M.B. Naegle
Diamond
- Joined
- Feb 7, 2011
- Location
- Conroe, TX USA
I was doing some QC tool holder sizing for a couple of our lathes and while updating some information on our machines post dimensions, was looking at the old list of Lantern style holders by Armstrong and Williams showing which holder systems go well which which swings of lathe, and got to wondering if there is a similar sizing reference for planers and shapers? Looking at the old Armstrong/Williams catalogs, they size the tool holders made specifically for shapers/planers (gang holders and indexable holders) by the size of the bit, but there's nothing to tell you which holder works best with which machine (that I see). Is it purely job specific?
For my Whitcomb Planer (30"x30"x10' belt drive), I've been rounding up holders that are roughly a #5 holder (in lathe terms), which can hold a 5/8" bit, but the clapper has lots more room. In terms of broad nose single point cutters, I'd think you could do a pretty wide swath with a 5/8" bit, even when it's ground with a radius. With hand ground lathe bits I typically go for the smallest bit I need for whatever form I'm grinding, but often find that 1/4" or smaller go to the 9" lathe, 3/8" to the 10", and 1/2-5/8" for the 14" or bigger. Is there any similar sizing protocols to consider for shaping and planing? On my plainer there isn't a way to change speed/feed**** other than how you initially set up the overhead pulleys, but do material and horsepower play into it like they do on other machine tools?
****On edit: There's no speed variation, but you can change the step-over, IE feed rate via adjusting the ratchet mechanism.
For my Whitcomb Planer (30"x30"x10' belt drive), I've been rounding up holders that are roughly a #5 holder (in lathe terms), which can hold a 5/8" bit, but the clapper has lots more room. In terms of broad nose single point cutters, I'd think you could do a pretty wide swath with a 5/8" bit, even when it's ground with a radius. With hand ground lathe bits I typically go for the smallest bit I need for whatever form I'm grinding, but often find that 1/4" or smaller go to the 9" lathe, 3/8" to the 10", and 1/2-5/8" for the 14" or bigger. Is there any similar sizing protocols to consider for shaping and planing? On my plainer there isn't a way to change speed/feed**** other than how you initially set up the overhead pulleys, but do material and horsepower play into it like they do on other machine tools?
****On edit: There's no speed variation, but you can change the step-over, IE feed rate via adjusting the ratchet mechanism.
Last edited: