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Hi Everyone, this is my latest open source 3D printer design.
Before I decided to design this 3D printer, I was looking for an open source 3D printer design which I just can take over and build myself. Checking the many available open source design, I realized none of them are really as I would like this printer to be, so I decided to design my own version of a Core XY printer in which I have integrated most of the best ideas I have seen during my 3D printer research.
The key features of this design are: - Based on Duet WIFI + Panel due control boards; - XY Core design - very accurate and fast printing; - All axis slides on MGN rails; - Dual color hot end; - Maximum XY speed 300mm/s; - Open front structure; - Very compact design, smallest overall size VS print area; - Low noise – passive cooling for the motors and soundproofed walls.
Here you can see the printer in action printing up to 250mm/s with its new remote direct extruder setup: Print testing between 50-250 mm/s: https://youtu.be/4bbcH8Qa4JU
result look pretty decent. Tried also 300mm/s where slight under-extrusion was visible at the print areas where the printer actually reached that speed. Printing with 150mm/sec: https://youtu.be/83xA3AYlX5c Extruder stepper in action @150mm/s printing speed: https://youtu.be/7qfuxtMpvR4
The build area is completely customizable. The maximum build size for this frame shall not be bigger than 300x300x300mm – see attached frame calculator. My printer is built for 275x220mm heated bed build plate and 250mm height. Overall printer size is 470x395x445mm.
My main objectives for this design was to have the size of the printer as compact as possible. I wanted to reach standard printing speeds over 150mm/s without compromising the print quality. For this reason, I have focused my design on the X carriage to be as light as possible. You must consider that the energy (e) of the moving mass (m) is exponentially increasing with speed (V).
e=(m*V^2)/2
As example, to go from 100mm/s to 200mm/s would require 4 times lighter moving mass, which obviously is not possible. Therefore, to reach higher speeds without compromising print quality we would need four times more rigid frame and power from the XY motors.
I have made the design fully open source. I have used SketchUp for the design (I already regret it) now I’m working on moving the design into Fusion 360, not a simple task!
To build this printer you will require a lot of patience (it took me more than one week to complete) passion for 3D printing and technical abilities both electrical and mechanical. I guarantee the result will worth all the effort!
To do List - Upgrade to geared dual drive BondTech extruder (the one I have now is not geared, at high printing speed under extrusion starts to became a problem); - Integrate an additional 5V supply + USB TYPE A connector for supplying external IP webcam; - make some nice pictures / video to show the awesome print quality of this printer; - finish documentation and instructions; - design a new fan-duct for high speed PLA printing - this "monster cooler" is not bad but I have seen designs with similar results using only one fan - apparently the long duct has also some negative effects.
Note: I will do my best to update the project regularly!
P.S. Marked as a remix of "BLV mgn Cube" with permission/request of BenLevi. Thanks Ben for the great work you share with us :).
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