rotary dumper base:
The base needs to hold the dumper and allow the 'coal' to fall through unimpeded... basically not have a base - just walls supporting the dumper.
rotary dumper gears:
Gears need to be able to turn the dumper without getting clogged from the 'coal' and not pull the dumper off its rotation. a motor-servo turning the gears. Bearings or wheels supporting the dumper in its rotation - also not to be clogged with 'coal'
rotary dumper clamps:
A rotary dumper needs a motor to move the clamps that hold down the car when rotated. The springs are too weak, a servo is too- it will 'rebound', the clamps need to be able to move UP high enough for a locomotive to drive through and DOWN strongly enough to actually hold the car when upside down.
Train Positioner: a cart on rails that holds a micro servo arm, moved by wires on a pulley or a servo on the cart driving against a gear rack. Great parts source : McMaster-Carr Supply Company
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Hi there,
ReplyDeleteI've looked at your videos on youtube with your dumper. It's very cool, but just wanted to put in my 2 cents worth... the springs are good enough to hold the cars whilst they are dumping - just don't flip the car a full 180 degrees. Tap into youtube, and look up "martyhb1" in the search, and you'll find my rotary dumper videos (I've automated one too)
See if any of that is any help - if you have any questions etc, then let me know - I'm not here to tell you that what you've done is wrong or anything - I really like you positioner! But if you need any ideas - especially on the lifting of the clamps to get to locomotive height, then let me know.
Keep up the good work though - I'm sure these things were made to be animated - it's just a pity that Walthers didn't make a working version to start with!!
Cheers,
Marty