Summary This is a mount I am working on to mount the E3Dv6 hotend on my UM2 clone. To use this on a official UM2 the Z Height will need to be modified to prevent build plate crashing into hot end during leveling. I haven't tested this on official UM2 yet just my clone which has a larger build envelope and doesn't have this issue. Hardware needed: self taping screws for clamp: http://www.mcmaster.com/#99397a077/=y8g57e Bolts for body M3 × 0.5 50mm lenght: http://www.mcmaster.com/#92095a475/=y8g6c0 Nuts for the bolts M3x0.5: http://www.mcmaster.com/#94150a325/=y8g73z you will need a T6 torx drive for the clamp screws 8/2/2015 added adaptor for extruder to use 4mm bowden tube, adaptor has threads for a 1/8" BSP PTC fitting.