Racerboy

Is the V2 better for powering 2 L-Motors on the same channel? I'm considering purchasing 2 V2 receivers to power 4 L-Motors to drive a tank.

Includes a realistic turning radius! Hah

I believe that increasing pressure in a tank will make the tank heavier, and any further increase in pressure will cause the tank to sink. It would be more effective to somehow introduce a vacuum into the tank. I'm not sure if it will do much, however. Feel free to correct me if I am wrong anyone. Oops, didn't see your post Hrafn, apologies. (anyone know why I can't edit my post?) Oh, I didn't know I can build upon my old post. Sorry

Very cool! If you are interested in making it turn better, consider raising the 4 corner wheels by half a module somehow. The only way that I can see in your MOC to do this would be to have the four corner frames with the gears in them be on a pivot on one end such that the wheels are raised up (lowering the center wheel). This would also require using U-Joints to connect the gearboxes as the axels would need to flex slightly upward from the center boxes. This way only 4 wheels would be contacting the ground at a time depending on weight distribution, center of gravity, and the direction it is going in possibly (if the weight is distributed properly). Just an idea to maybe prototype with. Nice work.

Ok, I'll probably use that, thanks! So do you guys think it's necessary that I use the V2 with the given application?

I was hoping I would be able to get it alone to save a lot of money. I will attempt to describe their application below and you guys can make the call as to whether they are necessary. I already have two v1's (I don't think they are the fixed version but I'll check) that I will use on my "tank-drive" robot in the meantime. It is driven by 4 L-Motors (2 on each side), through a geartrain of conical gears (20's and the smaller one i forget) so there is a gear increase there, and from there it drives chain from the center wheels to 4 other wheels, making it a 6-wheel tank drive (three on both sides - they're new-old stock rubber tires about the size of a 40-tooth gear, but pretty narrow, about 2 modules). The center wheels are dropped half a module (actually the corner wheels are raised half a module) so the robot can rock from front to back, so only 4 wheels are in contact with the ground at a time (the other 2 are in the air half a stud. This is for better turning ability.) The robot is about 35 studs long and 25 studs wide or something, I forget. I plan to have 2 lipo batteries onboard powering the 2 receivers, each operating 2 drive motors (one for each side) and a couple various motor-operated pneumatic valves and an on-board compressor with tanks and such. It's going to be quite the robot, and my only worry is power draw with the amount of weight. I will post pictures next week if I get around to it, thanks.

I'm wondering where I can purchase two Power Functions V2 IR Receivers through LEGO, the next time they're in stock can I buy them from here and have them be guaranteed v2? shop.lego.com/en-GB/LEGO-Power-Functions-IR-Receiver-8884?s=4566735# Or is there a way I can purchase them through replacement parts?