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Well thank you sir! That might just be enough engouragement to post my rotary table shortly.
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The broach has to rotate during use in order to work.Originally posted by BCRider View PostKansas City areaComment
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I'd say "Oscillate" would be a better word. If it rotated it would form a round hole which is sort of pointless.Originally posted by Toolguy View PostChilliwack BC, CanadaComment
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It rotates with the workpiece at the same speed, on a different axis.Kansas City areaComment
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Nutate would be a good description. That's like a spinning top will have it's axis slowly rotating about the contact point at the bottom..
"People will occasionally stumble over the truth, but most of the time they will pick themselves up and carry on" : Winston ChurchillComment
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If used in a lathe with the arbor in the tail stock that would sure be the case. I was thinking milling machine or sturdy drill press. I think we're on the same page but were thinking different machines.Originally posted by Toolguy View Post
"Nutate", had to look that up. It's sure the right word and a new one on me. I've always just called it "wobbling"...
Chilliwack BC, CanadaComment
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i think Boat69 should introduce himself and tell us about himself in a different thread.
I will be the first to welcome another S African to the forum. I was feeling lonely here.Comment
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:-) There is an interesting word. I first learned it in 1950 . The RADAR set I was working on used that motion to drive the feed horn to do a circular scan.Originally posted by BCRider View PostIf used in a lathe with the arbor in the tail stock that would sure be the case. I was thinking milling machine or sturdy drill press. I think we're on the same page but were thinking different machines.
"Nutate", had to look that up. It's sure the right word and a new one on me. I've always just called it "wobbling"...
Haven't had much use for the word since. :-)
...lew...Comment
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fps 6 ?Originally posted by lew hartswick View Post“I know lots of people who are educated far beyond their intelligence”
Lewis GrizzardComment
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The tool designed and built by boats67 is excellent and it will no doubt stand heavy use for many years. However, for hobby use or for a one off job it is possible to use a much simpler tool, see:
MikeComment
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No. I think it was something like SP1 something, I believe it was a Navy set. It was in the PA Air National Guard and was probably OLD at that time. GoshOriginally posted by Dave C View Post
I'm lucky to even remember that much. I do remember it had a dark trace projection display along with the A scope. My later work was CPS-5 and
CPS 6B in the Air force. The guard even had an SCR 525 (not sure of the number there). A pair of antennas that looked like bed springs. :-)
...lew...Comment
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I think you're confusing precession with nutation. The motion you describe is precession; the "nodding" motion of the spin axis while precessing is nutation.Originally posted by TGTool View PostRegards, Marv
Home Shop Freeware - Tools for People Who Build Things
http://www.myvirtualnetwork.com/mklotz
Location: LA, CA, USAComment
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made a set of adapters to press the bearings out of Shimano outboard bottom brackets and press in off the shelf cartridge bearings. A) because I'm cheap and b) because I can
making the doodad to press the bearings in - first trepanned a chunk of alu to make some custom spacers for the bottom bracket
then turned down the stub
then parted off from the chunk
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pressing out the old bearings. Used a piece of black iron tube to hold the shell and some random steel as the pusher. One of the shells needed the ID opened up to get to the back of the old bearing
pressing the new bearing in
finished job
collection of parts (inc. new spacers and old plastic ones)
the bearings spin much more freely than the old ones, even when they were new, and I got 10 decent ones (Abec 5 supposedly) off Aliexpress for $16, so I can do the bearings on my other bike and still have 3 sets left over!Comment
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Been hard at work after reading every page of this thread, made a big long list of things to do. Pretty new to this stuff so it's been good learning.
Wooden cart for stock storage:
Speed vise to replace the absurdly dumb handle that came with my import vise:
Lathe micrometer carriage stop:
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