Can anyone give me a ballpark guesstimation of the force level it takes to push a 1.75mm filament through a .4mm hot end nozzle at a typical temp and extrusion velocity? Thanks in advance.by bingalls01 - Plastic Extruder Working Group
For what it's worth - my just previous iteration for this design moved the arm not the platform, but I realized that it would be easier to stabilize the swinging mass by mounting it on the stationary frame. Plus, the rotating platform is inherently more balanced and therefore requires less constraint. In addition it just seems easier and more accurate to work with gravity than against it - althby bingalls01 - Polar Machines, SCARA, Robot Arms
Thanks, I'll fix that.by bingalls01 - Polar Machines, SCARA, Robot Arms
I am a big fan of simple, I have always striven for simplicity in my designs. Recently having been inspired by the clean and elegant design of the Deltamaker printer, I challenged myself to come up with the simplest printer design I could. After several iterations, all non-cartesian, I came up with the Polar based configuration, shown here. Einbot ( a nod to A.E.) has only 4 moving components.by bingalls01 - Polar Machines, SCARA, Robot Arms