Sara Bajor Log

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HintLightbulb.png Hint: Please log hours for last week

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Current Progress: Daily Standup Log | Development_Team_Log#Active_Developer_Logs

Documentation Guidelines: Documentation_Standards:_Abbreviated : Wiki Cheatsheet : Mediawiki Formatting Help : Daily_Log_of_Tasks

Team Logs: Development_Team_Log : Marcin_Log : Sara Bajor Log : Dixon Log : Alex Au Log

Please leave timestamped messages for me here:

Ex: Oct 13 - I edited your thing based on Dixon's and mine. - Alex

Oct 14 - It's very satisfying when people use the stuff I do. - Dixon

-Takacs- Feb 2 - I really need to get this PVC frame proven! metal frames are costly. Mar 10 - Getting D3D OH up - looking for the manual. had it but lost track

Also, how are you guys QCing a new printers / new prototypes print efficacy? I see you have printer logs as a nice start. I think I'll copy that and add do a 2" calibration cubed at the center and all corners (or what every nice cali print you can think of? maybe this and the standard circle?)

Total hours Oct-Nov = 285

Fri Dec 7, 2018

  1. Generate GCODE for burn in test
  2. Use GCODE to get data on various print speeds
  • 100
  • 150
  • 200
  • 250
  • 300
  • 350
  • 400
  • 450
  • 500

Wed Dec 5, 2018

D3D Certification - Build Procedure.

Fri Nov 30, 2018


Thurs Nov 29, 2018

Working on Kit Certification

Wed Nov 28, 2018

Completed a Kit Build


  1. Axes - 11 sec = 44 minutes
  2. Extruder - 5 sec = 20 minutes
  3. Heat Bed - 4 sec = 16 minutes
  4. Control Panel - 6 sec = 24 minutes
  5. Axes mounting - 11 sec = 44 min. At end of axis mounting, should test the smoothness of motion.
  6. Extruder Mounting - 2 sec = 8 min.
  7. Bed Fixing in Position - 3 sec = 12 min.
  8. Panel Mounting - 1 sec = 4 min. Are all zip ties tied down?
  9. Wiring + Print - 20 sec = 80 min

Total: 252 = 4 hrs 12 min. With 50 min for frame - 5 hrs 2 min total.

Mon Nov 26, 2018

Wed Nov 21, 2018

Kit Build

Tues Nov 20, 2018



  • Printing spool holder joints at 110%
  • Meet up with Alex to hand off parts

Mon Nov 19, 2018

Thurs Nov 15, 2018

Wed Nov 14, 2018

Tues Nov 13, 2018

  • Printed motor mount piece
  • Finished drilling holes for next set of frame pieces

Metal fab shops near me:

Mon Nov 12, 2018

Fri Nov 9, 2018

Kit Build Photo Log

3D Printer build efficiency recommendations

  • z-side bottom frame holes 1/4 inch higher - so axis can easily be fitted when printer is sitting flat on table
  • build agnostic axes, attach to frame, then finish - so you only do it once
  • belt tighten after attach to frame - so you only do it once

Wednes Nov 7, 2018

edit edit edit

Tues Nov 6, 2018

  • Assembled first kit

Mon Nov 5, 2018

Wed Oct 31, 2018

  • Uploaded gcode for Angle Grinder Chop Saw parts to 3D Printer GCode - for both 1.75 and 2.85mm PLA filament
  • Purchased [2] 14"x14"x6" shipping boxes from UPS - for use in Certification. Each box = $6.40
  • Wire stripper tool - for cutting 3mm threaded rods failed. Just bends the rod slightly when fully closed
  • Trip planning and logistics with Alex for Friday certification

edit edit

Tues Oct 30, 2018

  • Replaced magnets for holding filament spool with 3D Printed part
  • Downloadable stl here: Thingiverse 8mm Dowel Joint
  • Generated Gcode for 1.75 and 2.85 filament here: Google Drive Gcode
  • Sara #1 3D Printer resolved an issue of stuttering motor by running at 200%

Thurs Oct 25, 2018

  • Need to get gcode for end stops and print these
  • Eventzilla follow up - Nile wants referral link for tracking

Wednes Oct 24, 2018

  • Problems with heated bed... resolved by slightly altering the way the control wire was plugged into Arduino... ???
  • Reciprocating saw on wish list
  • Confirmed Rocklin workshop with Nile

Fri Oct 19, 2018

TODO Today

  • Google Analytics - Block IPs

Thurs Oct 18, 2018

Started the Printer Log

TODO Today

Wed Oct 17, 2018

Tues Oct 16, 2018

TODO Today:

  • google ad conversion tracking
  • print parts throughout the day
  • add Maker Fair event to website
  • add Nov 10 SF event to website + FB Post
  • SF event calendars for Nov 10 event
  • Facebook post for Maker Fair
  • question list for Alex visiting CCL
    • Please confirm availability of Kitchen
    • What is in kitchen? Check for Fridge, Microwave, Stove, Oven -- other notable appliances?
    • Whiteboard / Chalk Board / Large wall to create SCRUM Board?

Mon Oct 15, 2018

CA Press Release page

TODO Today:

  • modify press release
  • send out press release
  • google ad conversion tracking
  • print parts throughout the day
  • Call UPS for arrival ETA on shipment
  • Add workshop interest form to microfactory site

Sun Oct 14, 2018

[Conversation with Erik Olson]

Sat Oct 13, 2018

[Q&A with college aged women who started a successful nonprofit teaching design and 3d printing to students]

[Teacher training in Idaho]

Thurs Oct 11, 2018

Wed Oct 10, 2018

Saturday, Oct 6, 2018

  • Google Grant $2 CPC cap lifted if using "Maximize Conversion" setting, requires setting up a conversion
  • Reassembled Sara Printer #2 - in transit, belts got loose, heated bed broke off (JB Weld), one wire broke/disconnected, end stops fell off (super glue), extruder fan plastic bent.

