Polygonhell Wrote:
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> I'm using a standard Wades extruder and a generic
> hobbed bolt on 1.75mm filament without issues.
> Unless the bolt is hobbed so deeply the filament
> doesn't touch the idler, I can't really see how
> it's an issue.
It can be an issue if the extruder body is designed with tight clearances for the filament path, in order to prevent the filament from kinking between the drive bolt and the nozzle.
That said, I don't think I've ever seen anyone sell a different hobbed bolt for 1.75mm filament - usually it's just the filament path in the extruder body that changes.
For using your existing extruder body, you could try lining the filament channel with plastic tubing.