Very interested in this project.
https://www.kickstarter.com/projects/e3dbigbox/the-e3d-bigbox-3d-printer
Yet another 3D printer kickstarter! But now it’s one I have to try and defend.
I’m just about to go to bed, but do leave any questions here, and I’ll be back to answer.
I’d also be interested in any suggestions or feedback on what you guys think of the printer so far. Do be as critical as possible, the no bs attitude, backed up with knowledge in this community is what keeps me coming back to this place.
Kinda disappointed in the fact that it carries the motor around on the Y axis, but it is what it is. I really like the stacked acrylic for the platform in order to keep rigidity. That’s something I haven’t thought of doing. It looks like it’s going to be a successful printer. That’s why our printer isn’t selling: No reputation, too high of a cost, too complicated of an assembly process, etc.
@Sanjay_Mortimer The Bigbox frame only package, is the double stacked bed included in that?
@Sanjay_Mortimer do you have a more detailed page with relevant specs, besides the KS one (which is rather simplified)?
Looks interesting, reminds me Zortrax M200 Kickstarter campaign 2 years ago (and now this machine is still a quality beast). I am afraid I have to stick with my Printrbot and upgrade to E3D V6 hotend as it has a huge renomé. (Ubis hotend doesn’t perform well.) I hope BigBox will not take a delay.
The Z stage would be more stable in “A axis rotation” (rotation about the X axis, build plate wobble) if you put the linear rods adjacent to the Z screws. You want the XY constraint as close to the Z actuator as possible.
Serial Cartesian gantry is ho-hum. Why not CoreXY?
What’s the steps/mm for the XY gantry? I’d actually recommend LOWER drivetrain resolution to optimize performance with 8bit controllers. XY print flaws are almost entirely caused by gantry compliance and extruder flow/control issues, so it’s hard to see the benefit of going even finer than the usual here.
I’ve seen aliasing caused by step detents that pretty much went away just by swapping out to 0.9 degree motors. You can make up for the limitation of the uC by reducing the micro stepping, i.e. 1/8th instead of 1/16ths. So the reduction they show is probably pretty sound.