When I initially stripped the tank down, it looked like this:
Now I've cleaned up the parts and replaced the servo, it looks like this:
This is the unit in operation: http://www.youtube.com/watch?v=pQSiuzfaQz0
The servo is a Sanwa ERG-VRX, which is supposed to operate at 0.06 seconds per 60 degree arc but I don't think it's quite that fast. The servo is being controlled by a PICAXE 08 chip, hence the dual speed operation. To get the best from the servo, I'm running the whole circuit from 6 volts but I think it would be safer for the rest of the electronics if I create a split supply.
For those wondering why their Sherman doesn't have a recoil system, I believe this was superseded by the blank firer before the Sherman kit was released.
Personally, I'm torn between leaving it as it was originally designed or changing the length of the arm attached to the servo, to increase the speed of attack.
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Bryan The Bastard-JagdPanther 132, Ermintrude-SdKfz251 133, Thors Hammer Stug IV 135, Arwen 1/4 Panther 136, 137!!, Iveco 75R15 In Service!
Is the sytem controlled via an rf channel or a simple switch? Looks good and oh so simple
1/12th Abrams - Parade Ready
1/8 Merkava MkIII - Buiding Stage
SOME PEOPLE ARE LIKE SLINKIES.
NOT REALLY GOOD FOR ANYTHING BUT THEY BRING A SMILE TO YOUR FACE WHEN PUSHED DOWN THE STAIRS
for b0=10 to 190
This is just a continuous loop, to get the travel and speeds right, and to exercise the parts.
Getting it synchronised to the sound system is another project entirely...
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