I'm interested, i thought windscreen motors were not rated to be run all the time?
Anyways post post post!
Regards,
Drew
Please bear in mind I've built this to be as cheap as possible (whilst still being fairly safe).
1 Land Rover front windscreen motor 0.50 the joy of ebay!
1 m 10mm steel studding 2.30
4 25mm OD 10mm ID sealed bearings 3.50
4 plumbing clamps 0.40
~600mm 7mm ID rubber brake hose offcut 2.00
2 80mm "jubilee" hose clips 2.30
2 15mm "jubilee" hose clips 1.00
had the wood/fastners/glue/rubber sheet/electric bits already.
Windscreen wiper motors seem to be reliable even when used for hours on end (I'm sure someone mentioned it earlier in this thread).
It is a well sealed motor that does not get hot after more than an hours use.
The worm drive mechanism and housing etc were ground off, leaving its' shaft exposed
and it was mounted with a large screw
on a few sheets of nice smooth rubber sheet
to damp the vibrations.
Ok, I've been driinking.
I used a section of brake hose for a flexible direct drive to a roller and for the surface of the rollers.
Power supply (2amp) needs to be properly sorted as this is the limitation; getting rather warm and can cut out after a couple of hours.To get the speed correct it's running at about 6-9v, using an old rheostat controller from a heater to restrict input voltage to the transformer.
I'm now testing various free media I can find or make:- marbles, lead alloy filled pipe, might try granite or flint pebbles (not for dry compositions obviously).
Will post a pic soon,
Simon