This is the printer that shall be built. It was decided that to make a good printer, the design must be kept simple. From previous blog posts you can see that  the “core xy” method of xy movement was tested using a build platform . A very interesting way of doing of things, but for my first time building a 3D printer from scratch, it would not be suitable. It had some inherent problems. Mainly that the two belts used must have equal tension at all times and the placement of pulleys to guide the belts was problematic. My core xy was fully functional, but there were doubts about its repeat-ability and accuracy over long prints. I will probably build a core xy type printer in the future, but only when i can afford a higher budget. When industrial grade belts could be bought etc. Now my final printer design for this summer is called the Vulcan 400 named after the roman god of smiting and volcanoes. 400^2(mm^2) is the general build area possible for the printer. (Though with some modifications it could print even larger) The xy motion platform is very simple. Two stationary stepper motors giving motion to the two y gantry’s. A stepper motor attached to the y carriage giving motion to x carriage. Another two stepper motors will move the build plate. My experience from my previous 3d printer designs showed my that keeping the number of different parts down to a minimum. Modularity was key. The design brief was to insure that it could print big. I needed something that could print parts for engineering projects in college. Well its a beast of a printer. Measuring 720mm x 660mm x 600mm (width x depth x height) The chassis is made 30×30 B-type 8mm slot aluminium profile. The brackets supports for the frame are solid metal. The z axis uses a 16mm induction hardened chrome plated linear shaft. The y axis also uses this linear shaft. The x axis uses a 12mm linear shaft. Standard lm12uu and lm16uu are being used. These are linear ball bearings. Very standard for 3d printers. The build platform is supported by 20×20 b-type 6mm slot aluminium profile. The glass build plate is mechanically attached to build platform on adjustable springs. Allowing myself to level the build plate. The z motion is utilized using tr8*1 300mm long trapezoidal lead screw. The pitch of the lead-screw is 1mm per rotation. Motion is transferred using gt2 belt. More detail will provided in future posts.


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