Decided to make my own
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- Posts: 3803
- Joined: Wed Feb 21, 2007 9:21 pm
- Location: Vallejo California
Decided to make my own
For a while I have been considering getting a large shell milling cutter for speedy machining when lots of stock need to be removed.
I won this shell-mill at eBay and took the challenge to make my own holder.
Here is a video of the rough turning and pictures of the machining process to finish.
http://www.youtube.com/watch?v=ex1IT9_nJaI
I won this shell-mill at eBay and took the challenge to make my own holder.
Here is a video of the rough turning and pictures of the machining process to finish.
http://www.youtube.com/watch?v=ex1IT9_nJaI
There are no problems, only solutions.
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Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa
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Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa
- mechanicalmagic
- Posts: 1431
- Joined: Sun Nov 04, 2007 12:11 am
- Location: Pleasanton, CA Land of perfect weather
Jose,
One of the first jobs when I got my lathe was R8 chuck adapters for the mill. As you know, with a limited quill travel sometimes it's near impossible to do some jobs without moving the knee. So I made three lengths.
Long one for spot drilling, med for reg drills and short for reduced shank. I don't use the long reach very often, but sure nice when needed.
One of the first jobs when I got my lathe was R8 chuck adapters for the mill. As you know, with a limited quill travel sometimes it's near impossible to do some jobs without moving the knee. So I made three lengths.
Long one for spot drilling, med for reg drills and short for reduced shank. I don't use the long reach very often, but sure nice when needed.
Every day I ask myself, "What's the most fun thing to do today."
9x48 BP clone, 12x36 lathe, TIG, MIG, Gas, 3 in 1 sheetmetal.
9x48 BP clone, 12x36 lathe, TIG, MIG, Gas, 3 in 1 sheetmetal.
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- Posts: 3803
- Joined: Wed Feb 21, 2007 9:21 pm
- Location: Vallejo California
Holder
Glenn, yes, is my next project.
I already made one a while ago, this one has different dimensions and is a straight knurl about .115" wide.
Dave, ingenuity is king!!
I already made one a while ago, this one has different dimensions and is a straight knurl about .115" wide.
Dave, ingenuity is king!!
There are no problems, only solutions.
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Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa
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Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa
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- Posts: 3803
- Joined: Wed Feb 21, 2007 9:21 pm
- Location: Vallejo California
Test
Finally got to do a real job making Hummingbird parts, rouging out quickly excess material.
Got a little bit of chatter, but I could not go slower. That is the slowest speed I have.
This video shows the operation taking .250" off.
I think that for a small MT2 spindle is not bad.
http://www.youtube.com/watch?v=BiEhIWbKb28
Got a little bit of chatter, but I could not go slower. That is the slowest speed I have.
This video shows the operation taking .250" off.
I think that for a small MT2 spindle is not bad.
http://www.youtube.com/watch?v=BiEhIWbKb28
There are no problems, only solutions.
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Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa
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Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa
'Kinda like this one
http://www.metacafe.com/watch/1219866/h ... slab_mill/
Check out the guy with the broom trying to keep up
Glenn
http://www.metacafe.com/watch/1219866/h ... slab_mill/
Check out the guy with the broom trying to keep up
Glenn
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- Posts: 3803
- Joined: Wed Feb 21, 2007 9:21 pm
- Location: Vallejo California
Big bites
Delicious !!
I noticed lots of chatter
At Jorgensen Steel we had a 18 feet plate vertical boring mill.
(I always refused to run it)
This machine will create huge curled chips about .5" wide by .12" thick curled into a perfect spiral to about 8" in diameter before they broke and fell.
I estimate that each chip could have been a pound and a half.
One of those on you head and you're out.
I noticed lots of chatter
At Jorgensen Steel we had a 18 feet plate vertical boring mill.
(I always refused to run it)
This machine will create huge curled chips about .5" wide by .12" thick curled into a perfect spiral to about 8" in diameter before they broke and fell.
I estimate that each chip could have been a pound and a half.
One of those on you head and you're out.
There are no problems, only solutions.
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Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa
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Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa
I need to get some pics of the 300 Kwik Switch 2" shell mill arbor I made a few months back. Not a matter of can't afford one. I don't think they made them that big. I have some huge 8" carbide insert facemills I am going to use as flycutters on my bridge mill. I have a smaller facemill that produces a rainbow mirror finish, but it's only 3" or so in diam. I want to be able to reach all the way across larger parts.
18x72 L&S, Fosdick 3ft radial, Van Norman 2G bridgemill, Van Norman #12, K. O. Lee T&C grinder, Steptoe-Western 12X universal HS shaper, 16spd benchtop DP, Grob band filer, South Bend 10L
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- Posts: 3803
- Joined: Wed Feb 21, 2007 9:21 pm
- Location: Vallejo California
Two keyways
With the holder horizontal, I used a .125 end-mill. That give me a right angle corner next to the .750" Dia. where the cutter goes in.J Harp wrote:Nice job Jose. How did you make the pockets for the drive keys?
The key had to have two .062" radius corners.
There are no problems, only solutions.
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Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa
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Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa
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- Posts: 3803
- Joined: Wed Feb 21, 2007 9:21 pm
- Location: Vallejo California
Nope, I did it with the compound rest after several adjustments.JimGlass wrote:Hey, that is pretty nice.
Did you turn the taper by offsetting the tail-stock?
Jim
Kind of a pain.
It would be nice to have an off-set devise for the tail-stock that will attach to the Morse taper, so one can attach and remove quickly without having to re-set the center on the tail-stock.
Next project maybe
There are no problems, only solutions.
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Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa
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Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa