So I am a 3 rail guy, toy train, type of guy, with a two rail question. I am looking for some axle sets to build a project car for three rail but I intent to start from the ground up. Can someone tell me where to find wheel/axle sets that have solid end axles instead of the needle point design used in most 3 rail offerings?
I actually intend to build the car out of lego brick and have some pretty nice looking plans to work from, courtesy of https://brickmodelrailroader.com/. The problem is that Lego L gauge is wider than O and the axles don't re-gauge without breaking things. Also, lego train wheels are very skinny ( despite having huge flanges!) The wheels mgith work on gargaves or ross track, but never on tubular rail.
Brick model railroader actually sells kadee couplers built into lego bricks and axle sets with brass bearings in the bricks, but again both the gauge and the profile won't work.
But if I had some axle sets with plain ends I could get bearings(bushings) made that would press into the bricks and slip of the axle ends with out a problem. Can someone point in the right direction?
(My apologies in advance if the lego freight car concept hurts the heads of this group, just seriously looking for some advice.)