Magnetic Polargraph Pen Holder

Here is my magnetic pen holder for Polargraph gondola .

I designed it to very quick pen exchange without loose any coordinate or made heavy movements aligning the pen. I'ts really atach and deatach the pen very quick and softly.

VIdeo : https://www.youtube.com/watch?v=zCL0oEaDoE4&feature=youtu.be

Material needed :

2 - printed parts
3 - M3 bolts and screws
3 - Magnets 5mm x 5 diameter from: www.supermagnete.com Item: S-05-05-N Disc magnet Ø 5 mm, height 5 mm, neodymium, N45, nickel-plated

Process :
-Print the parts and clear the holes to let enter the magnets softly and firmly.
-Insert the magnets with a lillte drop cyanoacrylate glue , Must be inserted in the same position to define a correct plane , and let 0,5mm over the plastic face.
-Insert the bolts and screws to fix the pen.

1000 thanks to polargraph bigBoss, Sandy, to let us introduce in this fantastic polar world !

Enjoy ! :)

Josep Maria

New : Calibrator : http://www.thingiverse.com/thing