[MOC] Spirograph V2

[Nalyd997]

Hey everyone! Finally found some time to shoot a video for my second spirograph. 

I actually had this finished over a year ago but you know how life works sometimes:) Thanks to PG5200 for describing to me how his V5 works which largely inspired this one.

To address the question I get asked all the time at exhibitions "Can you get two going at once?" I came up with this:

These are drawn simultaneously, which you can see in the video here: 

Thanks everyone:) I'll have an LDD file on the way shortly

[SERVATOR]

Awesome! 

Quote

 I'll have an LDD file on the way shortly

Thanks in advance!

[1963maniac]

That's a brilliant idea on the dual arms. I'm gonna try that on my V9 PG52 Spirograph. 

[OneMoreRobot]

Excellent work and video, I look forward to building this contraption ?

[Nalyd997]

Hey everyone, last night I finished up the ldd file for this spirograph. Just submitted it to Rebrickable but here is the link to the file: http://bricksafe.com/files/Nalyd997/Spirograph V2.zip

 

 

There were a few issues with alignments so I am yet to make the fixes for them obvious, until then enjoy:)

[GordyMcPatty]

Very cool!

[TechnicRCRacer]

This is amazing! It doesn't get the recognition it deserves! How do the gearboxes work?

[Nalyd997]

8 hours ago, GordyMcPatty said:

Very cool!

Thank you:)

6 hours ago, TechnicRCRacer said:

This is amazing! It doesn't get the recognition it deserves! How do the gearboxes work?

Thanks for your kind comment. Starting from the top, the first two gearboxes select the primary speed of the arms. The input is from the motor and the outputis into one side of a differential. The central gearbox not only controls the speed of the turntable, but the input to the secondary gearboxes. These gearboxes feed into the other side pf the differential and add/subtract rotations in the arm based on the turntable. Hope this helps :p