Some fettling ahead of Saturday's outing to the MMDMRC's small summer show in Knowl Hill...
The 2nd loco (8 Llewellyn) has always been a bit tempramental compared to 7.
8 has a 3D-printed bodyshell on a Minitrix Ivatt 2MT 2-6-0 chassis. This has traction tyres on the lead drivers and, despite being stuffed with as much weight as I can cram in the shell, stuttered over dirt, crossing vees and was generally a poor runner.
7 has a Chivers whitemetal body on the chassis from a Minitrix Ivatt 2MT 2-6-2T chassis, which does not have the traction tyres. Smooth* as anything, runs anywhere on the layout without hesitation.
*well... as smooth an anything Minitrix can be...
My ops plan needs 2 locos, so I needed to bring 8 up to scratch. With limited time available, finding a new, better chassis wasn't an option, so I thought I'd try swapping the bodies over. Heavy whitemetal body on the poorer chassis and the 3D-printed body on the good chassis. Happily, it seems to have worked pretty well. 8 now rarely stutters while 7 is still a good runner, if now a little prone to wheelslip.
Next job is to touch in the paint on the coaching stock in a couple of places and recheck all the coupling heights. I did swap out all the brass wire coupling loops for soft iron ones a week or so back to allow the use of a magnetic wand for easier uncoupling.
The 2nd loco (8 Llewellyn) has always been a bit tempramental compared to 7.
8 has a 3D-printed bodyshell on a Minitrix Ivatt 2MT 2-6-0 chassis. This has traction tyres on the lead drivers and, despite being stuffed with as much weight as I can cram in the shell, stuttered over dirt, crossing vees and was generally a poor runner.
7 has a Chivers whitemetal body on the chassis from a Minitrix Ivatt 2MT 2-6-2T chassis, which does not have the traction tyres. Smooth* as anything, runs anywhere on the layout without hesitation.
*well... as smooth an anything Minitrix can be...
My ops plan needs 2 locos, so I needed to bring 8 up to scratch. With limited time available, finding a new, better chassis wasn't an option, so I thought I'd try swapping the bodies over. Heavy whitemetal body on the poorer chassis and the 3D-printed body on the good chassis. Happily, it seems to have worked pretty well. 8 now rarely stutters while 7 is still a good runner, if now a little prone to wheelslip.
Next job is to touch in the paint on the coaching stock in a couple of places and recheck all the coupling heights. I did swap out all the brass wire coupling loops for soft iron ones a week or so back to allow the use of a magnetic wand for easier uncoupling.