Would adding this bed extension to a Jet 1642 be possible?

Discussion in 'Woodturning Discussion Forum' started by Andrew McCarn, Oct 18, 2017.

  1. Andrew McCarn

    Andrew McCarn

    Joined:
    Sep 11, 2017
    Messages:
    6
    Location:
    Lexington, NC
    Hey everyone,

    As of now I own a 1642. Love the lathe but the capacity is starting to get to me...

    I recently got a hold of some gorgeous sycamore that is around 18"-20" in diameter. Obviously I would hate to have to cut that down to the 15" diameter for bowls. I was just wondering if you all think it would be possible to attach this bed extension to it?

    https://www.woodturnerscatalog.com/p/110/6713/JET-1640-20"-Bed-Extension-w-Post

    Jet recently came out with their new line of lathes and made outboard turning possible with this. I figured all I would have to do is tap the holes where it would go but maybe I am over simplifying it?

    Anyone with any experience with this kind of thing? I mean for $300, it comes in cheaper than a stand alone outboard stand.

    Thanks!
     
  2. Gary Beasley

    Gary Beasley

    Joined:
    Sep 12, 2017
    Messages:
    33
    Location:
    Marietta, Georgia
    Changing the length of the bed doesn't get you any more room for a larger diameter bowl, just a longer spindle. You would need a riser for both the head and tailstock same way you do for a bandsaw or either a rotating headstock like the DVR I have or sliding headstock like the big powermatics have to let the bowl hang off the bed.
    Does your lathe have a means to slide or rotate? If it does you dont need the extension.
     
  3. Andrew McCarn

    Andrew McCarn

    Joined:
    Sep 11, 2017
    Messages:
    6
    Location:
    Lexington, NC
    The head stock slides. I guess I should've stated it better but yes, my question is if I slide the head stock to the end, mount this extension lower than the bed, would that be possible. It comes with the tool rest extension so this bed extension is made for outboard turning on the new Jet lathes, just not the 1642.
     
  4. hockenbery

    hockenbery AAW Advisor Staff Member

    Joined:
    Apr 27, 2004
    Messages:
    4,304
    Location:
    Lakeland, Florida
    Home Page:
    If you have a place to bolt this bed lower it can give extra swing.
    Do you have a lower set of holes on your legs?
    Craft supplies can tell you if it will fit.

    I have an outboard bed on a General that bolts on 2” lowerthan the inboard lathe.
    This give 24” on the outboard and 20” on the inboard
     
    Bill Boehme likes this.
  5. john lucas

    john lucas

    Joined:
    Apr 26, 2004
    Messages:
    5,822
    Location:
    Cookeville TN USA
    I'm asumming you want to mount the bed extension lower on the legs so you can move the headstock and turn larger work. I have been looking at doing the same thing on my 3520A. It does not have holes or the thicker casting to take the lowered bed extension. What I have been looking at doing and might work on your lathe is to fasten a steel plate on the inside of the leg, probably with screws. Then drill and tap all the way through the legs and steel plate and fasten the bed extension to this. Be aware that you will need to make a height adaptor for your banjo to get the tool rests up far enough. You could buy the Powermatic banjo adaptor if you mount your bed extension low enough to be able to use that.
     
    Bill Boehme likes this.
  6. Andrew McCarn

    Andrew McCarn

    Joined:
    Sep 11, 2017
    Messages:
    6
    Location:
    Lexington, NC
    @john lucas

    Yes this is exactly what I want to do! Thats what I was really wondering is if the legs would be strong enough because as of now there is no where to bolt on the bed extension so I would have to drill the holes. Thank you for the steel plate idea too! Luckily this extension comes with a banjo adapter for outboard turning.
     
  7. Andrew McCarn

    Andrew McCarn

    Joined:
    Sep 11, 2017
    Messages:
    6
    Location:
    Lexington, NC
    @hockenbery

    Sadly, my lathe doesnt have a place to bolt on the extension for outboard turning. I really just want to take this extension and make it a frankenstein lathe and just drill the holes myself so I can bolt it on. :p
     
    Last edited: Oct 18, 2017
  8. Raul McCai

    Raul McCai

    Joined:
    Oct 29, 2014
    Messages:
    416
    Location:
    nj

    What he said~!!! Plus the manual for that model advertises a free standing turningn stand which I should expect means that you can re position the head to it suspends work off the lathe making the floor your theoretical maximum radius limit
     
  9. Tom Albrecht

    Tom Albrecht

    Joined:
    Feb 8, 2014
    Messages:
    409
    Location:
    Midwest USA
    If you have the experience and knowledge of hand drilling and tapping I'd say go for it.
     
  10. john lucas

    john lucas

    Joined:
    Apr 26, 2004
    Messages:
    5,822
    Location:
    Cookeville TN USA
    When I look at the 3520B there is a little extra thickness built into the casting on the legs and a milled flat surface on the outside. I can probably grind the flat surface on the outside. If I must I'll epoxy some metal on and then grind this flat. Then I will put the metal plate on the back. I will drill and tap through all the metal so it's not dependant on the epoxy. I've planned this out pretty well but just haven't had the time to actually do it. Plus I want to buy another bed extension. I have one but I like having that on the lathe because it gives me the extra length. I'll install the other bed extension on the tailstock end down low. Then I will have 2 bed extensions, one on each end if I need a really long turning and can lower one of them down when I need something with more than 20" of swing.
     
  11. Gary Beasley

    Gary Beasley

    Joined:
    Sep 12, 2017
    Messages:
    33
    Location:
    Marietta, Georgia
    A floor standing tool rest would get you in business without any additions. You just wouldn't have use of a tailstock. Using a faceplate this wouldn't be much of a problem, then build a donut chuck to finish the bottom.
     
  12. john lucas

    john lucas

    Joined:
    Apr 26, 2004
    Messages:
    5,822
    Location:
    Cookeville TN USA
    I tried a floor standing tools rest. I didn't like it. Mine was homemade but very heavy. It tended to move and pull the tool into the work. It wasn't bad on light cuts but roughing cuts were almost dangerous. With a fixed tool rest you can get really aggressive on roughing cuts with no problem. That's why I'm looking at the bed extension mounted to the lathe. that and I"m going to make a riser block for the tailstock so I use it at least on shallower pieces.
     
  13. Gary Beasley

    Gary Beasley

    Joined:
    Sep 12, 2017
    Messages:
    33
    Location:
    Marietta, Georgia
    I can see your point. A floor rest would really need a strut you could attach to the lathe to stablize it. More complications than most folks want to deal with.
     
  14. john lucas

    john lucas

    Joined:
    Apr 26, 2004
    Messages:
    5,822
    Location:
    Cookeville TN USA
    VicMarc does exactly that. Their floor standing rest has an adjustable arm that fastens to the lathe and the stand. It's massive and would lock the stand really firmly. If I was going for a free standing tool rest that is what I would do.
     
  15. charlie knighton

    charlie knighton

    Joined:
    Jan 20, 2006
    Messages:
    1,531
    Location:
    virginia
    I have used blocks of wood and .....6 x 6 and 2 x 4....between powermatic free standing tool rest and back legs of jet 1642......it works well for nick agar type multi-axis turning....I imagine it would work with large bowls......a trip to Canada would be useful for blanks.....
     
  16. Bill Boehme

    Bill Boehme Administrator Staff Member

    Joined:
    Jan 27, 2005
    Messages:
    8,125
    Location:
    Dalworthington Gardens, TX
    Home Page:
    Similar situation for the Robust AB. The outboard rest has two large joints that give the outboard rest a lot of maneuvering room.
     
  17. Bill Boehme

    Bill Boehme Administrator Staff Member

    Joined:
    Jan 27, 2005
    Messages:
    8,125
    Location:
    Dalworthington Gardens, TX
    Home Page:
    I have read on the Lumberjocks forum that some Jet 1642 owners have used the Powermatic bed extension mounted a couple inches down on the legs and using steel backing like John suggested. The Powermatic extension is taller so it would have better bending moment support than the Jet. I've never actually seen this so take it with a grain of salt.
     
  18. john lucas

    john lucas

    Joined:
    Apr 26, 2004
    Messages:
    5,822
    Location:
    Cookeville TN USA
  19. Gary Beasley

    Gary Beasley

    Joined:
    Sep 12, 2017
    Messages:
    33
    Location:
    Marietta, Georgia
  20. charlie knighton

    charlie knighton

    Joined:
    Jan 20, 2006
    Messages:
    1,531
    Location:
    virginia
    20171020_085043.jpg

    20171020_085102.jpg

    Just need outboard tool holder
     
    Last edited by a moderator: Oct 20, 2017
    odie likes this.

Share This Page