Great job Caleb. When I made the Pak40 anti tank gun I placed the actuator in a similar spot. It was the use of the salvage yard hatchback release on the Pak40 that moved many away from servo actuated firing mechanism.
So, since you'll be manning your artie piece, who will be taking movies? John On Monday, August 4, 2014 4:01:12 PM UTC-4, Caleb Smith wrote: > > Finally, progress! I've moved the actuator to a much simpler spot. Plus > I made the toothed wheel for the rotate. > > After my idea for firing the gun went up in smoke, I had to move the > actuator. The only place that would work was underneath the gun mount. > The arm of the actuator will be attached directly to the trigger > thing-a-ma-bobby that Steve built. > > >> <https://lh4.googleusercontent.com/-Y-NByrQorfU/U9_edN_M60I/AAAAAAAAAQY/qSKUU1Wx3y8/s1600/IMG_6583.jpg> >> > > For the rotate, I was originally going to use a bicycle sprocket mounted > on a motor at the end or the gun carriage. After some close inspection, I > decided that the sprocket wasn't going to work. First, I think the > sprocket is too skinny. I think it doesn't have enough surface area and it > would sink into the dirt. Plus if I started the motor abruptly, the > sprocket would probably turn into a mini ditch-witch. > Secondly, upon looking at a sprocket, it looks fairly complicated to mount > it on a shaft. So I've come up with the same idea, only better. > After gluing two pieces of 1/4" ply together and cutting out a circle with > some teeth in it, I had my spiked wheel. Kind of reminds me of a TTS drive > sprocket. > > > <https://lh6.googleusercontent.com/-lRxuzPzriSs/U9_huDD2sAI/AAAAAAAAAQk/P32ga70MawU/s1600/IMG_6584.jpg> > Those ESC's are very compact, and may I say...tough. Today I was playing > around with one, running one of the rotate motors when smoke started to > come out of it. I quickly unplugged it from the battery. I couldn't see > anything the matter with it, so I hooked it back up to the battery, and it > has worked fine every since. I'm not sure why it started to smoke, but I'm > thinking it might have shorted out somewhere. > You can see how small these things are. > > > > > > > > > <https://lh5.googleusercontent.com/-NC2XNsA0DhY/U9_jQTvAcGI/AAAAAAAAAQs/qbXROfqAo1U/s1600/IMG_6588.jpg> > Here is my failed attempt to make a device that would allow the actuator > to pull the trigger. > > > <https://lh4.googleusercontent.com/-WyLxXeEnv2Q/U9_j8avPQeI/AAAAAAAAAQ0/RPMeo4PoU6U/s1600/IMG_6589.jpg> > Caleb > > -- -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat --- You received this message because you are subscribed to the Google Groups "R/C Tank Combat" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
