How can I get my 'Logan 5000' bevel cutter to be more accurate?

LOGAN 5000 8 Ply Mat Cutter

Logan Graphic Products 5000 8ply Bevel Mat Cutter for sale online

Bevel Mat Cutter For Framing Logan Mat Board Bevel

FoamWerks Foamboard Straight/Bevel Cutter (C)

How can I get my 'Logan 5000' bevel cutter to be more accurate

Logan #5000 8 Ply Cutter

How can I get my 'Logan 5000' bevel cutter to be more accurate

How can I get my 'Logan 5000' bevel cutter to be more accurate

LOGAN MOUNT - Tools - Artemiranda

Bevel Mat Cutter For Framing Logan Mat Board Bevel

Logan Graphic Products 8-Ply Mat Cutter and Blades