[Apply to present, 1 Million Cups (Sacramento)]

Friday Oct 5, 2018

Google Ad Grant Guide

  • "All the ads in your account must link to the nonprofit URL that was approved in your application process."

File:Digital Promise Credentials.pdf

Sunday Sept 30, 2018

[Software Doc ] [Addition to Extruder troubleshooting, handling clogs and maintenance]. Printer profile - File:Sara1.ini

Sara1 Marlin: OSE Marlin v18.09.2

Friday Sept 28, 2018

[How Stepper Motors Work]

[PHP Bulletin Board] [Live Example]

Tues Sep 25, 2018


Mon Sep 24, 2018

OSE Outreach/Communications Tracking

Sun Sep 23, 2018

FullBuild Event Listing Drafts

2 potential AirBNB venues; 2 potential retreat venues.

- AirBNB Fremont

- AirBNB Yosemite

- Mercy Center (Burlingame, south of SF) FAQs

- The Sequoia Retreat Center (Ben Lomond, south of San Jose)

Wednes Sep 19, 2018

1 Open Source 3D Printer to Seed 7 Industrial Machines

Tues Sep 18, 2018

3D Printer Questions & Buying Advice (Reddit)

Mon Sep 17, 2018

200 kilowatts per activity is the point at which "industry" scale is reached. I.e; 100 kilowatt tractor would be "homestead" scale, 200 kilowatt is industrial scale -- with industrial efficiency. Solar panels are less than $0.5/watt. So 100 kilowatt will cost $50,000 one time investment.

Using 30 acres of land to achieve all that modern technology offers Basically, 4 major types of materials: Biomass, metals, ceramics, plastic Modern tech refined from raw versions of these Electricity is very flexible in facilitating the refining of these materials You can smelt iron ore with electricity Any process that requires heat, can be powered with electricity Energy is the ability to convert any material into a more refined material Most modern compounds are aluminum or steel based Thus the induction furnace + metal roller - to convert scrap into reusable metals Make tubing, rods, or wire Industry evolved from wood -> steel (metals) -> information Metal: electrons move but the nucleus is stable

Sun Sep 16, 2018

3D Printed Prosthetics

Event Venue Request Draft Example

The Shop (San Francisco) - empty calendar for Oct.

Kapor Center (Oakland) - M-F Event Rental, $500 nonprofit price for full day (8am-9pm)

Other Bay Area venues for rent (spreadsheet)

Oakland event rental Impact Hub

(Sacramento) warehouse-y event rental

Tues Sep 11, 2018

Marketing meeting agenda: - First public build - Second public build - Dixon's event call

Sales calls: SPIN selling Situation : Problem : Implication : Need-Pay Off SPIN Selling by Neil Rackham (Amazon) by Neil Rackham (PDF)

(Well suited for B2B sales) For success, the person you are talking to should be talking 80% of the time. Establish your expertise along with a sense of trust/mutual understanding. So that objections can be brought up and addressed (or even better: address the objections before they come up, if you have this level of insight). More likely than not, what you are selling is not their #1 priority. So you have to do some work to convince them. Ask questions; like, what does it mean for their organization if you address their need? Get them thinking about it. (i.e; What do you think about making your own tools rather than purchasing tools that already exist?) Treat them as the expert on what they need, then communicate how you can address their needs. If our service does not actually address their need, we can pivot our service to match it or pick up the relationship somewhere down the line.

Ferdi: the quality of educations is the greatest security for 3D printing longevity. Even the "best", most expensive printer will fail if not operated properly. Train the trainers. Ferdi: noticed through personal experience that 3D printers are region-specific. So maybe focus more on the knowledge around 3D printers rather than the printers themselves. "We teach our students how to build machines."

"Safari" school presentations: $300/half hour - $500/hour + reduced cost for multiple presentations on same day.

Mon Sep 10, 2018

Best promo style is video and Facebook live. Recommendation to generate outline of collaboration agreement, benefits to each party.

3d printer immersion flyer

Thurs Sep 6, 2018

Installed Linux: GIMP, Arduino, Cura-Lulzbot

Mon Sep 3, 2018

X-Axis Assembly

Y-Right Axis Assembly

Y-Left Axis Assembly

3D Printer v18.09 Frame Build

Initial BOM on Paper for D3D v18.09

Thu Aug 2, 2018

Slide deck - [3] view only, copied to [4]

July 19, 2018

Developer Test Work Log



Installing Linux USB: .5 hours Learning FreeCAD: 15 hours Documentation: 1 hour

Learning FreeCAD was definitely the most difficult task. The 15 hours learning FreeCAD enabled me to complete the XYZ cube in about 42 minutes. It took me a while to figure out how to align the pipes perpendicular and parallel to each other within the xyz plane. I watched the 2 tutorial videos provided but had to frequently reference the Old_FreeCAD_Tests to fully understand how to accomplish the task. I did not use any other outside tutorials.

I believe I built the XYZ cube in a "brute force" fashion and that a more efficient and elegant solution was possible. At some point while adding the fastener to my cube, some of the pipes came out of position, so I give myself 85% for this attempt.