Maker Meeting March 16, 2021

Check out the March 16, 2021 Workshop 88 Maker Meeting here:

Things We’ve Made

3D printed for everyday use. A place for everything and everything in it’s place. (Organizers)

Vase Mode – extra thin walls

Modular Tool Caddy

Replacement Parts – Repairs around the house by Peter

Thingiverse Links

Power Strip Project (Slide Deck)

An approach to problem solving

Designing 3D printed parts to help supplement a situation.


Workshop 88 is a makerspace in Glen Ellyn Illinois. We are more than a workshop, we are a growing community of creative talented people who aspire to learn and share knowledge, experiences, and projects.

Join us! To become a member join at Workshop88 or you can help us continue to share our projects and activities by supporting us via Patreon.

Never miss a tip or project! Follow our blog at www.Workshop88.com, subscribe to Workshop88’s YouTube channel, like us on Facebook, follow us Twitter and join or support our maker community by contributing to Workshop88 on Patreon!

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Have a question? email us at info@Workshop88.com

Maker Meeting March 9, 2021

Check out the March 9, 2021 Workshop 88 Maker Meeting here:

HackADay

Basic (Code) in 10 lines or less contest

Scott’s project overview of his contribution to contest.

Mandelbrot

Must see to enjoy. It’s mesmerizing.

TinkerCad Follow Up

  • Logos
  • Shapes Collection

Around the House Repairs

Bob showed what he 3d Printed to replace a broken part around the house. Next week, bring examples of things you made (instead of bought) and used around the house.

Misc Discussions

Acetone Smoothing of 3D Prints

Ferrofluid (https://en.wikipedia.org/wiki/Ferrofluid)

MandelBulb (https://en.wikipedia.org/wiki/Mandelbulb) Ryan Bliss (Digital Blasphemy)

3D Printer Hardware


Workshop 88 is a makerspace in Glen Ellyn Illinois. We are more than a workshop, we are a growing community of creative talented people who aspire to learn and share knowledge, experiences, and projects.

Join us! To become a member join at Workshop88 or you can help us continue to share our projects and activities by supporting us via Patreon.

Never miss a tip or project! Follow our blog at www.Workshop88.com, subscribe to Workshop88’s YouTube channel, like us on Facebook, follow us Twitter and join or support our maker community by contributing to Workshop88 on Patreon!

To find out about upcoming events follow Workshop88 on Meetup.
Have a question? email us at info@Workshop88.com

Maker Meeting March 2, 2021

What Every Maker Needs to Know About Rechargeable Lithium-Ion Batteries

Check out the March 2, 2021 Workshop 88 Maker Meeting here:

Introduction

If your next project involves portable electronics, this is what you need to know about batteries. Here are slides from Bob Van Valzah’s presentation on rechargeable lithium-ion batteries.

Lithium-Ion Battery (PDF Presentation Slides) from video above

Rechargeable Focus

Portable projects running on single-use batteries don’t face some of the complexities you run into with rechargeable batteries. Lithium-ion batteries can burn your project to a cinder if they’re mistreated.

Cautionary Tales

Basics

You’ll need to know the vast range of sizes available for lithium-ion batteries. Manufacturers use units like mAh milliamp hour and Watt hour to describe their batteries.

Comparison with Other Rechargeable Batteries

Lithium-ion batteries outperform all other battery technologies in power density and energy density. Moreover, they can be designed to cover a huge range of power and energy densities.

Charging, Discharging, and Temperature

Voltage, current, capacity, and temperature are all related as a battery charges and discharges. Curves are presented to show the relationships.

What’s Inside a Cell?

Lithium-ion batteries don’t behave like other batteries and are downright counterintuitive in many ways. Understanding just a bit about them at the level of molecular physics and chemistry helps explain some of the mysteries.

Battery Packs

When your project needs more voltage, current, or capacity than a single cell can provide, you need a battery pack of many cells. You can make your own pack or buy them pre-made. Or 3d print adapters for commercial battery packs:

The Ubiquitous 18650

By far the most common lithium-ion cell in battery packs is the “18650.” Every maker should know why they have that name and be aware of the pitfalls of buying them.

Safety

It’s easy to make mistakes in designing and building your project that end up “mistreating” a lithium-ion battery. In particular, there are many ways to go wrong building serial strings of batteries in the quest for more voltage. Protection circuitry or “brains” watch for and avoid the most common forms of electrical mistreatment. In extreme environments like the surface of Mars at night, batteries must be kept warm.

Battery Voltage Monitoring

If your project has a user interface, the user might want to know how much charge is left in the battery. We show typical circuitry for an MCU to read the battery voltage, along with the charge and discharge curves.

MCU Project Integration

You could charge your batteries by removing them from the project, but that’s often impractical. Modest-sized projects can be charged via USB and built-in charging circuitry. It only takes a two chips if you want to do this yourself.

Battery Holder MCUs

A nice alternative to DIY integration for many MCU-based projects is to use a “battery holder” MCU. Several varieties are available on AliExpress. In addition to holding the battery, these boards provide USB charging, a USB serial interface for programming, and a power switch.

