|
|
Post by Rob on Nov 7, 2015 22:58:07 GMT
I want the build the eclipse but with a larger print area (thinking 500mm cubed) to maintain rigidity plan on using misumi 40x40 dual channel extrusions so that most of the eclipse parts will still fit and I know I would have to remake the z axis plate. What I am unsure of is whether the m10 guides and lead screw would need to be up graded as well? Any thoughts?
|
|
|
|
Post by all3dprinting on Nov 8, 2015 4:58:41 GMT
I would think that the 20X20 extrusions would be plenty for an expanded size, The only thing that would be the issue would be the xy slider horizontal rods and the amount they would deflect when the mass of the extruder drive and hot end are in the centre, if there is any deflection, this will have a big impact on print quality. This might still be achievable if you were to double the rods, 2 left, 2 right and 4 in the middle, a re-design of the sliders would be required. I think the M10 rods are pretty beefy in comparison to the M8's and I get fantastic print quality on my 3uP.
The next issue would be the bed, the way that the bed is cantilevered off the back is going to be an issue because your doubling the size and weight that is extended, this would possibly cause binding on the z axis rods and lead screw.... a doubling of the rods might work for this as well, but I would go back to a z axis similar to the 3uP, but I would probably make it lead screw left, m10 rod, lead screw right, m10 rod, and another m10 rod at the back giving an additional guide.
I don't know, everything you do is experimental! Good luck!
|
|
|
|
Post by Rob on Nov 8, 2015 8:07:01 GMT
I was thinking along the same lines about the z axis and I think if I enlarge and mirror the eclipses bed plate then use a larger stepper motor to drive the two lead screws via a toothed belt, it should eliminate any problems and still allow me to use the eclipse's pre-made parts.
|
|
|
|
Post by Rob on Nov 9, 2015 2:14:11 GMT
Here's what I have come up with so far...  I basically rotated the chassis 90 degrees to keep the front open for access, I don't foresee this as being a problem should just be a matter of swapping the x,y axes? |
|
