Thank-you for all your responses, the fact that you have taken the time to look makes it all worth it.
So as a few of you have observed the spools do come in all shapes and sizes, in the presentation we do give you a basic standard size we have been working from and we have found a small variance in the spools we have been using. You are also correct in that this variance can cause issues so when we release these there will be a detailed set of instructions on how you can alter the models to suit your spools, we have given this very careful consideration and we think we have covered most options that you will face with the common spools on the market.
you can find a chart here http://thrinter.com/empty-spool-weights/
that shows a large range of spool makes and sizes, you will see most are very similar. Unfortunately there will be some spools that this just wont work for but there is not alot we can do about that unfortunately. To give you an ide though for a wider outer diameter the edge pieces can be scaled to suit relatively easily, if you find that your spool is thinner than 55mm then there are two options, either you can scale the height of the panels to the correct height to suit or you sink it through your build plate cutting off a small bit of the panel but maintaining the detail of the panel. for spools that are taller we will be including a skirting block that can be scaled up with detail that shouldn't distort too badly. this should allow to fit spools with most 'heights' between the flanges.
for the inner diameter the panels have some clearance from the centre of the spool and have some overlap to allow them to expand slightly to suit.
The bridges, walkways, steps and railings that clip onto the spools all have extra room between the jaws to allow part of the clip to be filed away to enable it to fit thicker rims.
If you have any further questions on compatibility or suggest any spools you would like them to fit then i would be happy to discuss your needs however there is only a limited amount we can get done prior to the ickstarter.
I hope this clears things up a little bit, we are now test printing a set of free facades for "ye olde taxidermy shopee" that will be available to download from our website on monday evening, this will give you a chance to print them out for yourself and see if the system works for you.