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Small updates to the Fenrir 3D printer hotend assembly

Hi everyone!

Some updates to the hotend assembly.
I’ve integrated the cable chain into the top part of the assembly and made slits to slide the black part into the orange part of the mount, and then a grub screw to secure everything, which should make it easy to service the hotend. 

Other than that I will continue to print the Fenrir prototype parts, and try to get it done as quickly as possible, I really want to get it done so you guys can start building it.