MK8 Drive Block Lever Adjustment

I like to see the Gear of my Drive Block as with big Prints and higher Temperatures the heat of the Stepper can be quite enormous. This leads to more Material left in the Extruder Gear. To clean up a bit without disassembling and while Printing (also to flow Air into from a Can to cool down everything a bit) i modified the Lever accordingly.
It's quite robust though the Spring should be have anyways the right length to not to press too hard on the Stepper (gets extra heat and Material stucked). Also the Heat can leak away more easily.
Normally another Fan is pointed to the glued heatsink on the back end of the Stepper but with some Materials this has a bad impact.
This should keep things more controllable.
Added the Left Lever also.
Added V16 to possibly add an PTFE (Teflon) Tube 3mm x 2mm to prevent abrasion of the Lever and have a better guide of the Filament.

The other Hole ist for an Adjustable Feature, i will add photos later.