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Used and abused Robin bench vise

Darren said:
I did a 12x14mm insert the other day. started with a cheese grade 14mm bolt and drilled the threaded end out and tapped 12x1.25mm. Threaded it into the part and trimmed it flush with a zip disk. Next time i'll take pics. Took 5 mins to make. Nearest auto parts store is 25mins from my place.
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Do you put the external threads in a nut and chuck on that or do you chuck on the unthreaded shaft of the donor bolt?
 
So I've got jaws cut out and drilled but I want to add angled serations to them. I don't have a horizontal mill and I don't have the same style cutter as Keith Rucker in his youtube video shows (I can't seem to link to that video). But I think if I put my milling head at 45° and then use a swivel base on my mill vise I should be able to accomplish the job.
My question is what to use as the cutter. I have end mills (that's what I think is best) but have slitting saws, module gear cutters that might work and I also have a single carbide insert end mill. The insert end mill has nice length to it that might be helpful but the insert i have for it has a generous radius tip that I don't think would be appropriate. Other suggestions or ideas? 20241108_131600.jpg
 
DPittman said:
So I've got jaws cut out and drilled but I want to add angled serations to them. I don't have a horizontal mill and I don't have the same style cutter as Keith Rucker in his youtube video shows (I can't seem to link to that video). But I think if I put my milling head at 45° and then use a swivel base on my mill vise I should be able to accomplish the job.
My question is what to use as the cutter. I have end mills (that's what I think is best) but have slitting saws, module gear cutters that might work and I also have a single carbide insert end mill. The insert end mill has nice length to it that might be helpful but the insert i have for it has a generous radius tip that I don't think would be appropriate. Other suggestions or ideas?View attachment 54017
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Use your shaper....... :rolleyes:
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DPittman said:
Are those just spotting drills? I have some but mine don't have the pretty rainbows.
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They actually come under a few names. I know for sure they chamfer on a single edge quite well, but AFAIK also used in cnc router/milling operations where the full View attachment 54064vee form is ploughed along a line. Like an EM one side will be climb milling the other not so single pass finish may not be quite the same, but I have run them both directions on finishing pas. I am also abut to test them for blind 'spotting' because they make hem in angles that lend themselves to say 135 drills. My 90 & 120-deg tip profiles don't look appreciably different than what I bought as spotting.
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What the heck happen to my text that went along with the jaws pics? I must have deleted it before posting...

I got a couple of jaws made, they are not perfect as I made mistakes but I think they will be adequate for a welding bench vise.
Now the question is whether or not I'm going to shell out the bucks for a can of Cherry Red/Kasenit. I'd like to harden the gripping surface at least but that stuff appears to be pretty pricey.
 
Darren said:
Those look really nice!
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Ya from distance in a grainy photo.
If there is a way to screw up I will do it and if there isn't a way I will invent one.

First two passes I got mixed up with whether I should be using X or W axis for cutting stroke. DOH! You can see that screw up in the top left corner of one of the jaws.

The other screw up was from lack of planning. I should have lightly milled the surface of both jaws together before cutting serations and then cut serations on both slabs at once. I was afraid of messing up so I did one at a time. I cut the pieces from a slab in my band saw and wasn't thinking about milling serations at that time so I just cut them to as close as thickness I could measure with a combination square. I simply placed each jaw on parallels in milling vise thinking they were same thickness. Purely by luck they were within .010" of each other but my serations are only about .025" deep so that difference shows in depth of my cuts. Live and learn.
 
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