Assembly guide

A motorised filter wheel, made out of a manual one. Work through the chapters in order: each one starts with the parts and the tools it needs.

• 0Parts, tools and printing — the general bill of materials, what to print and how
• 1Making it fit your wheel — the parameters page: skip it if your wheel is the reference one
• 2Heat-set inserts — all the inserts, in the order that keeps the iron reachable
• 3The collar and its gaskets
• 4The spring and the connector, before the arm — with the arm in there is no room for them
• 5Arm, bearings and pivot — in from below through the electronics opening, screw already on
• 6The clutch, before the motor — on the shaft it is caged under the roof
• 7The motor, up into the clutch — through the hatch; its screws go through the clutch
• 8Setting the preload — once the arm is there to push against
• 9The board in its panel — the board drops in between the two guides
• 10The wheel body — it slides in sideways, and the magnet goes on first
• 11Setting the air gap — measured and not calculated: the glue is in the stack
• 12The sensor, and closing up — the bracket reaches over the wheel, so it goes on last
• 13First checks — before you put it on a telescope

Every picture in this guide is rendered from the CAD model of the machine, so it cannot show a part different from the one you printed. Each part keeps the same colour from the first step to the last.