Notebook Drafting Machine
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Who as a child didn't want a drafting machine in their bedroom?? ....Just me, oh, OK. Well I made one for my Notebook.
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Updated at source:
Model information
- Source
- Printables
- Category
- Tools
- License
- GNU General Public License v3.0
Background
I stumbled upon the Miniature Notepad Drafting Arm by TensorFlux and had to have one!
It was just far too delicate for me to carry around in my EDC notebook.
So this is my version of it
Design
I designed it to be as flat and sturdy as possible - only 7.5mm thick- so I can close the notebook without fear of breaking it.
All 8 pivot points have press fit miniature sealed ball bearings for silky smooth and precise movement
The Square, Protractor and Knob are press fit together and provide a good amount of friction to hold the Square at the correct angle.
The Protractor has gradations at 10deg intervals and the Knob has a point to indicate the angle.
The Square is 70mm horizontal x 30mm vertical
Print Instructions
Orient all parts with the flattest / featureless surface on the Platter.
I used these settings and had great results
- no supports
- outside perimeters first - to maintain dimensional accuracy
- 40% honeycomb infill
- 3 top / 3 bottom / 4 perimeters
The filament I used is finicky - its a matte PLA - use the settings that work for you
- 240C extruder
- 1.2 extrusion multiplier
- 50C bed
Assembly Instructions
See Exploded view for reference
- 4x Arms
- 1x of all other parts
- 8x Sealed Ball Bearings 4x7x2.5
Sand, File, Wet Sand, Ream Holes as needed for desired surface finish
Press in bearings - I used a 12 ton hydraulic press - just because I could
- 2x into the base
- 2x into Protractor
- 4x into linkage
Insert Square into bottom of Protractor
Carefully align point of Knob to the Square (it is not indexed) and firmly press into place - ensure Square and Knob rotate relative to the Protractor with some resistance
Align and press 2x arms into bottom of Protractor and Linkage
Align and press 2x arms into top of Base and Linkage
Clip to the top left corner of your notebook with a binder clip
DRAW!
Future Revisions
Metal straight edge insert - with or without a scale
More precise Protractor - might need to printed with resin
Slightly longer Arms - for Linkage to Protractor
Sturdier Arms - place a steel rod in while its printing
Etc.
Thank You