If you are interested in the following please email Bob Hadley or myself directly and I'll coordinate the list of interested folks:
bphadley@pacbell.net
jjilg@sbcglobal.net
Bob Hadley and I are considering the following. We would like to get extension plates and toolpost risers machined so that we can turn pieces larger than 20" on our 3520a's. See the picture of the extension plate that Bob designed on Yahoo:
http://f2.pg.photos.yahoo.com/ph/bphadley@pacbell.net/album?.tok=phOTtXBBUD1es2Q4&.dir=/2a5b&.src=ph
The plate allows the Powermatic bed extension to be lowered. The toolpost riser is an extension to the toolpost to bring it up to the centerline of your turning.
To amortize out the cost we believe the machinist time would be lower because of setup time if they machined 5-10 sets of riser adapters. We are looking for other folks who would be interested in purchasing the machined risers + shipping cost. Bob and I will price them in our areas and re-post the estimated cost back to the list of interested folks.
The riser would be made of a 2-1/2 inch dia, length of 7075 bar stock. It's an easy part to machine. One end is turned to the tool post dia, the other drilled to the tool post dia. A threaded hole to add a handled bolt to lock it down. The riser just has to be long enough to allow some meat between the hold and the post.
We were thinking the extension plates could be cut at the same time - the machinist could probably cut them with a blowtorch and clean off the edges with a grinder.
....Jeff Jilg :cool2:
bphadley@pacbell.net
jjilg@sbcglobal.net
Bob Hadley and I are considering the following. We would like to get extension plates and toolpost risers machined so that we can turn pieces larger than 20" on our 3520a's. See the picture of the extension plate that Bob designed on Yahoo:
http://f2.pg.photos.yahoo.com/ph/bphadley@pacbell.net/album?.tok=phOTtXBBUD1es2Q4&.dir=/2a5b&.src=ph
The plate allows the Powermatic bed extension to be lowered. The toolpost riser is an extension to the toolpost to bring it up to the centerline of your turning.
To amortize out the cost we believe the machinist time would be lower because of setup time if they machined 5-10 sets of riser adapters. We are looking for other folks who would be interested in purchasing the machined risers + shipping cost. Bob and I will price them in our areas and re-post the estimated cost back to the list of interested folks.
The riser would be made of a 2-1/2 inch dia, length of 7075 bar stock. It's an easy part to machine. One end is turned to the tool post dia, the other drilled to the tool post dia. A threaded hole to add a handled bolt to lock it down. The riser just has to be long enough to allow some meat between the hold and the post.
We were thinking the extension plates could be cut at the same time - the machinist could probably cut them with a blowtorch and clean off the edges with a grinder.
....Jeff Jilg :cool2: