Kerf Shift: 3D Print & Laser

A friend asks what you'd charge for a lamp shade. You glance at the slicer, see 164 grams and six hours forty, and guess. Kerf Shift ends the guessing. Monday. Type the grams and the print time. A receipt prints itself line by line: plastic priced from the exact spool on your printer, power from your own tariff, printer wear by the hour, your hands-on time, a small buffer for prints that don't stick. Markup on top, price at the bottom. Pull the receipt down, tear it off, and the job joins the queue. Tuesday. The print starts and a little column of layers grows on screen as the hours pass. When time's up, tell it how the part came off the bed. A clean print takes its grams off the spool. A spaghetti mess takes only the share that actually went in the bin. Wednesday. The orange PETG feels light. Put it on the kitchen scale, type the number, and see how far your books drifted from reality.…