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3D-Printed Circuit Board v0.2

by CarryTheWhat, published

3D-Printed Circuit Board v0.2 by CarryTheWhat May 3, 2012

Description

You can support us by visiting our Etsy! etsy.me/16o3ZGE

The goal of this project is to enable the personal manufacturing of simple electronics, especially for Open Source Hardware -- with nothing except a 3D printer, your hands or equivalent, and the basic high-technology electronic components (capacitors, motors, transistors, etc -- but will eventually encompass ICs, microcontrollers etc). Instead of solder, wires, and breadboards, OpenSCAD generates a peg-board PCB and component holder, and a circuit can be hand-wound together with conductive thread.

This code base is intended to replace conventional etched PCBs, initially for very simple applications. Included is a basic feature set, described in the Instructions.

You can buy a lamp built around this design at etsy.com/listing/154340925/3d-printed-led-desk-lamp?ref=shop_home_active

Also check us out on Facebook: facebook.com/carry.the.what.replications !

Detailed instructions for use can be found on instructables.com/id/3D-Printed-Circuit-Boards-for-solder-free-printab/ , as part of the Make-It-Real Challenge (so your vote would be greatly appreciated!).

If you want to practice your trace wrapping, and would rather build something useful, I'd suggest building the LED Flashlight thingiverse.com/thing:22052 or Desk Lamp thingiverse.com/thing:27389 !

Recent Comments

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for the switch, you could just feed it a bit of extra wire to compensate probably.
Hm, you might be able to. I actually just bought some solid core exposed 24 gauge copper wire for the next iteration of this. I imagine it will work fine for just about everything --- the slide switch is the only component that really requires the flexibility of the conductive thread.

Also --- I no longer use the peg caps to hold the components in place -- after wrapping the conductive thread, super glue holds it in place better.
Could I use wire instead of conductive string, like some kind of wrapping wire?

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License

GNU - LGPL
3D-Printed Circuit Board v0.2 by CarryTheWhat is licensed under the GNU - LGPL license.

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Instructions

Tools and Materials
Currently, it has only been thoroughly tested on the MakerBot Replicator, with ABS plastic. Support for Up! soon (but the different tolerances prevent immediate support). I have tried several types of conductive thread, and the best so far (by a wide margin) is: members.shaw.ca/ubik/thread/order.html

I also suggest some fine tweezers & tiny scissors, for circuit wrapping and placing components.

Software
Programming was done in OpenSCAD. To use the library with OpenSCAD, download the .scad file, put it in the same folder as your file, and place at the top of your file
an include statement for 3D-PCB.scad

You will also need to use the MCAD library: github.com/elmom/MCAD

I have found success arranging the components in grids, in multiples of 'get_component_distance()', which is a standardized distance between pegs. Overlapping pegs between components allows you to save thread and time.

Print the parts with the standard replicator defaults or equivalent, with no raft and no support, in the proper orientation (as uploaded).

Alternatively, you can also place components free-hand. Either plot it out in OpenSCAD, or import the components in Blender -- but try to maintain roughly the same orientation for printing.

Detailed instructions for use can be found on instructables.com/id/3D-Printed-Circuit-Boards-for-solder-free-printab/ , as part of the Make-It-Real Challenge (so your vote would be greatly appreciated!).

Primary feature set:
-- power components: by default only 1, but support for multiple in series --
battery_holder_AAA(count = 1)
battery_holder_AA(count = 1)
battery_holder_button_cell(count = 1)

-- component holders --
component_capacitor(diameter = 5.5)
component_LED(diameter = 5)
component_2_LEDs(diameter = 5)
component_resistor()
component_transistor()

-- and tie it all together --
base_board(length, width, thickness)
peg(peg_height = 5, slot_width = 0.8) // start and end point for traces
peg_cap() // end cap for peg, print separately
SPST_slide_switch_base() // base structure of slide switch (place this)
SPST_slide_switch_toggle() //sliding structure of switch, print separetly
trace_hop() //for when traces cross, give two separate channels at 90 degree angle

-- functions for placing: this is the distance between the center
of any component and their pegs. currently limited by width of slide switch --
get_component_distance() = 13.5

Contribute
For the most up to date code, or to contribute directly to the project, github.com/CarryTheWhat/3D-PCB
To contribute indirectly, visit carrythewhat.com for our etsy store and other info.

Could I use wire instead of conductive string, like some kind of wrapping wire?
Hm, you might be able to. I actually just bought some solid core exposed 24 gauge copper wire for the next iteration of this. I imagine it will work fine for just about everything --- the slide switch is the only component that really requires the flexibility of the conductive thread.

Also --- I no longer use the peg caps to hold the components in place -- after wrapping the conductive thread, super glue holds it in place better.
for the switch, you could just feed it a bit of extra wire to compensate probably.
Madness... Cool, but crazy!
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