Prusa Research are well known for their I3 series 3D-printers, the current model is I3Mk3S that has been in the market since spring 2019. In October Prusa released the new Prusa Mini Printer, a somewhat smaller 3D printer with a price tag that is less than half of the Prusa I3Mk3S kit. The Prusa web shop opened for pre-orders on October 24 and got more than 1000 orders during the first 24 hours, although the lead time was about 6 weeks, photos 1 and 2. In various 3D-printing forums the design was discussed and there were a lot of questions regarding the single Z-column design, is it stable enough to get a good printing quality? After running the printer day and night for several weeks I can confirm that stability is no problem, the print quality of the Prusa Mini is even better than the I3Mk3, photos 3 and 4.
The specification for the printer is quite promising. Print volume is 180x180x180 mm (7 x 7 x 7”), magnetic heat bed with removable spring steel sheet, maximum nozzle temperature of 280 °C and maximum bed temperature of 100 °C enabling printing in the most frequently used 3D materials such as PLA, PETG, ABS, ASA and flex, but too low for some exotic materials. The extruder uses V6 standard nozzles with a diameter up to 1 mm. A brand new 32-bit motherboard named Buddy controls the printer. The user interface is handled by a rotary encoder on the LCDmodule that has a 65k colour LCD. The Mini uses USB as print medium but can also be connected by LAN and Wi-fi (this needs a separate module that is yet not available). The software is prepared for external control for running the Mini in print farms, but this feature is yet not enabled.
Continue reading your story on the app
Continue reading your story in the magazine
Readers' Workshops - Patrick Cubbon
Patrick Cubbon describes his workshops – a portable one from 1963 and the current accommodation
Desktop Gear Hobbing
Toby Kinsey has designed this fascinating piece of gearmaking equipment
The John Stevenson Trophy 2020
Many readers and forum members will remember John Stevenson, a contributor to MEW but best known for his larger-than life presence on the Model Engineer forum.
From the Archives: Twist drill Sharpening by the Four Facet Method
Giles Parkes, MEW Issue 64, February/March 2000
Dividing on the Warco 220 Lathe
Peter Shaw describes a mandrel dividing attachment for this popular lathe that can be adapted to fit many other benchtop machines
Stub Mandrel offers some advice on choosing the right steel for the job
A Storage Story
Robin King shares the lessons learned from his experience of workshop moves
A Simple Drill Grinding Aid
A newcomer to our hobby was having trouble sharpening drills, so Howard Lewis made a simple aid for him
Yet Another Bodge-Up!
Peter Shaw finds a use for some aged homebrew slot drills.
Workshop Press Tooling Part 2
Will Doggett makes a set of tooling for his press tool described starting in issue 285