Apologies if this is a slight thread drift. Follow up regarding your mention of 3DFlow. My brother in law has a 3D printer (filament type). I have a loco part for one of my old Tri-ang locos it would be very handy to have reproduced on a 3D printer. The reason is that although I have obtained a 2nd hand replacement in complete condition it is as likely to break long-term as the original one did for exactly the same reasons, wear, age and stress across the narrowest element.    Reading
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