Josiah Brown Posted September 25, 2015 Report Share Posted September 25, 2015 I've been turning bowls recently and I've had too much trouble finishing up the bottom of the bowl (where the chuck expands). I know that a longworth chuck will get the job done but i would prefer not to spend so much money on one. Is there another way of reverse mounting a bowl that is cheaper? Quote Link to comment Share on other sites More sharing options...
Tom Cancelleri Posted September 26, 2015 Report Share Posted September 26, 2015 Cole jaws, longworth chuck, make a jam chuck, finish the bottom first. If you are using dovetail jaws, you can turn the bottom so there is a rim with a recess that the dovetail jaws can mount to, then turn the rest of the bowl. Quote Link to comment Share on other sites More sharing options...
Mike M Posted September 28, 2015 Report Share Posted September 28, 2015 I have tried the cole jaws, then built a longworth chuck. Both worked well (the cole jaws were limited size).Then I built a vacuum chucking system and haven't used the mechanical jaws since.Vacuum is faster, easier and can hold natural rim bowls with ease. I bought the pump on ebay, made my own coupler and made an assortment of heads from a mixture of PVC and plywood. Total cost of the system was about $200.If you are interested, the cole jaws are for Nova chucks and the longworth fits on a 1 1/4" spindle. I'd be happy to sell either or both. Quote Link to comment Share on other sites More sharing options...
Josiah Brown Posted September 29, 2015 Author Report Share Posted September 29, 2015 I have tried the cole jaws, then built a longworth chuck. Both worked well (the cole jaws were limited size).Then I built a vacuum chucking system and haven't used the mechanical jaws since.Vacuum is faster, easier and can hold natural rim bowls with ease. I bought the pump on ebay, made my own coupler and made an assortment of heads from a mixture of PVC and plywood. Total cost of the system was about $200.If you are interested, the cole jaws are for Nova chucks and the longworth fits on a 1 1/4" spindle. I'd be happy to sell either or both.how much do you sell the longworth for? Quote Link to comment Share on other sites More sharing options...
duckkisser Posted October 4, 2015 Report Share Posted October 4, 2015 i bought some longworth jaws both for turning bottoms and shapes that are not round. for example recently i turned a round cove in the bottom of a rectangular board. also i turned a bowl in a burl that i left the rough outside shape of the turning. here it is https://featheredwoodworking.wordpress.com/2014/12/13/inlay-ed-walnut-burl-dish/ Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.