Another for firing an electronic trigger marker is an electronic on/off switch. The Turnigy switch from Hobby King costs less than $7. Course, there is shipping too ... heh. Mike
From: Frank Pittelli <[email protected]> To: [email protected] Sent: Wednesday, May 22, 2013 11:13 AM Subject: Re: [TANKS] Re: M4A3 75mm Build Project The C12C is not currently being sold because of stocking issues (too many projects, too little time). But, it is only one part of the control system needed for a tank. Here's a basic guideline for the necessary systems and what can be used to implement them. You can make it cheaper or more expensive and you can make it simpler or more complex, but this is a good place to start. 1) A stock 5 or 6 channel RC transmitter/receiver. The C12C is just one such system. Numerous 2.4Ghz RC packages are now available for less money (less than $50 from China and around $100 in the US). Some have more features than others, but tanks generally don't need all the fancy features. Servo-reverse is basically the only required feature. 2) You'll need either a dual motor controller or two separate motor controllers plus a mixing circuit. Affordable options include the Sabretooth 2x25 ($125) and Sabretooth 2x60 ($190), depending on the size of your motors and their current draw. We've also recently started experimenting with the Talon SR Speed Controller ($60). That's a single motor controller, so you'll need two of them and a mixing circuit ($40), which puts the total price in the same ballpark as a dual motor controller. If your radio system already has tank-style channel mixing, then you won't need the additional mixing circuit. Even when scratch built with custom parts, getting the price below $100 is nearly impossible for a repeatable, reliable and easily wired solution. 3) A rotate system is nothing more than a motor ($10), a drive mechanism (gear, pulley, chain, or friction wheel) and either a servo ($10) and a simple pair of switches ($2) to provide on-off control or an inexpensive 12V speed control ($25-40). Rotate motors don't require a lot of current, usually less than 5A in normal usage. 4) An elevate system can be implemented using either a stock servo or a simple motor with on-off controls. If the gun assembly is properly balanced (add small weights until perfection is achieved), then 1/4 scale servos ($30) should handle the job. There are also new, high-tech servo gear-head products that provide more torque/precision ($100). A low RPM motor ($10-15) can also provide the same capabilities, while being cheaper and more powerful. 5) Fire control is the simplest of all systems. If your marker has an electronic trigger, you only need a stock servo ($10) and a micro-switch ($1). If your marker has a manual trigger, a stock servo ($10) can be used to pull the trigger directly or a door-lock actuator ($6) and a servo/switch ($11) can pull the trigger. Despite the slight extra cost and components, the door-lock actuator is the best solution because it can pull the trigger faster than a servo and is easier to mount to the gun. Here are just some of the many web sites that supply the various parts described above: http://www.hobby-lobby.com/- Spectrum 2.4Ghz radios http://www.hobbyking.com/- Turnigy 2.4Ghz radios (US warehouse) http://www.dimensionengineering.com/- Sabertooth dual motor controllers http://www.andymark.com/- Talon SR motor controller http://www.servocity.com/- servos, gear heads, mounts, RC switch http://www.allelectronics.com/- door lock actuator, switches, motors http://www.mpja.com/- switches, motors On 5/22/2013 8:26 AM, S.Schramm wrote: > Regarding the control system for my M4 Sherman. I've been looking all > over RCTC, in the tank descriptions and in the different treads, trying > to figure out the best solution. Would love to have proportional > steering. What are you guys installing in your tanks as of 2013? I found > that the C12C Control System looks very promissing. So on to the next > step, how do i aquire / buy a complete C12C setup with some instructions > regarding wireing and component layout. Im not the big electrician, but > i can read schematics and have basic knowledge of AC DC components. -- -- 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/groups/opt_out. -- -- You are currently subscribed to the "R/C Tank Combat" group. 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