I'm painting a CNC mill after dissassembly and cleanup.
The question i have is to weather to paint the mating surfaces (machined surfaces) or not to.
These are parts like servo motor mounting adapters that bolt to the bed and servo, or ball srew bearing housing parts.
So essentially it looks like the machine was originally all put together dry (no coating) and then primered and painted in assembled condition.
But when piece mealing the machined back together it makes more sense to paint the parts first then bolt together as i can't deal with the entire machine at once.
I know the concern is painting mating surfaces will lead to a change in parallelness when assembled (different paint uniformity).
On the other hand it makes it easier to paint the entire object rather than tape of the interface.
Any thoughts on this - what do most people do when repainting a machine?
Thx
Paul
The question i have is to weather to paint the mating surfaces (machined surfaces) or not to.
These are parts like servo motor mounting adapters that bolt to the bed and servo, or ball srew bearing housing parts.
So essentially it looks like the machine was originally all put together dry (no coating) and then primered and painted in assembled condition.
But when piece mealing the machined back together it makes more sense to paint the parts first then bolt together as i can't deal with the entire machine at once.
I know the concern is painting mating surfaces will lead to a change in parallelness when assembled (different paint uniformity).
On the other hand it makes it easier to paint the entire object rather than tape of the interface.
Any thoughts on this - what do most people do when repainting a machine?
Thx
Paul