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Small laser plotter for PCB manufacture

This is my next attempt to build a laser plotter to do the exposing part in the PCB manufacture process.

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This is my next attempt to build a laser plotter to do the exposing part in the PCB manufacture process. I am trying to do this with a laser plotter since I do not like the toner transfer method (to much variables e.g. temperature, toner etc) and printing transparencies with the PCB layout. Ideally the process should be like this: Layout in KiCAD -> Gerber file -> GCODE -> Isolation path exposition with UV-laser.
The first attempt was my 'Yet another laser plotter' project and it failed because it was still not precise enought. In this project I build a smaller laser plotter solely designed for this task.

There a the following boundary conditions for this machine:
- Maximal working area for EU-standard formats (10x15 and 10x16 cm)
- Has to have a resolution so that 0.5 mm pin spacing can be done for SMD parts
- Use Opensource software
- Use readily available parts
- Not to expensive

This project is shelved.

I had some trouble with the lead screw and could not be bothered to buy a new one.

The generel principal works. For now I am making my PCBs the classical way (lithography and etching).

Maybe I am reviving this project one day, it is kinda cool.

For the documentation on how I make my one an two layer PCBs, see my other projects.

Nema11_mounting_plate_35x35.svg

Mounting holes for Nema 11 on 35x35 mm plate

svg+xml - 4.04 kB - 11/17/2019 at 20:22

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MGN9_2.svg

Mounting holes for MGN9 carrige

svg+xml - 3.81 kB - 11/17/2019 at 20:22

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Nema11_mounting_plate_30x30.svg

Mounting holes for Nema 11 on 30x30 mm plate

svg+xml - 6.93 kB - 11/17/2019 at 20:22

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  • 2 × Nema 11 stepper motor
  • 1 × Motor driver board with micro controller I reused mine from my 'Yet another laser plotter' project
  • 2 × 608ZZ ball bearing
  • 2 × 8 mm trapezoidal screw with brass nut, for 3D printers
  • 2 × 20x60 Bosch Aluminium profile, 340 mm

View all 17 components

  • Got distrected with other projects :/

    dechemist11/17/2019 at 19:58 0 comments

    Sorry for the long time without any updates. I got distrected with other projects like forging a caming knife, building a geiger-müller counter (not finished) and lockpicking. I will give my best to finish the project and documentation in the near future.

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