Do you think a serpentine belt style would have enough surface area not to slip? A couple car pulleys and a short belt...?
Thought about that... but in order to get slow RPM I need a pully roughly 1.5" at the motor and I don't think they made anything that small for a car. I measued an Alt. pully and it's almost 2.5".Do you think a serpentine belt style would have enough surface area not to slip? A couple car pulleys and a short belt...?
2 belt system.in sure there are idlers that small.
is it a dirrect motor - chuck single belt system or is it a 2 belt motor-idler-chuck system?
rough up the pulleis with some nasty sander paper/pads....
Thanks for the math.with a horse and a half drill press just run some #50 chain and set it for the slowest speed you think you will need and be done
the formula for figuring out your spindle speed is 100( surface feet per minute ) X 4 divided by Drill diameter
so a 3/4 inch drill bit should be 533 rpm.....
take your motor RPM ( 1750? ) and divide your drive into your driven sprockets to determine the correct ratio ( try 3.5:1 or 35 teeth /10 teeth )
edit: only a half horse? maybe #40 chain would be better
5/8-1" and hole saws for doing dimple die work.Just curious how big of holes are you drilling with that drill press??
Then again for the price what do you really expect.
Does that come free with my new plasma table... I gotta' call you latter to finish that deal anyway, I'll pressure you then. :flipoff2:You could try a tensioner or larger diameter pulleys. Hell if you want we could probly whip you up a set of stepdown 6 rib serpentine pulleys.
I'm just trying to get by. I can get a chain and the sprockets from my buddies motorcycle shop for next to tothing... (used pull off stuff) and was asking if anyone had done it. I know it wont bend the shaft or anything... the moter may stall but it doesn't have the power to do any damage to its self.Your drill press is too small, end of story.
If you increase the holding power of the belts, or go to a chain drive, it will bend shit the first time a drill bit or hole saw catches. Most likely the motor spindle.
Keep that one around for smaller stuff and look into a larger industrial drill press or a mill.
FWIW, I have at least one alternator pulley that is that small from when I built my custom accessory dress. That said, building up a stack of alternator pullies is pretty hack, and you might do better just turning down a hunk of aluminum round stock to do what you need. See if MC is serious... but a bigger drill press is probably cheaper unless you have free shop time.Thought about that... but in order to get slow RPM I need a pully roughly 1.5" at the motor and I don't think they made anything that small for a car.