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  #1  
Old 01-06-2019, 09:35 PM
rcrawford rcrawford is offline
Cobra Owner
 
Join Date: Dec 2011
Location: Alberta
Posts: 2,277
Default Using a lathe beside my Cobra

In another thread I talked about taking the recoil off my cobra and setting my Delta lathe in its place. Pictures or video was requested, so I finally shot some crappy video on my iPhone and made a youtube!

https://www.youtube.com/watch?v=IuiazXmSA4M

The video shows the making of a leg for a guitar stool/stand that I was commissioned to make. Using the lathe is much quicker than the recoil, gives a smoother cut, and allows me to easily sand on the lathe at 1200rpm which saves a lot of time.

My Delta lathe has a 3phase motor with a VFD, so I'm able to set the speed with a dial. It also has a manual indexer at 15 degree increments, so I can lock the spindle in place at different angles. I also made my own indexer so I can use custom angles, which I needed when I made a copy of Hans Wegner's round chair and needed the mortises to be 84 degrees apart for the front legs, and 96 degrees apart for the back legs.
Attached Images
File Type: jpg legs.jpg (43.9 KB, 84 views)
File Type: jpg guitar stool.jpg (57.2 KB, 80 views)
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Russell Crawford
Cobra 408 ATC with recoil
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www.cherryleaf-rustle.com
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  #2  
Old 01-07-2019, 02:07 AM
ScottM ScottM is offline
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wow! Now that is some machining magic!
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  #3  
Old 01-07-2019, 05:47 AM
moell54 moell54 is offline
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Smile Very Creative

Thx Russell for video...ingenious and thought provoking.
Aubrey
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Panther 404 (Nov '17)
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  #4  
Old 01-07-2019, 08:10 AM
mikeacg mikeacg is offline
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Join Date: May 2010
Location: Newberry, MI
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You are rockin' it Russell! Gave me some good ideas for things I want to try now...
(And don't let Gary bully you!!! Ha ha ha!)

Mike
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Stinger 1 with Spindle and Recoil
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  #5  
Old 01-07-2019, 08:33 AM
neal_meyers_jr neal_meyers_jr is offline
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Location: Guyton, Ga
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Cool

As always very nice Russ.
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  #6  
Old 01-07-2019, 10:32 AM
Jim Becker Jim Becker is offline
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Location: SE PA
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That's an excellent adaptation for the kind of job you were doing! Thanks for providing the video.
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SR-44 (2018), 1.7kw spindle, Performance Premium, USB, Keypad, T-Slot table (y-axis configuration), WinCNC, VCarve Pro upgraded to Aspire

Non CNC stuff...

SCM/Minimax - slider/JP/BS
Festool "a good collection"
Stubby - lathe
Oneida Cyclone
more...

Retired from full time work in the telecom industry 9/2017
Commission work for equestrian tack storage and other custom furniture and cabinetry
Located Bucks County PA
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  #7  
Old 01-07-2019, 03:24 PM
mike.davison mike.davison is offline
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Join Date: Jul 2015
Location: Bolton, Massachusetts
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Default

Thanks for sharing the video. Interesting approach. Certainly an efficient way to accomplish these tasks.
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Stinger II 4x4, Recoil, spindle, FTC, Aspire, Sketchup
http://www.DavisonWoodworks.com/
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  #8  
Old 01-11-2019, 01:26 PM
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Gary Campbell Gary Campbell is offline
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Join Date: Dec 2012
Location: Marquette, MI USA
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Now that Russell's post has settled back in, and I am glad that it has, someone should explain the differences between a CNC wood lathe and a 4th axis rotary fixture.

As Russell has stated he removed his 4th axis rotary (a.k.a.: Recoil Ornamental Lathe) and replaced it with a wood lathe, in effect giving him CNC lathe abilities. The issue as I see it is that many users, especially pre purchase, confuse the cutting actions of the two.
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  #9  
Old 01-11-2019, 02:55 PM
Jim Becker Jim Becker is offline
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I agree, Gary...and we've seen multiple examples of that confusion in both pre- and post-purchase threads/commentary. I do like Russell's solution to do what he wants to do. The indexing side of things isn't as elegant nor does it have the precision resolution of the Recoil, but for his purpose, it's a nice way to handle things.
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Jim Becker

SR-44 (2018), 1.7kw spindle, Performance Premium, USB, Keypad, T-Slot table (y-axis configuration), WinCNC, VCarve Pro upgraded to Aspire

Non CNC stuff...

SCM/Minimax - slider/JP/BS
Festool "a good collection"
Stubby - lathe
Oneida Cyclone
more...

Retired from full time work in the telecom industry 9/2017
Commission work for equestrian tack storage and other custom furniture and cabinetry
Located Bucks County PA
http://bvww.us
bvww.etsy.com
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  #10  
Old 01-11-2019, 03:35 PM
Charlie_L Charlie_L is offline
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Join Date: Mar 2012
Location: Wisconsin
Posts: 1,431
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When I watched Russell's work, I felt it really helps to explain exactly what Gary is saying. The difference between the two variations of tools. I think this will especially help the pre-purchase expectations.
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Stinger II, 48 by 48, 1.7 kW Spindle, FTC + Laser + Recoil + Vacuum, July 2012
WinCNC 2.5.03, Aspire 9, PhotoVCarve, Windows 7 Pro SP1
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