kieran

Train is fantastic, defiantly worth a post over on train tech

Agree

The use of the rubber and is fantastic, I have never seen that before.

Is the road Lego?

Very impressive, do you know how many pin connectors were used, loads and loads I think

Very clever how this is done, really nice work.

PWM chops the full voltage into small chunks, its then the average of these chunks that gives rise to the perceived voltage at the motor and hence its speed. assuming the PF receive done not clip the voltage it will supply all of this voltage for 100% or 50% of time depending on the speed setting of the receiver. It has been tested a few times with higher voltages and it seems to be fine.

Nothing to say, other than amazing, looks so good

Works really nice, only ever one or 2 balls, neet design as always

Yep, looks amazing. Can I ask how long this took?

the trick to this is to monitor the rotation count of the output in a timed interval, if the rotation count is zero or a very low number you know the outpout is not rotating, i.e. its stalled.

Hi, you can find the engine on ebay but it will cost a fair bit now as you cant buy it from Lego anymore

It does look black in that pic, you can see the blue on the top as well though

I think you are asking if there is a way to have the NXT in your hand and the car with its motors and sensors connect to the NXT via RF? is so there is no way to do this

Hmm, i sued the same idea to create a robot arm that could move through a smooth arc. it works fine, but you have to keep checking your targets. In my case i was using inverse kinematics to calculate the angels needed to move the end effector (pen in my case) to where it needed to be, then i took the ratio of the 2 angles needed and sued that to set the power of the 2 outputs (within limits) and then set it off, in this way they both got to there end point at the same time in a single continues movement. I was aiming for a resolution or around 1mm so each step was small, hence each task would rune quickly.

You need 2 tasks, task one for motor a and task 2 for motor b, they can then do what you want at the same time Which you have, so I wonder why it does not work for you

That looks very promising

What a nice idea, layout looks good as well

Those Posters look greate

Does look good already, you have a very nice space for it all

Looks amazing, is that last image for real or a rendering?

I bought a load of this at 3mm, the issue is that the Lego stuff is a little bigger so the clutch on the 3mm is not as good, may not be an issue but thought it was pointing out

This is really nice, is it all run off the one M motor?

It can cause issues with the plastic, a pure silicone will be ok and it wont conduct either. where are you in the world, maybe some people can wade in with specific examples.

Just read your blog post, I am sure there are no metal parts in the RF switch tracks, there are however small plastic pieces, they have he lost some of the original spring, alsoyou may find they have collected a loge of gunk that is hampering there ability to switch freely.