Yup that is it, in truth this beast will not get lots of thrashing around and I have had 2 for getting on more than 10 years now. Both of the 2 I have were in Steam Trams from varying sources that now have better chassis.Are there no bearings, and just a bucket-load of washers for centring the axles in the 'block', Jon?
If it becomes a problem I can always turn up some bearings and redrill the chassis, but I doubt it will be a problem with the low use that this trolley will get.Delrin gears with brass worms, and delrin chains are all pretty hardy, but bare axles with no bearings is a bit risky
Paul, looking at this latest batch of painting, your methods are improving all the time. Superb job.
Thanks Phil, I have 2 switches one that does the battery and the other that does the link to DCC. Both have plugs but different sizes so as not to mix the up!Hi Jon,
If you are feeding into the charging socket?? - Is it not wired to disconnect the electronics, and ONLY charge the battery???
Just a thought..
I think when it corners the central wheels are dragging the piston rod bars sideways and they are catching, hard to see as it's moving but I will make a small change and see if it cures the problem. It is all FDM Printed apart from the buffers which are Resin, there will be resin printed detail added later.Knocking on corners, is quite often something catching within the motion..
How much of this one is resin-printed, please?
I'm with Philp, rather than reducing the axle play, it might be better to increase the side play in the motion - in other words, while the axle has enough side-swipe in the chassis / axle bearings, it shouldn't take the con-rod with it; so allow the con-rod more side-swipe so that it can remain straight while the axle moves from side to side.I think when it corners the central wheels are dragging the piston rod bars sideways and they are catching, hard to see as it's moving but I will make a small change and see if it cures the problem. It is all FDM Printed apart from the buffers which are Resin, there will be resin printed detail added later.
Yup, not a British concept - the only UK locos like that to my knowledge were the SR's USA TanksIf you look at a Piko BR80 the connection to the piston rod comes from the back wheels rather than the center, which would have been a lot eaiser to control the clearance but wrong for the engine I am making