Many thanks… this diagram is a keeper!Roelant wrote: ↑Thu Dec 29, 2022 7:15 am@GrimSurfer
Here are the digital measurements directly on the to-scale jig drawing from Rottefella.
I used the built in measurement tool for Adobe Acrobat Reader.
Yes that one measurement IS 3.01 cm and not 3.00 cm when snapping the measurement points to the hole centers - no idea why. But 3 cm is close enough in practice.
Xplore dimensions.png
According to this drawing, the outermost parts of the holes are 32mm apart, =16mm from the centerline.
So the front binding screws are 13mm on centre. The drill bit size for the screws are 3.6mm wide. So the hole edges are 14.8mm from centre. Theme was pretty much right on the money in her measurement of 15mm then. (Well done, Theme!)
Binding screws are pretty coarse, so the crest of the threads are going to be at least 1.0mm proud either side of the minimum diameter of the fastener. So we’re talking roughly 15.8mm from the ski centreline to the outer edge of each screw. This tallies with the 32.0mm dimension you mentioned. (Never a bad idea to double check a critical measurement to see if it makes sense, which this one certainly does!)
So at this sums to 8.0 mm of side material when mounting an Xplore to a 48mm wide ski (24-16=8).
It would be unwise to speculate on exactly how many millimetres of side material is needed to hold the screw because the issue is more complex than what a single fastener is doing in one plane of motion. My intuition is that 8.0mm is certainly enough.
Whether 6.0 or even 4.0mm is sufficient is anyone’s guess if attempting to use Xplore with a track ski… not that anyone here is thinking of such a project at the moment.