Gallery, Projects and General > The Design Shop
Leadscrew Clutch Options?
velocette:
Hi Sparky
The angle on the dogs is from the shaft centre line with negative rake of 5 degrees tending to disengage the clutch then an over centre locking is required or a spring and a lockout latch.
manxmodder
""Also I can't see how a carriage stop could be used with the lead screw half nuts engaged as when the carriage meets the stop the lead screw half nuts would come under destructive strain.....OZ"".
It doesn't a 1/20 hp gearmotor with poly vee belt with just enough tension to move the carriage hits the stop and the belt slips.
Eric
chipenter:
--- Quote from: velocette on October 15, 2015, 12:53:25 PM ---Hi Sparky
The angle on the dogs is from the shaft centre line with negative rake of 5 degrees tending to disengage the clutch then an over centre locking is required or a spring and a lockout latch.
manxmodder
""Also I can't see how a carriage stop could be used with the lead screw half nuts engaged as when the carriage meets the stop the lead screw half nuts would come under destructive strain.....OZ"".
It doesn't a 1/20 hp gearmotor with poly vee belt with just enough tension to move the carriage hits the stop and the belt slips.
Eric
--- End quote ---
My carrige stop disengaded the dog clutch stopping the lead screw , and could be adjusted to 0.001" every time .
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