Wow! What a great idea! Love it! I could put one on top of the arbor press, with an attachment sort of like the tailstock dial indicator adapters...Here's a simple one for ya' I made a depth gauge for my shop press using a pointer and a 6" scale mounted with magnets. Just gives me some idea of where I'm at and helps when using my brake to make more than one part at the same angle.
I assume you are asking about my depth gauge. Yes, I use it regularly. I have a digital Mitutoyo, 0 to 6" and a vernier Starrett 0 to 6", and I use my modified indicator the most, especially on holes from 0 to 1". It's quick and just as accurate as the other gauges.Looks good. How have you used it so far?
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Here is a definition from Slater Tools. They have some videos too.That's very cool. I've never seen a rotary broach in action. Is it a vibratory fore/aft motion that cuts the broach?
Jbolt, That is a very clean and slick looking design! Can you elaborate on the tool with some sizes and maybe part numbers to the bearings?I thought the commercial rotary broach holders were priced way too high for what they are so I rolled my own. Body and tool holder from scrap 1018 crs, modified MT3/JT4 drill chuck arbor $8, ball and thrust bearings $30. I still need to make a straight arbor for using in the mill. Cutter in picture is 1/2" hex from Polygon. I plan on making my own as soon as I get my furnace built. So far I have used it to hex broach steel pinion gears.
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It produces a wobble because the longitudinal axis of the cutting tool is off by a degree or so compared to the axis of rotation of the work being cut.OK, so it's very similar to a rotary hammer drill in action. What I want to know is how is he producing the wobble?
I know that now. I was so fascinated by it that I'm actually building one now. You can read about it here: http://www.hobby-machinist.com/showthread.php/19945-Shop-made-Rotary-broach-holder-and-broachesIt produces a wobble because the longitudinal axis of the cutting tool is off by a degree or so compared to the axis of rotation of the work being cut.
When the work rotates ( or vice versa with the cutting tool) the cutting tool is carried with it but since the tool center line is not square with the work a rocking motion is produced whereby the cutting edges of the tool move in and out in a reciprocating motion against the work.
It's just like the tool edges are chiseling the work in a rapid succession.
I hope I have explained it simple enough.
Hi McGuyverI've had a little brass hammer for many years that someone made long ago. It is definitely used and I always think about who made it and what they were thinking when they made it. It's a good feeling to know that something you make will last for generations, so with that being said, I decided to make my own version of an aluminum / brass inserted hammer that hopefully someone 40 years from now will appreciate. Very basic, but I enjoyed it very much.
That's definitely a beautiful piece of work, and your pride is justified. I've had my X2 for a number of years, and one of the first things I did was to dig through my "slush pile" of old wrenches to find one that fit the drawbar. I shortened it to about 6 1/2", just right to tighten the R8 collets sufficiently without going "farmer tight."I completed my drawbar wrench/hammer for my X2 mill today. I’m quite pleased with it. It’s not perfect, but I’m proud of it. It was made from a store bought deep socket, and brass and aluminum I inherited in Dad’s workbench. This project was based on and inspired by the Soft Faced Hammer Project on the Projects in Metal Forum.
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