Posted by Bricky 18/11/2021 12:31:24

I couldn't stand to scrap my late friends project of a small shaper,he had 80% finished it ,but
unfortunateley for me he used two sets of plans.There are no gears involved
in his construction and it seems he was relying in the scotch crank driven
I think direct from the motor.I think a lot of reduction will be needed and
advice on the speeds of these small shapers would allow me to work
out the correct pulleys and intermediate pulley for reduction.

Frank
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I have a part built shaper of a similar size to the Gingery shaper and
it is based on the Gingery machine.
I changed the drive system to use toothed belts a 5mm htd for the main
drive to the ram and a 1/5 " XL as the primary reduction.
The pulley sizes for the primary reduction are 24 /60 tooth and for the secondary
27/95 tooth.

The reduction at the input pulley seen here in the photo is about 9.96:1
with a 1425 rpm motor about 143 strokes /min, a belt reduction from the
motor of 2 to drop to 71 and 3 to 47 .An inverter drive to fill in the gaps.
I know that you will not perhaps have a similar set up but the ratios that
you need will be similar.

John