I've recently got hold of most of the parts of an old D45M, which I'd like to put to use.

Unfortunately it seems the later monorails are a completely different design, and I've not seen any being sold (and few enough at reasonable prices for ANY large format monorails) so I plan on doing a bit of DIY....

To simplify matters does any one have a rail they can provide dimensions / pictures off?
The gear rack is of particular interest, better still would be the racks technical designation, (I'd guess around 32DP imperial or 0.75MOD metric??) This will allow me to order a pre-machined rack

I should be able to judge the diameter well enough from the standards.

Many thanks

Mike