.

MichaelG.

Ian Skeldon 208/07/2018 16:58:56
226 forum posts
19 photos

I was even more surprised to see him brush swarf away with his bare hands, is this man a god?

Nice clamps though, although his machining skils and tooling means that he probably made them, just because he could, I'm somewhat envious.

mechman4812/07/2018 09:51:53
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1984 forum posts
359 photos

Nice clamps. He certainly knows how to use that vertical boring machine. I guess this is the same guy that made that very large vice I saw on You Tube. not a lot of activity going on in that factory, maybe he was working in his own time on a weekend maybe?

George.

thaiguzzi12/07/2018 10:44:54
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388 forum posts
104 photos
Posted by Ian Skeldon 2 on 08/07/2018 16:58:56:

I was even more surprised to see him brush swarf away with his bare hands, is this man a god?

Nice clamps though, although his machining skils and tooling means that he probably made them, just because he could, I'm somewhat envious.

Concur, great vid, great component finish.

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