More design work on the mounting block

I did a bit more design work on the mounting blocks project. To explore ideas. This version drops the idea of sliding mounts but keeps the idea of using a replaceable nut. Nut replacement in this design would be through windows inside the boot sole. Making the nut replaceable adds complexity to the boot construction but I think it is an important area to consider new ideas. Failure of aluminum threads is common and while helicoils can be added for thread repair this can often be done only once and it is a difficult procedure for a skater on the road who does not have a full shop.

With a replaceable nut design you have two options. One approach is to provide a slot so the nut can be slipped in from the bottom. The other option is to provide some sort of window in the boot shell for a nut to be slipped in from above. This block design is based on the idea that the boot shell will provide access to the nut when the skater removes the insole. The actual nut can be slipped into the slot from above to replace worn threads. I am currently trying to avoid the need for a slot. I am torn about the need for a slot. If the boot is properly manufactured a slot for fore/aft sliding is of limited appeal and I think such an approach does weaken the boot slightly so this version does not provide a slot.

Currently I am designing around the idea of using a standard hex nut although I might consider adapting the system to use a custom nut similar to the one Luigino uses for their slotted system. I am not sure if the replacement nuts in the Luigino system are inserted from the inside of the boot or from the outside of the boot but regardless it is a nice looking system based on photos I have seen on the web.

The sides of the my block design are shaped to provide a lip that will enhance the block retention in it's carbon fiber pocket. This block design would also lend well to exposed mounting surfaces if I decide to go that way. With this block the lip around the base would provide containment holding if the face was left exposed.