An eBay vendor has a 3D printer electronics kit that includes everything electric/electronic except a power supply for $219.95. They say their motors are 12V. I asked how much for that kit without the motors. $159 but they claim the 85 oz/in 6V 1.2A motors I have won't work with it.
My printer will have a very rigid frame, made from a piece of test equipment that likely orginally cost a few grand but cost me $10. :-) The Z axis slide is already part of the frame and the X axis for the extruder will run on an HSR25 rail while the Y axis for the table will be a single HSR30 rail - possibly with 'outrigger' roller bearings if there's any detectible rocking. Doubtful since the THK block and rail I have are very smooth moving.
Since the moving parts are going to be more massive than on the typical lightweight printer, I'll need those higher torque motors. Ballscrews will be used instead of belts.
I *was* going to build a frame of 40x40 extrusion, double braced with corner brackets and plates at every joint, but for $10 I have all the rigidity ready built. I've seen a Solidoodle 2 in operation, with the platform supported on just one side, and I could see it wiggling sideways very slightly, causing a slight ripple in the layers. That will not do for *my* printer. :-)
28.5" tall and 11.25" between the vertical posts.
![flic.kr]( "flic.kr")
Impact tester by g_alan_e, on Flickr
My printer will have a very rigid frame, made from a piece of test equipment that likely orginally cost a few grand but cost me $10. :-) The Z axis slide is already part of the frame and the X axis for the extruder will run on an HSR25 rail while the Y axis for the table will be a single HSR30 rail - possibly with 'outrigger' roller bearings if there's any detectible rocking. Doubtful since the THK block and rail I have are very smooth moving.
Since the moving parts are going to be more massive than on the typical lightweight printer, I'll need those higher torque motors. Ballscrews will be used instead of belts.
I *was* going to build a frame of 40x40 extrusion, double braced with corner brackets and plates at every joint, but for $10 I have all the rigidity ready built. I've seen a Solidoodle 2 in operation, with the platform supported on just one side, and I could see it wiggling sideways very slightly, causing a slight ripple in the layers. That will not do for *my* printer. :-)
28.5" tall and 11.25" between the vertical posts.
