Adjustable Spirograph V9 by PG52

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MOC-7530

Name Adjustable Spirograph V9 by PG52
Designer 1963maniac
Designed 2016
Inventory 1656
Theme Technic
Central Perk
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Submitted by nigel1975 PRO July 28, 2019
Some notes I made on what each switch is controlling. For each switch I have labeled the positions 1-4 (following a convention used on the Eurobricks forum)
Submitted by nigel1975 PRO July 28, 2019
A test I made only changing the speed that the arms rotate (the two switches furthest from the turntable). I kept the the speed of both arms to be equal and looked at the effect of arm speed on the pattern of 'petals'. I continuously get a pattern of seven petals that completes in one rotation of the paper.
Submitted by nigel1975 PRO July 28, 2019
In this test I kept the arm speed to be the same and only changed the two switches closest to the turntable. By changing both switches equally I get more overlap of the patterns (requiring more rotations of the paper)
Submitted by nigel1975 PRO July 28, 2019
In this test I again kept the speed of the arms the same, but I changed only one of the switches closest to the turntable. In this test I got the effect of multiplying the number of petals to achieve patterns of 7, 14, 21 & 49.
Submitted by nigel1975 PRO July 21, 2019
Spirograph v9 has become much more advanced since I built v4.
Submitted by nigel1975 PRO July 21, 2019
Lots of patience required building this MOC.
Submitted by nigel1975 PRO July 21, 2019
The spirographs are much more complex than those from v4.
Submitted by nigel1975 PRO July 21, 2019
Endless possibilities, especially when combined with different gears on the drawing arms.
Submitted by nigel1975 PRO July 21, 2019
Included the turntable MOD and changed out the guide wheels (I don't have correct part but these work well)
Submitted by nigel1975 PRO July 21, 2019
For holding the paper I prefer the clamps from v4 and included them for the MOC.
Submitted by nigel1975 PRO July 21, 2019
A lot of fine tuning was required in order to ensure consistent patterns drawn. Important to use a free flowing pen to avoid too much friction.
Submitted by jokey02 July 28, 2017
Submitted by jokey02 July 28, 2017