Nvolar

Here are the pictures of the improved and final version of the test rig. All the planned features are now realized. I've also made a small video of the coaxial rotors in action. Test rig v3 with the rotor blades. Close up of the gearbox. The motor is now more integrated. Close up of the collective pitch control at the bottom of the rotor mast.

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That video is really amazing. Thx to the main characters off course. I agree with Crtlego. The camera rig interests me even more.

So many of those new motors in such a gorguous body. Took me a while to stop drooling over the pictures and post some praise. Outstanding build Effe

JunkstyleGio, I like that black-ops version. Now you made me wanting to turn the B-model into a KA-50 'Black Shark'. Not that I mind that

Great looking truck I was wondering about the weight distribution with the cabin in the front. Then I saw you put the batterybox in the back. Well done.

Seeing that the A-model gets all the love and the B-model almost none made me feel sad. The B-model is a great build. It's long and sleek which gives it a great sense of agility and speed. Plus the fact that the intermeshing rotors are really cool. Even my wife was impressed… After seeing Jeroen Ottens post on his counter rotating rotor mechanism I started wondering if something similar could be done for the B-model. Since this is my 1st mod in over 20 year (that just made me feel ancient) there were lots of challenges to overcome. Like familiarising myself with the Technic pieces again and getting up to speed with current building techniques. Anyway long story short, I succeeded. The coaxial rotor mod has the following features: - PF powered functions (M motor) - Coaxial rotors (with ratchet) - Collective pitch on both rotors - Bi-directional clutch to operate landing gear - Clutch to start/stop rear propeller (with ratchet) Things to do: - post pictures of final test rig (v3) DONE - integrate battery box into mod (nearly done) - integrate mod into B-model First attempt Below you can see the 1st version of the test rig that demonstrates the main features. Sorry for the bad lightning. I've also listed my learning points from this version. Front and bottom beam setup are identical to B-model to ensure proper space restrictions. Coaxial rotor mast Landing gear clutch Propeller clutch All gear down at the start of the gear chain = BAD! (you think after reading all those truck trial threads I would've learned something… *slaps forehead* Ratchet support is not strong enough at full speed. (See 1) Toothed clutch gears are handy for compact rotation reversal but very rare. Flimsy clutch lever mounts. Gear box lacks rigidity. The rotor mast uses 3 small turntables. Collective pitch will be operated from below. I'll post update in the coming weeks. Comments are more then welcome. EDIT: Added the pictures into the post.

Such a cute looking robot with a flailing device in the front. Nice robot... stay away from me! It's models like this that make me wish there were S motors.

ZOMG! Two L motors in such a small chassis!? No wonder it can do wheelies. Looking forward to the bodywork. Though you may want to stiffen the chassis a bit as it seems to bend in the last picture.

The F1 set looks interesting indeed. Never had the change to buy one of the previous models. The material handler seems more like a 8043 light. I await more spy pics.

I'd seen this model before but i didn't realize that it actually moved as well. Thx for the instructions. Another model on my To Build list.

Wow, great moc! I really like how the chassis looks simple and compact. I've never seen a trail truck capable of spinning PP wheels before.