OzShan

You may have sighted this already, http://mechatronics.ece.usu.edu/ece5320/Schedule/hw01-2010/hw1_Zeke_Susman_a.ppt The profile of the teeth is not described unfortunately, but the three key components are discussed in different configurations. A difference of two teeth will give the highest gear ratio. Having played with the real things, I can assure you a technic version would be awesome! :)

I'd also love to see a small harmonic drive. Maybe 4l thick and the diameter of an xl? No backlash and high ratio in a small package would be so useful. The output could be like a small turntable so you could build straight onto it. Too much torque for a shaft.

That is very cool. Nice white-walls too.

I can't explain the 9398 observations (I have one as well). You would think that two Ls would trip it out before 2 Ms. At this stage I'm just glad the V1s are cheaper and plentiful :) Happy to help :) it's a great page with a lot of extensive testing.

I think Philo did a video on this and it's on his page somewhere. http://www.philohome.com It happens because the V2 delivers more current but then overloads itself and the protection kicks in. I've decided just to stick with the old ones for multiple m-motors.

That cab is just awesome.

"I've never removed skin after a lengthy deconstructing session, that brick separator is always on hand"

Good luck with the rest of it (and for the studies as well).

Hi all, Below is my first build of a flow control device to operate a bank of single acting cylinders. It's built on top of Sariel's dual output worm drive gearbox. In this application when the motor runs forward, air is delivered through the near set of valves and black loop to the cylinders on the right. Running in reverse drives the other pair of valves to drain air through the grey loop. Each pair of valves are offset 180deg so they can never be open at the same time. This way it doesn't matter when you start, stop or change direction nothing can get stuck open. The shaft turns counter clockwise and the valves are on a spring return. I've seen mechanisms that drive double acting cylinders but not single acting. Any suggestions for other examples I might be able to learn from? (Ideally it would be a lot smaller but this was as compact as I could make it). Many thanks, OzShan.

You mean after you tempted fate back here? Haha. Are you planning to leave the fuselage open or build it in?

Looking good so far. Watching with interest :)

Like it. Who needs a hull?

It's a trade off between having Max bending in the upright or the cross beam. Which to you want to flex more? Is the load out at the tip or spread across?

Thanks. I did a little more searching for different sized sprockets to match, but that one and some different types are all that was returned. A bit hard to build a drive train now, but I guess there is always hope for future inclusions. Hope it worked out for then to release those parts for just those sets! Anyway, I digress. Cool clutches

Very cool thread. I also like reproducing 'real life' mechanisms in technic. On the topic of gear thrashing some of you mentioned (and perhaps backlash too) does anybody know if TLG has looked at including small toothed belts and pulleys? There are so many different small belts made for printers etc that maybe it wouldn't be too expensive?

That looks fantastic. Good to see such an awesome studded build, and yes I think it looks very much like the real thing. Looking forward to more detail around the cockpit :)

I was able to remove the small black 16t drive gear from each drive assembly without pulling many parts apart (the first gear after the motor in the train). If you did that you could see if the motors are putting out much torque, or if the rest of the train is bound up. It should at least roll freely with the gears removed. Good luck.

Glad this is still going or I'd have missed it. Indeed very elegant and love the white.

Very nice. I like the way the two rooflines are studded, but there are also many other studless details spread around. The trailer colouring is cool too.