modular + mechanical desk fan!

hand-operated desk fan you can clamp to your desk and adjust the gear ratios as needed!

feel free to remix as you wish and adjust whatever you please!

build instructions will be split into different modules so you only need to print what you please :)

the most basic configuration that can be made is with the following pieces :

1 x fan arm assembly (see instructions)

1 x fan blade (see instructions)

1 x modular base 1 assembly (see instructions)

1 x driver gear (no instructions, just print)

fan arm

fan arm build requirements :

• 1 x fan arm - clamp

• 1 x fan arm - clamp bar

• 1 x fan arm - clamp stand left

• 1 x fan arm - clamp stand right

• 1 x fan arm - bottom arm left

• 1 x fan arm - bottom arm right

• 1 x fan arm - middle arm left

• 1 x fan arm - middle arm right

• 1 x fan arm - top arm left

• 1 x fan arm - top arm right

• 6 x joint caps

• 3 x 608 series bearings

• 4 x circular 6mm x 2mm magnets

fan arm build instructions :

position the clamp bar inside the hole of the clamp and either glue it down, or let it spin freely.

position both left and right clamp stands around the actual clamp so that it fits in, then glue both sides together.

glue a 608 series bearing into the clamp stand's bearing chassis.

glue both left and right bottom arms together and glue a bearing into the the bottom arm's bearing chassis.

glue both left and right middle arms together and glue a bearing into the the bottom arm's bearing chassis.

glue both left and right top arms together.

position the bottom arm's two pronged end over the clamp stand's bearing chassis and secure them together using two joint caps on both sides.

position the middle arm's two pronged end over the bottom arm's bearing chassis and secure them together using two joint caps on both sides.

position the top arm's two pronged end over the middle arm's bearing chassis and secure them together using two joint caps on both sides.

glue all 4 circular 6mm x 2mm magnets into the top arm's respective holes on each side.

fan blade

fan blade build requirements :

• 1 x fan blade - fan blade+gear

• 1 x 608 series bearing

fan blade build instructions :

glue the inside of the 608 series bearing to the extruded end of the top arm.

glue the outside of the 608 bearing to the inside of the fan blade+gear.

modular base 1

modular base 1 build requirements :

• 1 x modular base 1 - base

• 1 x 608 series bearing

• 2 x circular 6mm x 2mm magnets

fan modular base 1 instructions :

glue the inside of the 608 series bearing to the extruded end of the base.

note: you can attach any of the two big gears (driver gear or big gear) to this base by gluing the outside of the bearing to the inside of the desired gear.

glue both circular 6mm x 2mm magnets on each side of the base.

modular base 2

modular base 2 build requirements :

• 1 x modular base 2 - base

• 1 x 608 series bearing

• 2 x circular 6mm x 2mm magnets

fan modular base 2 instructions :

glue the inside of the 608 series bearing to the extruded end of the base.

note: you can only attach the small gear to this base by gluing the outside of the bearing to the inside of the gear.

glue both circular 6mm x 2mm magnets on each side of the base.