So how wide is this assembly going to be. 4 or 5 sets mean 4 to 5 feet mib width, if grooves are on the edges of the board.
Can you really do that w/o and support in the middle?
If you can live with less width a moulder like woodmaster (assuming material is not too tall) should work with self feeding. You can buy them used and resell them after you are done.
Bit safer with cutters enclosed. Dust collection is not great but that can be immensely improved for a dedicated setup.
Just a thought.
Imran?
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On Jan 28, 2021, at 9:03 PM, TMichael WARD via groups.io <tmikko@...> wrote:
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Hi, I need to build a single purpose tool to cut two grooves about 3/32 deep, 2" wide, and 7-3/4" apart at the inside (for RR ties in a 2-1/2" scale model RR club). ?I'm thinking of using stacked dados on a long shaft with a 7-3/4" spacer. mount with pillow blocks?add pully and motor, ?Bolt to underside of a formica table with holes in it, then slide the plastic ties, say 20 in a frame or sled, over the two blades protruding through the table. ?Sorry, sounds complicated.
My question is, if I go with 8" dados, I need 4 or 5 sets at 5 lbs each maybe 21 lbs. ?What horsepower would it take to start that stack. Needs to go about 3450 RPM.
Or, I could use 6" dados at 5000 RPM, only about 6 lbs.
Thanks, Mike Ward