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Posted 20 hours ago

LEGO 2x 2878c02 Train complete axle +wheel | Black

£6.95£13.90Clearance
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ZTS2023
Joined in 2023
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About this deal

Once the sun comes up and I have enough light to make the camera happy I'll shoot some more video and collect more results. The use of 3D printers makes it possible to produce LEGO compatible components in smaller quantities and without the need for complex and very expensive injection molds. The type used in the last years, metal axles but plastic points at the wheels, or the old type with long meta axles and metal points at both ends ? I could do a wiggle track but I don't really see the value as it's not something I use in actual layouts - I get the feeling it's something people do for house-size tracks because they inevitably have a big pile of curved track left over.

The spoked wheels can not be powered directly so you have to use standard LEGO train motors which could be place in the tender or a waggon of the train.

The only reason I wrote "eternity" is that I had many trams and passanger cars (each of them has at least 200g load for each axle) running on a permanent display between 2017 and 2021 (with some lockdown months). Here is a short video showing construction of a four wheel tank engine using all LEGO power function parts (motor, battery and IR receiver) and four medium wheels with o-rings. Some LEGO® sets contain small parts that are NOT suitable for and may pose a hazard to children under 3 years of age.

These wheels were connected to a modified 2x4 brick and their running characteristics are much worse then the 9V train wheels. This includes, therefore, the current Remote Control system, the slightly older 9V system, the grey 12V system, the blue 12V system and even the 4,5V battery system!I compared my ball bearing train axles with the original LEGO train axles using cars that weight 685g. They might have slightly higher rolling resistance than the old ones, but not as much to worry about IMO. If you can't find the perfect LEGO compatible wheels or rods then fear not - we also offer a design and print service for custom parts. Results with TrixBrix R72 curves (only 45 degrees of curve each way because that's what I have available).

My first attempt with suitable ball bearings was good for heavy cars, but light cars ran significantly better with the orignal LEGO train axle than with my ball bearing solution, and so I had to find a better solution. TLDR: my wagon with one pair of metal axles is significantly faster than the one with all plastic axles. The test track is one of my 3x9 tabletops, with the left hand end 10cm or 8cm above the right hand end. Similar in design and size to the discontinued 57878 train wheel by LEGO, these wheels fit standard metal axles much more tightly - no gluing required!

This is because the two wheels turn the same speed (same rotation speed), but they need to run different distance on a curve (the outer longer, the inner shorter), so the outer wheel will be dragged or the inner slipped.

I use the original LEGO train wheel axle, this axle is usually a little bit thicker than the hole of the ball bearing, so I created my own techniques and tools to get the ball bearings assembled to the metal axle. I have that but I need a really steep ramp to get the wagons through the last horizontal section so I've dropped back to 3 sections one way, 6 sections back, then 3 more to go straight down the ramp. If you actually needed the roller bearings on the uneven layout you could make some hidden stops, e. They'll never run out of pieces thanks to products like the LEGO Train Base 6 x 24 Black, or the LEGO Train Coupling Buffer Beam With Sealed Magnets.In your experiment, you used straight track and gravity to accelarate - since metal axles have less friction and mechanic resistance at all and there is no curve resistance, they will perform better. I assume from this point on the used grease / oil is more important for ball bearings in LEGO train wheel sets. Most purchases from business sellers are protected by the Consumer Contract Regulations 2013 which give you the right to cancel the purchase within 14 days after the day you receive the item. britbricks, the britbricks logo, britbricks custom designs and all content not covered by The LEGO Group's copyright is, unless otherwise stated, ©2024 britbricks. The photos of the scales have had the display area curves blown out so you can actually read the display in the video.

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