OSE Dev Team Meeting Agenda

Wed Oct 10, 2018

2 PM CST USA time

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1. Agenda - Progress Reports
1. Marcin - update on immersion results and current priorities
2. Jon T - 12” PVC electrical work. Automation work. Absent [At Day Job]
3. Dixon -
4. Sara - Wordpress management; Analytics + Google Ads (CA Workshops)
5. Alex - library demo presentation, microfactory website copy, onboarding notes, 3d printer workshop
6. Abe -
7. Meeting Maintainer/Jen
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 mont
5. Assign Roles and Introduce the meeting

Saturday

Workshop,

St. Joseph, MO, USA

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Takacslog -

D3D Ohio 9/17

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• Finished cutting and Assy. 1” dia pipe PVC frame 12”
• On drilling holes, using drill press and just mounting a short idler to the side with a vicegrip as a guide was not accurate enough.
• Produced and printed a 1” pipe drill guide; which works great!
• Next is the good parts, when I have an opening... mounting electronics and getting it running!
• 10/9 update So far, I’ve got to rebuild the extruder and discover / wire the stepper harnesses.
• https://wiki.opensourceecology.org/wiki/Takacs_Ideas_Page for automation work I’m doing for an online store and manufacturing execution system. Think automated printing inspection and boxing of orders, scrapping of failed prints in fillastruder ect.

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Build photos link: https://photos.app.goo.gl/soNvqm7NHGeFC8RH6

New 1” PVC hole drilling guide:

https://wiki.opensourceecology.org/wiki/File:1Inch_PVC_D3D_HoleJig2013.stl

(see in photos)

Disable retraction

Esteps per mm

Acceleration on retract - adjust and inspect

Power Cube - Abe Log

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

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

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• Can hoses be plumbed via curved wires in Draft WB? Probably requires some python in a macro to make it easy
• FreeCAD tutorial ideas
• Power Cube on CAD on Github - test updates with feature branching
• considering ways of file reorganization for gitlab migration

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Notes

Next meeting 12:30 Central.

300 pp instructionals for 3D printer

Sample workshop St. Joseph

Next week workshop/Filament maker?

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Jon:�12” PVC frame/model out/working great�New gig (jig?)

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Marcin: �Disable retraction, everything works/Jon offered solutions

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Miles:�$70 components/power supply

500 Watts

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Jesse:�Working on gate driver for larger power element

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Abe:

Files can go on GitLab instead of GitHub�De-duplicating is a feature of cloud servers

How to keep the FreeCAD tree from preventing editing?

On .16 FreeCAD now�

Jon:

Request a print project�

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D3D_Ohio extruder build (V1807)

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https://wiki.opensourceecology.org/wiki/D3D_Extruder_v1807

Buck-Boost Converter

• A DC to DC converter module capable of�changing voltage by a factor of five
• 1.5kW capacity, maximums:
• Voltage = 60V
• Current = 30A
• ~$26 for components shown here,�plus cost of microcontroller and�miscellaneous parts