What the thread found

• A missing screw on an M-One motor can be used temporarily if remaining screws are tightened securely, though the screw should be replaced to eliminate gear play.
• The screws are M2 specification, approximately 5mm long (excluding the cap head), and can be sourced from standard hardware suppliers.
• A broken screw shaft stuck in the motor can be removed by an experienced machinist using a left-hand drill bit in a drill press, though stainless steel screws are extremely difficult to remove from soft aluminum.
• Removing screws from the stainless steel ring on the motor should be avoided as the bearing underneath is delicate and difficult to work with.
• Electrical discharge machining (EDM) can be used to remove a broken screw and allow for replacement without disassembly damage.

Depends on

• The advice about left-hand drill removal assumes access to proper equipment and machinist skill.
• The difficulty of removing stainless steel screws from aluminum suggests some screws may be stainless while others are not.
• No confirmation provided about whether loose gear play causes functional problems or long-term damage.

Parts

Follow Focus

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