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[ray t]

Hi all.  Hull nearly finished, just gotta sand down a little and then polish/compound it. 

Is there anyone out there that has built a twin hopper (centre of hull like microcat) that could possibly shed some light on how to operate the hoppers efficiently?  I am racking my brain thinking of ways to do it but cant think of anything great at the moment.  I could bodge it, but thats not the idea of this project.  I have been thinking along the lines of low voltage electromagnets???? 

Ideally, I would like independent hoppers but not a necessity

[Prophet]

try this method its single hopper, but you can mod it to work for twins with a bit of thinking or with 2 servos and have independant control, this method i find works best as i can control the flow with a servo rather then dead open and drop the lot giving you ability to spread the load better then just 'dump'

[ray t]

Cheers for that mate, however not too sure if I could fit the servo in a position for this to work.  Maybe help if I included some photos of the hull that has been made.  I dont really want any servo on the external of the hull as I want everything as water tight as possible.

[Prophet]

try this instead.. but there are other methods using gears its your choice.