Members onathread Posted March 11, 2017 Author Members Report Posted March 11, 2017 brmax...just noticed you're in Missouri as I am! Have a nice snowy day! ) Quote
Members JimTimber Posted March 11, 2017 Members Report Posted March 11, 2017 (edited) Going from a 3" to a 2.5" or whatever the smallest motor pulley is will reduce the surface area of the belt on the pulley and reduce the belt radius to cause more wear on the belt (it has a rather sharp bend to it now). Granted, I'm not used to dealing with belt driving things under 5hp, but I wouldn't go smaller on the motor pulley before seeing what the system behaves like with the speed reducer. I'm at about a stitch a second with my current setup on the Singer 211G, going to 3:1 should drop that down to a stitch every 3 seconds, and that's plenty slow enough. The 4:1 reducer that came with my 441 runs a bit slow at it's lowest speed and could benefit from a little higher starting speed, but I haven't looked into changing that setting just yet. What's nice about using a servo with a reducer is that you can then speed up the motor on the top end and get your full range of stitches per minute back. Running the motor at 5000rpm is going to get you close to the 1750 it used to have with the clutch motor prior to the reduction. Edited March 11, 2017 by JimTimber Quote
Members onathread Posted March 11, 2017 Author Members Report Posted March 11, 2017 Thank You! I'm really looking forward to the speed reducer! ) Quote
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