Alps Plotter Repair

The Alps plotter mechanics can be found in numerous plotters under various brands:
ALPS DPG-1302
Astron MCP-40X
Atari 1020
Canon X-710
Casio FA-10
Casio FA-11
Commodore 1520
Mattel Aquarius 4615
MCP-40 (not the Oric one)
Olivetti PL 10
Oric MCP-40
Sega SP-400
Sharp CE-150
Sharp CE-515P
Sharp CE-516P
Sharp CE-1600P
Sharp MZ-1P01
Sharp MZ-1P16
Silver Reed EB50
Sony PRN-C41
Tandy 26-3605
Tandy CGP-115
Texas Instruments HX-1000
Vtech Laser PP-40I

Almost all plotters are experiencing cracks in the motor pinion. These can be replaced with more durable brass alternatives, available here:
* https://www.ebay.fr/itm/133559488667?mkcid=16&mkevt=1&mkrid=709-127639-2357-0&ssspo=O5hE0ykzR3q&sssrc=4429486&ssuid=jtrGAlVLR-O&var=&widget_ver=artemis&media=COPY

Unfortunately, most plotters also feature an anti-backlash roller gear prone to cracking, for which no replacement currently exists. These prints can help you bring your old plotter back to life:
* The ‘MCP40 clamp v4’ file includes the Fusion