ukewarrior

Excellent ! I do have one suggestion for power. In the marketplace you can readily find 65W (or greater) USB-C power bricks/modules. These are very inexpensive if you look around. As you may know, USB-C can provide several different power options. One of these options is 9Volts. For most 65W+ wall packs or bricks, the 9V power is rated at 3AMPs. How convenient for use with your creation. The trick of this is to utilize a VERY inexpensive board that tells the power supply which voltage to provide over the USB-C connection. These boards cost about $1. So, I think if you incorporated this into your next design, you save folks even more money in the long run as they don't have to buy the more proprietary 9V power supply with a barrel jack connector. Or you can provide both options. If you need a more detailed writeup on this, I have a document I can email or post if you tell me where/how. This site has a limit of 100K and I need 1.1MB for an upload. It also appeals to the fact that many folks already have this style of power supply on hand and it is the global standard for device power going forward. Final question: is there a reason I should wait for the mini or are there reasons to go with your original design???

So.... there have been no postings for months. Should I be monitoring a different site/source/place? Also, is the Mini Version moving along our should I just buy the original? Lastly, If I have a design input/suggestion for you, what's the best place to do that?

Do you post the files for the code and/or the PCB as open source?

So, I'm confused. I thought the c01 variant was the one to get instead of 2878c02. Doesn't the c02 varient require the side pieces to keep the wheels on the shaft?

Are their part numbers for just the axle and wheel?

Can someone identify the bricklink numbers for the axle and wheel? I would want the version with the through hole wheel and matching axle. Thanks in advance.

So... did this idea die? It really is needed given the state of 9v motor availability.

Are these still available? I'm surprised there isn't a huge demand given the cost of 9v motors !

If the axle is that tight, I think I would chuck it in a drill and use some steel wool on it to shine it up and that may be all you need to have a nice fit. Given the fact the lego parts are for toys afterall, I wouldn't always expect exacting tolerances with a part like the axle.

Can someone tell me the technic brick number so I can order some off bricklink to experiment on?