Marblevator Baby Steps Revisited is an improved design of my previous Marblevator Baby steps.

One of the improvements is that the stair steps ("Step 1.stl" through "Step 5.stl") no longer fall out when Marblevator Baby Steps Revisited is turned upside down (this improvement is thanks to grandkids and "how does it work" enthusiasts). Another is a small compartment designed to contain the "marbles" when not in use. Finally, the surfaces are smoother and more continuous than the previous design thanks to some of the design tools available in Autodesk Fusion 360.

The design features two operating knobs, one in the front and one in the rear. Either knob can be rotated in either direction to operate Marblevator Baby Steps Revisited, so it is easy for left and right handers to operate.

You will need to purchase at least one 8mm (5/16") diameter ball bearing to use as the marble.

I probably forgot a file or two or something, so if you have any questions, please feel free to ask.

Designed using Autodesk Fusion 360, sliced using Cura 2.3.1, and printed on both an Ultimaker 2+ Extended and an Ultimaker 3 Extended.

Step 1: Print and Prepare the Parts.

I printed my parts on an Ultimaker 2+ Extended and an Ultimaker 3 Extended using .1mm vertical resolution and 20% infill.

Print two "Knob.stl" and five "Cam Lobe.stl", and one each of the remaining parts.

Printing "Base.stl" with supports is optional. I printed one base with supports, and a second base without. With some cleanup, both worked fine.

Prior to assembly, test fit and trim, file, sand, etc. all parts as necessary for smooth movement of moving surfaces, and tight fit for non moving surfaces. Depending on the colors you chose and your printer settings, more or less trimming, filing and/or sanding may be required.

Carefully file all edges that contacted the build plate to make absolutely sure that all build plate "ooze" is removed and that all edges are smooth. I used a flat jewelers file and plenty of patience to perform this step.

<p>This is super mesmerising. I like the creativity in your designs. Where do you get your ideas/ inspiration from?</p>
Thank you very much!<br><br>For marble machines, I used to build them out of brass wire, then when I bought my first 3D printer, I build this: http://www.thingiverse.com/thing:60778. Since then, I try to make them either smaller, or just different such as this one.<br><br>I also enjoy automata, and I've received many thoughts and ideas from a history of very talented people who have created some wonderful machines.<br><br>And sometimes, I just want to make an air engine for example. Just jumped into my thoughts one day.<br><br>Thanks again!<br>
<p>I do so wish I had a 3d printer.</p>
<p>I'm not sure if you have any available budget for a printer, but I recently cancelled an order on a $1000 PRUSA (very highly regarded hence 8-9 week lead time!), because I was concerned I might not use the thing after a couple of weeks.<br><br>I did a bit of research and heard mostly positive things about the $200 Monoprice Mini Select, and I am BLOWN AWAY. It's built like a tank, very reliable, and the quality is as good as anything in the $1000 range. The only real limitation is the fairly small build volume (120mm cube). Free shipping on Amazon if you have Prime.<br><br>I've replaced broken stuff around the house (slowly learning Fusion 360), and printed a ton of fun stuff from Thingiverse.com.<br><br>Love this 'ible, think it might be my next print, thanks gzumwalt!!</p>
<p>thank you for the info. I will look into it.</p>
You're welcome, and glad you liked it!
<p>Mixed emotions right now; I'm glad you like it but sad you don't have a printer!</p><p>Is there a Fab Lab or equivalent near you? If so, perhaps they could help.</p>
<p>This is really great, and holy cow, I just found you on Thingiverse! <a href="http://www.thingiverse.com/gzumwalt/designs" rel="nofollow"> http://www.thingiverse.com/gzumwalt/designs<br></a><br>You are a force of nature sir! I'm glad I have lots and lots of filament! ;-D</p><p>Thanks for sharing all of your wonderful creations with the community!<br><br></p>
Thank you, thank you, thank you!<br><br>Your are welcome!
<p>Amazing. My grand daughter will love it. And now I have an excuse to get a 3D printer. Instructables, the gift that keeps on giving. </p><p>Thank you very much for posting. </p>
<p>Thanks, I'm very glad you liked it, and hope your grand daughter likes it also!</p>
<p>Nice toy. I like the size and simplicity. 3D printers are a wonderful thing.</p>
<p>Thanks, I'm very glad that you enjoyed it!</p>
<p>Thank you, I'm glad you enjoyed it!</p><p>I like both 3D printers and the wonderful design tools available. I used to use Sketchup but found its limitations cumbersome. When I found Autodesk Fusion 360, the available tools make it much easier to design much more complicated 3D objects. This revisit took me only a few hours using Fusion 360, but the original took over 3 days using Sketchup.</p><p>Technology, I love it!</p>
<p>This is a really good idea! If I had a 3D printer, this would be one of the first things I would make!</p>
<p>Thank you very much I'm very happy you like it!</p><p>Have you tried to locate a &quot;Fab Lab&quot; or equivalent in your area? They provide 3D printing and other manufacturing technologies for little or no cost.</p><p>Thanks again for your interest in this model, it keeps my inspired to continue designing, printing, testing and publishing!</p>
<p>There is one close, but I don't think I want to go there for this.</p>
<p>Thank you very much, I am very glad you like it!</p>

About This Instructable




Bio: Formally the owner of avionics (EFIS, FMS, etc.) and video game design (Tetris, Robocop, Predator, Michael Jordan in Flight, and a number of others) firms ... More »
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