Bộ chuyển đổi (adapter) bút gel cho máy Plotter

Plotter pen adapters which use the original conical tips for centering and holding the refill in place.

Separate models that should be compatible with following pens

• Uniball Signo -> UMR-1, UMR-10, UMR-5N refills and similar shaped refills used by most non clicky Uniball Signo pens

• ArtlineSoftline -> ArtlineSoftline 1700, 1900 (probably 1500 as well)

• ArtlineSoftlineShort -> older? 0.5mm shorter variation of pens

• eddings -> edding 2185

Might be possible to adjust the parameters for other pens with similar design. 

Usage tips:

When the pen refill is inserted in adapter it should be slightly loose with room for side to side movement just like in the original pen.  The refill gets centered by the cone.  After screwing on the cone the refill should be held firmly in place with no play in any direction.

Holding and unscrewing the conical tip especially once it's partially covered by adapter can be tricky. Use a rubber glove for extra friction.

If you are printing multiple versions make sure to mark which one is which. It's hard to distinguish them visually.

Depending on how your plotter holds the pen the top part might be optional. But it also helps with reducing stress on the delicate front part and is convenient for storage.

Printing Tips

This is a tricky print the fine thread used by tip of pen leaves little room for errors. Small round shapes tend to print smaller than designed even on otherwise well tuned printers. Some test prints with adjustments in parameter spreadsheet will be likely required to adjust it for your machine.

After printing doesn't hurt to do a quick cleanup of inside with a file.  The inside diameter isn't a critical dimension, but it must allow the refill to have some side to side movement before the cone is attached.

Tested on Prusa mini with following print settings:

• layer height:  0.1mm

• PETG

• Perimeter generator: Arachne (required for all the very thin walls)