X-Y plotter for beginners

thingiverse

A very simple X-Y plotter based on threaded rods is described in https://www.thingiverse.com/thing:2655181. Linear units based on threaded rods possess a very high resolution, yet a rather low speed, which makes them ideal for laser engraving but too sluggish for drawing. In contrast, timing belt driven units boast a very high speed, but a substantially lower resolution. Still, they are sufficient for most applications. Compare the movies in both Things. This Thing describes a timing belt type 1140 based linear unit, consisting of only two printed parts. The main section should be rotated 45 degrees along the Z-axis to fit on a standard 20x20cm printer. Print the slider with the timing belt slots facing upward; no supports are required. One central M4 bolt connects two identical units to form an X-Y plotter. Several holes are present for mounting to a base plate and installing a laser engraver or a pen holder. A timing belt pulley is included, fitting very tight to the stepper shaft. At the opposite side, an M6 bolt and nut support the timing belt.