Not Quite Lithium-Ion

Lithium-ion batteries are well suited to personal electronics where small size, light weight, and long runtimes are prized. But other chemistries are better suited to solar, marine, and other applications.

Mistakes and Summary

I learned a lot from the projects I’ve done with lithium-ion batteries. You can easily avoid some of the mistakes I made. Slides summarize the key knowledge points about lithium-ion batteries and advice for makers.

Chargers and Interconnects

Jim Williams describes more details of lithium-ion battery charging and how he built a generic LiPo charger. It uses a current meter from a cheap “Charger Doctor” and a TP4056 chip. Jim replaced the fixed current programming resistor with a pot for setting the optimal charging current for the battery at hand. He used HF Alumiweld to fabricate a custom heatsink and managed to fit the whole project into a palm-sized case.


Workshop 88 is a makerspace in Glen Ellyn Illinois. We are more than a workshop, we are a growing community of creative talented people who aspire to learn and share knowledge, experiences, and projects.

Join us! To become a member join at Workshop88 or you can help us continue to share our projects and activities by supporting us via Patreon.

Never miss a tip or project! Follow our blog at www.Workshop88.com, subscribe to Workshop88’s YouTube channel, like us on Facebook, follow us Twitter and join or support our maker community by contributing to Workshop88 on Patreon!

To find out about upcoming events follow Workshop88 on Meetup.
Have a question? email us at info@Workshop88.com

Maker Meeting February 23, 2021

3D PRINTING – Slicers

Slicer – the software that generates the G-Code that is sent to the 3D printer.

Check out the February 23, 2021 Workshop 88 Maker Meeting here:

Introduction

The 3D Printing process involves

  1. obtaining an .stl file (custom design or downloaded)
  2. preparing that file for the specific 3D printer to be used (slicer software)
    1. Tonight’s focus is G-Code
  3. 3D printing

Slicer Clarification

There are many old web links that still work. But that doesn’t mean it’s the most current version of software. The Prusa Printer software is based on the open source Slic3r. But the latest edition (as of this writing) of Prusa Slicer Software is available on the Prusa3D.com website and it is called PrusaSlicer 2.3.

Slic3r.org – opensource, last release (2018-05-10)

Versions from Prusa (still free and OpenSource): Slic3r Prusa Edition, PrusaSlicer 2.0

Automated Bed Level Hardware Add-On

Demo of BLTouch including what is required for installation on an Ender 3 printer.

Moving from Slic3rPE to PrusaSlicer 2.3.0

  • have a working example
  • compare G-Codes
  • import what you can

Moving from MakerBot Desktop to PrusaSlicer 2.3.0

  • custom settings
  • build on success
  • know what you need and your machine can handle

General Discussion/Mentions

Bed Weld product for adhering 3D printed objects to bed while printing.

Additional Links


Workshop 88 is a makerspace in Glen Ellyn Illinois. We are more than a workshop, we are a growing community of creative talented people who aspire to learn and share knowledge, experiences, and projects.

Join us! To become a member join at Workshop88 or you can help us continue to share our projects and activities by supporting us via Patreon.

Never miss a tip or project! Follow our blog at www.Workshop88.com, subscribe to Workshop88’s YouTube channel, like us on Facebook, follow us Twitter and join or support our maker community by contributing to Workshop88 on Patreon!

To find out about upcoming events follow Workshop88 on Meetup.
Have a question? email us at info@Workshop88.com

Maker Meeting February 16, 2021

Open-Source CAM / CNC Software

Check out the February 16, 2021 Workshop 88 Maker Meeting here:

Special Guest

This week we had a great conversation with our special guest, Brad Collette, one of the core developers on FreeCAD – focusing on Path Workbench.

Sliptonic

General Discussion/Mentions

Additional Links


Workshop 88 is a makerspace in Glen Ellyn Illinois. We are more than a workshop, we are a growing community of creative talented people who aspire to learn and share knowledge, experiences, and projects.

Join us! To become a member join at Workshop88 or you can help us continue to share our projects and activities by supporting us via Patreon.

Never miss a tip or project! Follow our blog at www.Workshop88.com, subscribe to Workshop88’s YouTube channel, like us on Facebook, follow us Twitter and join or support our maker community by contributing to Workshop88 on Patreon!

To find out about upcoming events follow Workshop88 on Meetup.
Have a question? email us at info@Workshop88.com

Maker Meeting February 9, 2021

Check out the February 9, 2021 Workshop 88 Maker Meeting here:

CAD Software – Designing 3D Printable Objects

Introduction Overview

TinkerCAD

  • Web based software that includes 3 levels of design including circuit design and code blocks.

FreeCAD

  • A perfect middle level interface that allows for easy changes and keeping a history of objects created with an interface to manage the variables.
  • Chamfer capabilities with ease.

OpenSCAD

  • Pure scripting/programming interface with supplemental graphics and supporting library of modules to work from.

