ejayb

I finally got round to work not he failed 88008 motor from the summer. I removed the backplate/brush holder and it was immediately obvious that the brushes were damaged. Here are the brushed from the replacement motor. The backplate/brush holder fit the original motor without any issue and it ran fine. The gearbox had dried up, so I applied a little mineral oil before reassembling everything. Then I refitted the motor into its locomotive and ran it up and down the layout for some time. I'll see how it holds up and try to find a source for just the motor backplates.

Excuse me, this is not directly related to brushless motors, but I believe the experience here might help. As a train builder, I'm a fan of LEGO's 88008 motor. Not only for it's compact size, but also for it's slow speed ability due to PID control and the use of PyBricks with PUP. Unfortunately I've had two of these motors fail and they are now discontinued, the price will only rise. I have sourced what I believe to a replacement motor and I will try to remove the gear from the original with heat, set it onto the replacement and shorten the shafts. Alternatively, has anyone experimented with reusing the 88008 control board with a completely different motor and housing?

@Lok24 have you had any 88008 failures?

https://www.flickr.com/photos/30673753@N05/ It wasn't the internal gearing that failed, rather the DC motor itself. It will rotate in one direction but not the other. The 'propeller' can be popped off the rear shaft. Replacement motors appear to be for sale on AliExpress but I need to double check measurements next week. https://www.aliexpress.com/w/wholesale-rf%252d300-dual.html?spm=a2g0o.productlist.search.0

I've had my second 88008 Medium Linear Motor failure in 4 years. I assume it's the internal gearing. The first runs one way, but not the other. The second runs fine in one direction and clicks in the other. It's hard to quantify, but I wouldn't say I run them particularly hard. Has anyone take one apar?

I’m not planning to get into 9v, so my take my opinion with a grain of salt, but 9v motors replicate something that’s already available. Power pickups open up new use cases. 9v powered PF for multiple train operation and medium/large motors for more torque and realistic speeds

I'm interested to see what replaces Powered Up, but seeing as the firmware on the new Porsche hub is signed and PyBricks cannot be installed, I'm not very hopeful. I just got a hub, remote and a few extra bits for a good price second hand. I need to keep an eye out for more, as well as 88008 motors.

Checked the half priced hubs in the morning, sold out by the noon when I went to order. I’d be using custom/third party electronics if anything existed like the rotation sensor motors and PiD control

Looks very interesting, do you have an operations schedule/plan?

Ropefish, your image is not available. Are you able to replace it?

That's good to hear, I just need to wait for my parts to arrive now :D

Thank you. You have no problem with the top gear meshing?

Do you have an operations plan?

Thanks Faph, I'm trying to gear down my Boost motor loco. I'm waiting for parts to arrive but I'm trying out some different configurations in Stud.io. I'm assumed the gears need to be supported from both ends to stop them slipping.

I think he is using 12t bevels and only drives the front axle. It looks like you’re using 12t-16t, but only supported on end of the axles? Then I assume another 12t at the bottom?