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Just another word of advice. If you're doing this CNC and relying on the thickness of purchased stock for your measurements (for grooves, for example), be careful. The MDF and ply will almost certainly be different thicknesses.
fizzy.bleach-
Agree with this and I found different batches of plywood from the same timber merchants varied enough to make the dados loose/tight
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Do you mean because of tolerance, or because of stock thicknesses being different? Both come in 18mm but I understand I'll need to do a little refining of tolerances in prototyping. Luckily the Valchromat will be used for most of the tenons and has a higher tollerance.
@pryally that looks awesome, I like those dowels as a feature actually.
pryally
Polygon
Oh yeah, good shout, I should do that.
@airhead, flat-pack-ability is probably a big bonus tbh as I'd like to market the design if it's a success, I'll go that route. I've only got access to a 2-axis CNC so will have to do the 'endgrain' holes by hand, but will create a jig to make that faster and more accurate.