Loading

This Thing is currently under moderation: due to missing STL files
Files and images for this Thing are currently unavailable.

(moved) Gearless Follow Focus for Shoulder Rig

by MarcusWolschon, published

(moved) Gearless Follow Focus for Shoulder Rig by MarcusWolschon Apr 2, 2011
Share

Contents

Use This Project

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.

Print Thing Tag

Thing Statistics

Views Downloads

Summary

THIS DESIGN HAS BEEN MOVED TO YOUMAGINE:
https://www.youmagine.com/designs/gearless-follow-focus-for-shoulder-rig

Reasons:
http://marcuswolschon.blogspot.de/2014/01/leaving-thingiverse.html

Instructions

Assembly is trivial.
I don't really need to write anything about that here. ;)

This is a very simple follow-focus using a roller-blade or skateboard -wheel instead of gears.
It's great to experiment with a follow focus on a shoulder-rig without investing a lot of time and effort into a more complex geared or even remote follow focus.

See http://www.thingiverse.com/thing:7256 for a much cooler but also more complex design requiring electronics and microcontroller-programming.

Update:
I added a (not yet tested) straight version of this follow focus because with my new matte box there was not enough space to mount this anymore.

Video:
http://www.youtube.com/watch?v=FHwVil_Lvcg&feature=player_embedded

blog post:
http://marcuswolschon.blogspot.com/2011/04/printing-gearless-follow-focus.html

photo album:
https://picasaweb.google.com/Marcus.Wolschon/20110325Bis201105ShulterRigBauen?feat=directlink

forum post:
http://forums.reprap.org/read.php?88,75536

project in my personal wiki:
https://sourceforge.net/userapps/mediawiki/marcuswolschon/index.php?title=Projects/Camera/ShoulderRig#status

IF YOU HAVE NO ACCESS TO A 3D-PRINTER AND CAN't FINE SOMEONE ELSE TO PRINT THESE FOR YOU, YOU CAN HAVE SHAPEWAYS PRINT THESE FOR YOU:
http://www.shapeways.com/shops/marcuswolschon?section=Camera+and+Filming

All Apps

Upgrade this Thing with Thingiverse Apps


No results.

Added a straight version for short lenses that does not get in the way of a matte box or other large things in front of the lens.

I found the straight version to need more room to adjust it's location.

V1 turned out to work fine with the skateboard-wheel but I needed it longer for the inline-skate-wheel.

So here is version 2.

V2.2 has a larger rounding between the vertical part and the base,

to make it even more stable and some slits in the lower levels to reduce warping.

(It is longer then the bend one and thus easier affected by this)

Why not separate into two pieces and make the angle adjustable?

I'm not sure.

Would anyone actually need an adjustable angles?

Where to place the bolts (at least 2 due to the skate-wheel being FIRMLY pressed against the focus-ring of the lens) without interfering with the 15mm rod?

I guess it's possible but quite complex. Considering that the pointer also needs to be adjusted as well and the axis of rotation is in the area of the rod and the wing-bolts that fasten the rod.

Any suggestions of how such a mechanism would look like?

Myself I'm currently planning a geared follow focus and a gearless adapter sitting betweel 2 cameras to pull focus for stereo-shoots. (I don't think such a thing exists yet.)

You're welcome. :)

I also added a counter weight attachment:

http://www.thingiverse.com/thing:7518http://www.thingiverse.com/thi...

Counter-weight for shoulder rig

This is beautiful man!

Thanks a lot. :)

I really, really appreciate such feedback.

It's what keeps me going.

Top