Whilst the polygraph is colloquially related to pseudoscientific lie detector exams, the true invention of the primary polygraph was once designed to routinely replica the pen strokes of anyone writing. Famously, a polygraph was once utilized by former US President Thomas Jefferson in his “fashionable workplace”, a reproduction of which nonetheless sits within the Smithsonian museum. Few folks have a necessity for a pen-based polygraph anymore, however inspiration from the centuries-old invention can nonetheless be gleaned from the system, like on this 3-d printer which will output 4 similar prints immediately.
The printer is a Core XY design with 4 separate print heads, which might be all locked in combination. The printer behaves as though there’s a unmarried print head which assists in keeping it more effective than it another way may well be. Some further attention must be paid to the print mattress to make sure it’s stage and flat, and it additionally features a distinctive Z-axis designed to stop Z-banding from deficient high quality leadscrews. It has a quite extensive print space, however a noticeable restriction is that it’s necessarily quartered, so whilst it may well produce many portions immediately, it may well’t produce a unmarried section that makes use of all the space of the print mattress.
Each and every revealed section used to make this printer was once designed by way of [Rick] in OpenSCAD. He additionally constructed a customized electronics board with the printer drivers, and all different related circuitry in KiCad. For somebody who prints huge volumes of portions, this may well be simply the trick to extend output with no need to control extra printers. If you have already got extra printers and want an more uncomplicated option to organize all of them, check out this devoted Raspberry Pi set as much as do exactly that.