Dollo 3D Printable 3D Printer

[spegelius]

Mounting Y and X axis motors.

Vitamins:
- 9 x 50mm M3 screws
- 3 x stepper motors with gears assembled

Other parts:
- 4 x bow_tie.stl (see previous steps for print info)

Y-axis:
Take one motor, two motor_mount_small parts and 3 50 mm M3 screws . Assemble and screw the screws in only couple of turns:
https://www.dropbox.com/s/y173f3t5ym...31.58.jpg?dl=0
https://www.dropbox.com/s/isyfxwuiz7...06.17.jpg?dl=0

Next, slip the assembly on the rack. If it doesn't fit, open the screws more:
https://www.dropbox.com/s/x682jr7uwu...06.21.jpg?dl=0

Tighten the screws until the mount needs considerable force to move. It's a good idea to move the mount back and forth while tightening the screws. Move the mount through whole length of the rack. Turn back the screws in small increments until the mount moves relatively easily. Don't expect it to be buttery smooth and move freely, there are no bearings here.

Repeat the operation on the other side of the frame:
https://www.dropbox.com/s/sxynn7bevq6b5uo/2018-02-25%2014.47.14.jpg?dl=0

X-axis can be assembled before assembling the motor mount for it, because the motor mount can be slid in and out freely.
To mount the x-beam on the Y-mounts, first move the Y-mounts to the end of the racks:
https://www.dropbox.com/s/dw5t56if961lm7z/2018-02-25%2014.47.33.jpg?dl=0

Then slide the x-beam on the tie slots on the Y-mounts:
https://www.dropbox.com/s/5erg4vkb8fcwiih/2018-02-25%2014.47.52.jpg?dl=0

The bottom of the rack should be approximately on the level with the Y-mount top:
https://www.dropbox.com/s/3bii49ml4e8ngtq/2018-02-25%2014.49.44.jpg?dl=0

Add bow_ties to the bottom of the Y-mount and x_spacer junction. Assemble motor mount for the X-axis same way as for the Y-axis.
https://www.dropbox.com/s/rh7cfco4veirkrs/2018-02-25%2014.54.51.jpg?dl=0

Moving the mounts might seem bit rough and that's expected. These are printed parts so there will always be some unevenness. But in this case things will get better; after a some time printing with Dollo, the parts will adjust to each other and he movement will get somewhat smoother.