sometimes ago , a member of this Forum ( bugsbunny88 ) contacted me to create an open source 3D printed pen.
After a lot of back and forth by email , we settled down on a design.
The design was done using openScad open source software.
Although I might not release the source(I may one day..with some heavy code cleaning first..) , I will post the .stl file needed to reproduce the pen on any 3D printer.
I think these will be released on Thingiverse .
All the threads are 3D printed , even the internal thread inside the section to attach the nib unit.
So theoritically you should not need any other tools than a 3D printer , a nib unit and a cartridge.
In practice , it looks like you need a well calibrated printer.
The nib unit we choose is a Jowo #6 nib unit, and a standard international cartridge will fit nicely.
I will provide 3 different sections : a bezier shape (white on the picture) , a conical design , and a conical design with grooves.
The point is you can customize it to your taste , and color.
The pen is 143mm long capped , 135mm. uncapped
Barrel diameter is 13.5mm, Cap Diameter is 16mm.
The barrel and the s not round , it has 20 sides , it looks round but it is not.
The top of the section (close to the nib )is 11mm while the part close to the barrel is 12mm.
Cost of material should be around $1 , however I think you will need to print several test before to obtain a proper result.
- It should take 1h30 to 2h30 depending the speed and the number of parts you print at once. I suggest to print barrel/Cap/section separetely.
- very slow print speed (40mm/s or less )
- if you go extra low , you need to lower the temperature a bit.
- Printed in PLA but NGEN or ABS should do
- For ABS, a scale factor 1% might be necessary due to shrinking process
I did not have time to apply the finishing layer , I will post once I will have a solid result.
Feel free to give your feedback !
I am ready to ship the 3D printed parts (no nib) if someone would like to try :-)
PS: I would like to really thank bugsbunny88 ,not only he drove the design and the idea , he challenged me on few details , and actually I had to rethink some of my way of designing. Thank you Sir !
Edited by ZoidbergFr, 09 January 2017 - 21:56.