Software Links

Additional Links Mentioned


Workshop 88 is a makerspace in Glen Ellyn Illinois. We are more than a workshop, we are a growing community of creative talented people who aspire to learn and share knowledge, experiences, and projects.

Join us! To become a member join at Workshop88 or you can help us continue to share our projects and activities by supporting us via Patreon.

Never miss a tip or project! Follow our blog at www.Workshop88.com, subscribe to Workshop88’s YouTube channel, like us on Facebook, follow us Twitter and join or support our maker community by contributing to Workshop88 on Patreon!

To find out about upcoming events follow Workshop88 on Meetup.
Have a question? email us at info@Workshop88.com

Maker Meeting February 2, 2021

Check out the February 2, 2021 Workshop 88 Maker Meeting here:

GPS Map Data Reduction – Phase 3

  • MACE shared the current step of the GPS Data Map reduction and the resulting differences based on methods utilized. RDP

3D Printing Projects

  • 3D Printing Projects were shared and some methodologies explained.

Next Step Up for CAD Design Software ?

  • The question as to what software platform is the best next step after TinkerCad was proposed.

Animal Bioacoustics

  •  cross-disciplinary science that combines biology and acoustics
  • AudioMoth – Andrew shared the device that can sit outside and record bird and other animal sounds. Tune in later at an upcoming meeting to hear actual animal sounds recorded.

Workshop 88 is a makerspace in Glen Ellyn Illinois. We are more than a workshop, we are a growing community of creative talented people who aspire to learn and share knowledge, experiences, and projects.

Join us! To become a member join at Workshop88 or you can help us continue to share our projects and activities by supporting us via Patreon.

Never miss a tip or project! Follow our blog at www.Workshop88.com, subscribe to Workshop88’s YouTube channel, like us on Facebook, follow us Twitter and join or support our maker community by contributing to Workshop88 on Patreon!

To find out about upcoming events follow Workshop88 on Meetup.
Have a question? email us at info@Workshop88.com

Maker Meeting January 26, 2021

Check out the January 26, 2021 Workshop 88 Maker Meeting here: https://www.youtube.com/watch?v=D6PLhZxu954

  • Gail shared their overview of the video game Stardew Valley and couldn’t help but compare it to Animal Crossing New Horizon.

Workshop 88 is a makerspace in Glen Ellyn Illinois. We are more than a workshop, we are a growing community of creative talented people who aspire to learn and share knowledge, experiences, and projects.

Join us! To become a member join at Workshop88 or you can help us continue to share our projects and activities by supporting us via Patreon.

Never miss a tip or project! Follow our blog at www.Workshop88.com, subscribe to Workshop88’s YouTube channel, like us on Facebook, follow us Twitter and join or support our maker community by contributing to Workshop88 on Patreon!

To find out about upcoming events follow Workshop88 on Meetup.
Have a question? email us at info@Workshop88.com

Maker Meeting January 19, 2021

Check out the January 19, 2021 Workshop 88 Maker Meeting here:

Excel Tips and Tricks

Designing a Case for Anemometer

Part 2 of GPS Data on Google Earth

  • https://youtu.be/j170OVP-4oc?t=2440
  • Mace provided an update of the Google Earth Map data point project.
  • Questions addressed: How much data do you really need? What produces the best looking chart? How do you determine which of the data can be excluded? Every 5th element, every 100th?

Workshop 88 is a makerspace in Glen Ellyn Illinois. We are more than a workshop, we are a growing community of creative talented people who aspire to learn and share knowledge, experiences, and projects.

Join us! To become a member join at Workshop88 or you can help us continue to share our projects and activities by supporting us via Patreon.

Never miss a tip or project! Follow our blog at www.Workshop88.com, subscribe to Workshop88’s YouTube channel, like us on Facebook, follow us Twitter and join or support our maker community by contributing to Workshop88 on Patreon!

To find out about upcoming events follow Workshop88 on Meetup.
Have a question? email us at info@Workshop88.com

Maker Meeting January 12, 2021

Check out the January 12, 2021 Workshop 88 Maker Meeting here: https://www.youtube.com/watch?v=uwsqs3ZTS8k

Mapping out GPS Data

Bending Methods

Making Puzzles

General Discussions

  • Video timestamp 1:08:22 https://youtu.be/uwsqs3ZTS8k?t=4102
  • Staples of our home workshop
  • Drone Pilot
  • Methods of etching glass with laser cutter
  • Taking apart an LED lightbulb
  • 3D Printed Tally system case (more details coming later)

Workshop 88 is a makerspace in Glen Ellyn Illinois. We are more than a workshop, we are a growing community of creative talented people who aspire to learn and share knowledge, experiences, and projects.

Join us! To become a member join at Workshop88 or you can help us continue to share our projects and activities by supporting us via Patreon.

Never miss a tip or project! Follow our blog at www.Workshop88.com, subscribe to Workshop88’s YouTube channel, like us on Facebook, follow us Twitter and join or support our maker community by contributing to Workshop88 on Patreon!

To find out about upcoming events follow Workshop88 on Meetup.
Have a question? email us at info@Workshop88.com