- 21 Dec 2017
I found some plastic tacks of some sort in the garage(I don't remember what they are from or for), and I thought the size seemed almost right to make some pins to hold the RC rod to the SM:Yes, Acetal is Machineable Nylon and it was done for me on a lathe by a precision engineer.
I think your plan is great and looks so much better than what PM did originally. I think they used a long connecting rod to hide the fact that the loco had no coupling rods! This also saved them the cost of quartering the wheels too!
(click images to enlarge)
The PM pin pictured there is for RC wheels so it's shaft is wider than that of the SM pin, I was trying to match the tacks head to it for the RC rod, by trimming with cutters, and then sanding it in a drill:
The fit seems ok:
I borrowed the gold pin from my 4017 to connect the other rod:
I'm still working on attaching the sliding end at the front:
When I made a parts order at PM DS, they mistakenly sent me one of these hollow pins instead of what I ordered:
I have no idea what part number it is or what set it's from, but with some modification, I think it might be the perfect solution. If anybody could tell me the part number I would really appreciate it <nudges playmofire>, because I need to order one more. It seems to fit perfectly in the larger RC rod hole and I could stick a different kind of solid pin into it with the head of the solid pin on the other side of the slide slot.
James this this link you sent me on quartering was very informative: http://modelengineeringwebsite.com/Wheel_quartering.html I'm hoping my wheels are quartered enough by default for the RC rods. if they are close enough, do you think they start on the correct side?: