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OSE Dev Team Meeting Agenda

Tue July 3, 2018

2 PM CST USA time

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  1. Agenda - Progress Reports
    1. Marcin - 15 min Intro.
    2. Michel - 20min
    3. Spencer - 15 min
    4. Ruslan - 15min
    5. Eric - 10 -KiCAD to FreeCAD
  2. Task Allocation
    • Note taker -
    • Meeting Maintainer
      1. Embed meeting on Dev Team Log, including YT, notes, and edit link
      2. Insert current Effort Graph-
      3. Post notes and video on OSE Workshops FB page
      4. Organize old meetings - hide older than 1 month
      5. Assign Roles and Introduce the meeting

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Notes

Marcin

Workshops are important

  • Deadline for application 1st August for immersion Program
  • https://www.opensourceecology.org/cnc-circuit-mill-workshop/
  • Iterative builds to improve parts and assembly procedure (D3D)
  • 15 min per axis (5 axis) = 75 minutes for skilled person to build and mount axis.
  • (Remote controlled?) Tractor for Tunesien project 2019 supported by Hamburg Helmut Schmidt University.

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Scalability in 200 KW scale (?) by 1 KW Step

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Michel from Hamburg, cos(h), OSE-Germany

  • Support by Hamburg Open Online University
  • cos(h) collective open source hardware
  • With Martin Jäger and OSE-Germany they built SolarBox
  • How to reproduce
  • Lead acid Batteries at MMPP
  • BMS Batteries Li-Iron-Phosphate (Li-Fe-PO4)
  • Join Many Boxes in a Network for scalability
  • Open Energy Monitor - Open Source Software
  • Made Electromagnetic compatibility (EMC)
  • Education. To learn to create PCB for students.
  • Martin Jäger found of Libre Solar Project
  • Michel found cos(h)
  • Try to rebuild.
  • Build a system.
  • Simplify?
  • Marcin suggest put more into software.
  • There a is simpler version in development
  • Telegram for communication https://telegram.org/
  • Build a nano-grid

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Notes

Spencer:

  • Induction furnace research and design
  • Scalable vs efficiency
  • 1 kW to prove then modular design
  • Design: textbooks, subject matter experts - contact universities or companies, industry standards

Eric

  • KiCAD + FreeCAD
  • Models of individual parts (next step)
  • 3D-Model of CNC Circuit mill
  • Options for mounting arduinos
  • How to start project

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Ruslan

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Michel:

  • Nano-grid for scaling the only way to scale
  • Can you print
  • Buy in large numbers (partners)
  • One for Marcin
  • Redesign for circuit mill

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Marcin:

  • Open source business

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Spencer from Chicago

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Notes

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Ruslan

  • Prusa extruder
  • Where to upload large files (Git, OSE Germany)
  • How to deal with complex FreeCAD assemblies

https://wiki.opensourceecology.org/wiki/File_Simplification

  • D3D printer v18.06.12 - 30 cm (11.8 in) cubic printer area
  • Which documentation to follow, latest on facebook
  • Assembly procedure
  • Naming: use official machine name, for version use periods
  • Split documentation if it gets too big, use template spreadsheet to keep track of link locations

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Questions

Questions and Answers

  • How to calculate components? (need to find it out)
  • PCBs in SolabrBox use Throughholes (VIAs https://en.wikipedia.org/wiki/Via_(electronics). ) That is why we cannot use the circuit mill to make the PCB directly.
  • Flamingo for wiring? Some professionals do not do it, Marcin objects: we make instructions for non-professionals.

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Michel - Collective Open Source Hardware

Hamburg Open Online University -

https://collectiveopensourcehardware.github.io/

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OER with universities -> assembly guideline

https://collectiveopensourcehardware.github.io/education/guide_intro/

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https://github.com/LibreSolar/ThingSet

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LibreSolar (Martin’s project) -

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open energy monitor -> Open Source HW -> Measurements Components and gateway + SW server, visualization

https://openenergymonitor.org/

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PCB replication - disclaimer

OER with universities

By now PCB assembly

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Maximize microcontroller functionality (software), simplify hardware

Attempting CE

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Direct communication on https://telegram.org/ -

Developing -> github

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https://collaborating.tuhh.de/cos_h/organization/university_coop/issues

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Starting New Projects

https://www.youtube.com/watch?v=yXPpK2lu32k

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Continuing D3D

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Dev Narrative

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Ruslan

Started 3D Printer

https://wiki.opensourceecology.org/wiki/D3D_v18.06.12

Questions:

  • How strict are the naming rules? “D3D” or “3D Printer” “v18.06.12” or “v180612”?
  • Flat or hierarchical documentation.
  • Limit 2MB(?), cannot upload FreeCAD files. Use Git repo

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Hint: Do not draw cables in FreeCAD files

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Power Cube - Abe Log

http://opensourceecology.org/wiki/File:PC17.11_auxiliary.fcstd

http://opensourceecology.org/wiki/Power_Cube_v17.11

  • Multiple changes to PCv17.11 need to be manually added to PCv18.01 including engine dimension corrections requiring a larger frame.
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  • 16HP Engine CAD on GitHub
  • Engine Re-assembly ~99% done
  • Next steps update CAD modules
  • More Plumbing
  • Implementation on LT
  • Parts Layout for CNC cutting
  • 3D Image Processing

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Eric

https://wiki.opensourceecology.org/wiki/KiCAD_to_FreeCAD

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Found KiCAD to FreeCAD workbench

  • Import .pcb for 3D model (can select layers to include)

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Working on getting parts library installed

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Getting parts included on board

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How to mount arduino+RAMPS on D3D frame

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Spencer

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