Z-axis floating-nut-arrester
Description
thingiverse.com/thing:2151
You will need to purchase the vertical rails and bushings listed in the wobble arrester materials list.
The design captures the Z-axis nut, have a smooth base which can slide smoothly under the acrylic and have a vertical pin to prevent rotation. it is all very simple and makes a huge difference in the smoothness of your prints because it removes the wobble from the rotating z-shafts.
I also printed a simple triangle to capture the z-rails, but the ones in the wobble arrester is far cooler.
Instructions
Pick up the Z-acrylic, remove the wood nut-stops
Then place one of the prints over each nut, with the pin facing out, pin UP naturally.
Replace the Z-acrylic and start printing smoother stuff.
AGAIN - go to thingiverse.com/thing:2151 for the cool vertical rail mounts.!
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I love it when someone can simplify things and still get the idea across! The triangle that goes to the rail is put on the platform with doublestick tape right?
Much simpler and uses less parts.
Aaron
Thank you Aaron,
Yes that is correct, 3M removable double stick tape, the fly-swatter design is diagonally to be rigid, the corner hole for the bushing might as well have been cut in the Z plate. ( coming to think about it, why is it not.? )
I need some kind of bushing on the vertical pins to make them tighter i
n the space, but it really do not matter as everything lifts at the same rate and the printer do not back up during a print.
I love designing, having a makerbot is like doodling in 3D. play with a idea then proceed and print it to see if it sticks.
Your XY stage is still the holy grail for me, c
an't wait to see the revision, I want to get printing on some of those parts.
Bo
License
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Just to let you know, I am one of the botless right now. I hate back seat drivers, but I wanted to run a suggestion by you.
Could you print the pin? Print the nut arrester and pin together?
Could you make the top of the pin a mushroom so that it clamps down on the acrylic? Then put some grease between the plastic and acrylic.
It seems you still have a slight wobble. Maybe using stiffer connections would help.
Brian,
Yes positively you can print the pin, Maki Yoshida did exactly that in his mod http://www.thingiverse.com/thi...
I did not print the pin because I wanted the smooth surface from the print stage to make the table slide as smoothly as possible.
To remove the last wobble I probably need to prin
t the anchors a bit thicker and probably should also use two bushings like Aaron Twotimes designed them. it also turns out that there are some wobble in the vertical rods, double thickness to 1/2 inch might make these much stiffer.
If I were to lubricate the floaters I would use graphite rather th
an grease to keep from collecting dust etc.