cnc-wire-bender

Open Source Project by ChrisBaehrig for a cnc controlled wire bender based on an arduino and cad fusion360 file

Concept and changes

The Hardware bases on the Idea of Pensas diwire bender (https://code.google.com/archive/p/diwire/ License: https://creativecommons.org/licenses/by-sa/3.0/us/) and the Project from HowtoMechatronics Wire Bender (https://howtomechatronics.com/projects/arduino-3d-wire-bending-machine/). Power electronic ist improved to for more durability and stronger wires. Software is new developed for the end to end production from the cad tool fusion 360 until the cnc wire bending

Workflow and Architecture

Frontend GUI Terminal

Overview GCode commands

G1 single Axis

Example: N4 G01 X10 I1500 Y2 J1200 Z9 K1300

• Row: 4
• Command: G1
• X-Axis: Angle: +10 degree, Speed: 1500 steps / sec
• Y-Axis: Angle: +2 degree, Speed: 1200 steps / sec
• Z-Axis: Angle: +9 degree, Speed: 1300 steps / sec

G2 multi Axis similstaniouly --> tbd

G3 Circle bending

Example: N4 G03 R100 Y10 Z10 L200 I1500 J1200 K1300 P0.1 --> tbd

• Row: 4
• Command: G3
• R: Radius + 10mm clockwise, Speed: 1500 steps / sec
• Y: Y-Angle: +10 degree, Speed: 1200 steps / sec
• Z: Z-Angle: +10 degree, Speed: 1500 steps / sec
• L: Absolute Lenght: 200mm
• (Optional) Correctionfactor P0.1 = 10% overbending

Example: N4 G03 R100 Y10 Z10 H2.5 I1500 J1200 K1300

• H: count of turns (2.5 turns)

G4 Wait

Example: G04 H5

• Wait 5 sec

G5 Wait for Event --> tbd

G28 Go Home

Example: G28

• Drive to home position

G92 Set all Positions to Null

Example: G92

• Set all Positions to Null to Calibrate

M10 Drive Wire to bender

Example: M10

• drive feeder 2000 steps

M11 Drive Wire for manuel cutting

Example: M11

• drive feeder 200 steps

M20 Pin down

Example: M20

• Moves Pin down

M21 Pin up

Example: M21

• Moves Pin up

M30 Program end

Example: M30

Serial connection API Commands:

variable	<	row	,	command	,	value1	,	value2	,	value3	,	value4	>
datatyp		int		int		long		long		long		float
X-Axis (bend)	<	1	,	1	,	steps	,	steps/sec	,	0	,	0.0	>
Y-Axis (feed)	<	1	,	2	,	steps	,	steps/sec	,	0	,	0.0	>
Z-Axis (turn)	<	1	,	3	,	steps	,	steps/sec	,	0	,	0.0	>
p-Axis (pin)	<	1	,	4	,	degree	,	0	,	0	,	0.0	>
Wait for taster	<	1	,	5	,	0	,	0	,	0	,	0.0	>
tbd	<	1	,	6	,	0	,	0	,	0	,	0.0	>
tbd	<	1	,	7	,	0	,	0	,	0	,	0.0	>
wait in ms	<	1	,	8	,	ms	,	0	,	0	,	0.0	>
switch debug	<	1	,	9	,	1=ON 0=OFF	,	0	,	0	,	0.0	>

Examples: <123, 1, 100, 2000, 0, 0>

<1,4,160,0> Pin oben <1,4,50,0> Pin unten

Changelog

[1.0.0] - 2022-10-10

• Initial release

Acknowledgements

Many thanks to

• Pensas diwire bender for the development the first bender
• How to Mechatronics for a lot of improvments

Disclaimer

The Projekt is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.