6 Inch, Buck 3 Jaw Scrolling Adjustable Chuck Questions

[Richard White (richardsrelics)]

G'day,

Got a hold of a very nice condition, older 6 inch Buck 3 Jaw scrolling lathe chuck. It does not have a backing plate.
I have a Logan Model 820 with 1 1/2 -8 tpi spindle. This chuck is adjustable to true it up, very nice feature to have.
Has anyone attempted to make a backing plate for something like this?
I found one but for $200+ I would think 30+ years machining I can probably make it on my own, just checking to see if anyone else has attempted this.

Thanks

Richard

 

[mksj]

Shar's sells backing plates for their zero set lathe chucks, and includes one for your spindle specs in a 6". They also sell extra thick backing plates without the machined registration that can be machined down for set tru type chucks. Would be a starting point. Tools4cheap also had a wide selection, but the are going out of business . There are a few other vendors that sell a wide range of backing plates, but you save a lot by buying a generic one and finishing it yourself.
http://www.shars.com/company/online-catalog?p=116

 

[Chipper5783]

mksj - that's what I did. Worked out great. I endorse your recommendation.

Hi Richard, a good topic you raise - see numerous recent posts on chuck back plates (by myself and others). There has sort of been a run on chuck back plate questions (which is great, it means folks are getting into their work shops).

 

[gi_984]

MrPete 222 on You Tube has 3 videos on adjusting a Buck adjustable 3 jaw and making a new back plate for a threaded spindle.