New Gimble For The Nimble/ 2020 & 1515 Aluminum Extrusion

Update 10-29-2019:
I have made a new version of the *** extruder_mount_bearing_holder.stl*** that is larger so you can add a cooling fan to the stepper motor. I added another bearing to the new part to improve the movement and to help with the added weight.
Two version of the new design:
1. Can be printed in one piece extruder_mount_bearing_holder_v2.stl
2. Can be printed in two pieces and bolted together with (4) M4 x 12mm button head bolts and (4) m4 nylon loc-nuts or hex nut extruder_mount_bearing_holder_v2_partA.stl extruder_mount_bearing_holder_v2_partB.stl
Other updated designs:
1. X_endcapL_v2.stl too fit extruder_mount_bearing_holder_v2.stl/ extruder_mount_bearing_holder_v2_partA.stl.
2. X_endcapR_v2.stl too fit extruder_mount_bearing_holder_v2.stl/ extruder_mount_bearing_holder_v2_partA.stl.
3. 2020_extrusion_mount_v2.stl… simpler design and requires (2) M4 x 12mm button head bolts.
4. 1515_extrusion_mount_v2.stl… simpler design and requires (2) M4 x 12mm button head bolts.
5. NEMA17_cooling_shroud.stl… This design was done by SergeDSI (originally named stepper-for-xy.stl)
6. NEMA14_cooling_Shroud.stl… This design I remixed SergeDSI’s original stepper-for-xy.stl to fit a NEMA14 stepper.
7. *** fan_guard.stl***
8. Noctua NF-A4x10 FLX 12v is the fans that I used, but you could use any 40x40 fan of your choice.
9. Moons MS14HS1P4100 is the stepper I used with the Nimble Extruder and is optional. Works great.
10. Optional: Another thing I did which might be a waste of a bearing is that I took apart a spare bearing so I could use the inner stainless-steel sleeve to use as a spacer in place of the M8_x_9mm_spacer.stl. So much stronger.

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A New Gimble Design For The Nimble.
Mounts for 2020 and 1515 aluminum extrusion.

Printed Items:
1 'extruder_motor_mount.stl'
1 'extruder_mount_bearing_holder.stl'
1 '2020_extrusion_mount.stl' or 1515_extrusion_mount.stl'
3 'M8_x_9mm_spacer.stl'
2 'X_endcap.stl' (optional)

Hardware:
3 of M8 x 30mm button head bolts for the 608 bearings.
3 of M8 nuts for the 608 bearings.
2 of M4 x 16mm button head bolts for 2020 aluminum extrusion mount
4 of M4 x 12mm button head bolts for mounting the Nimble stepper bracket to the
extruder_motor_mount.stl
4 of M4 nylon lock nuts for mounting the Nimble stepper bracket to the
extruder_motor_mount.stl
2 of M4 "T" nuts for 2020 aluminum extrusion
2 of M4 flat washers (optional)
2 of M3 x 16mm button head bolts for 1515 aluminum extrusion mount
2 of M3 "T" nuts for 1515 aluminum extrusion or hex nuts
2 of M3 flat washers (optional)
4 of 608 ABEC 9 bearings or other 608 bearings of your choice