Announcing an online class – coffee roasting!

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ATTENTION COFFEE DRINKERS!
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We are hosting a “Getting started roasting coffee at home” class on Zoom next week! This class will cover all the basics of getting started roasting the best tasting coffee you will ever drink at home. Home roasted coffee is a great homemade gift to give over the holidays!

The real benefit to this class is that you will be able to get ALL your questions answered right on the spot! Come learn about roasting coffee from a maker perspective!

Register for the class and please share with your friends on all social networks!   Thanks!!

How to 3D Print: A Beginner’s Guide (class!)

Learn all about 3D printing at Workshop 88!

We are thrilled to announce a class we are hosting at Workshop 88 (June 12th) and at Fox.Build (June 26th)! Here’s the details:

When – Wednesday, June 12, 2019 from 6:30 PM to 8:00 PM

Where – Workshop 88

What – This class is a collaboration between Workshop 88 and Fox.Build and will be taught by Gail Jo Kelly. She has been 3D printing since 2014. The class will be directed towards people that are new to 3D printing. She will explain how 3D printing works, within the context of the 3D printers at the makerspace. There will be printers on hand for demonstration. Information will cover the process of obtaining a file for print, preparing the file in the compatible format for the printer, using the related software interfaces, along with how to load the filament (materials) and features of the 3D printer. To view 3D printable items, take a look at https://www.thingiverse.com for examples.

Please RSVP for this class at our Meetup Page!

CAD CAM tutorial

CAD CAM tutorial
by D.  Scott Williamson

This tutorial will show you how to use Computer Aided Design and Computer Aided Manufacturing or CAD CAM tools to create and preview a Gcode file of the Workshop 88 logo that can be run in a 3 axis CNC Mill.

Background

There are 5 main types of machine operations

  1. Engrave (follow path): The tool tip will follow the 3D path provided.
  2. Profile: The tool edge will follow either the inside or outside contour of a path down to the specified depth.
  3. Pocket: The tool will remove all the material within a contour down to the specified depth.
  4. Drill: A drill routine will be executed at each point location.  Drill routines come in 2 flavors:
    1. “Peck” used with drill bits, drills to successively deeper depths liftig the bit out of the work regularly to clear chips from the flutes.
    2. “Spiral” used with endmills that are a smaller diameter than the finished hole.
  5. 3D relief: The tool tip will remove material above a 3D surface usually specified in a 3D model or a 2D height map image.  There are two main modes:
    1. “Waterline” similar to inverted pocket operations where bulk material is efficiently removed outside the 3D model to a number of stepped depths resembling waterline in a topological map.  Typically used in a first pass with a large roughing bit to remove the bulk of the material.
    2. “Raster” moves the tip of the bit smoothly over the model in a raster pattern.

Gcode is a “numerically controlled programming language” which is why a Gcode file extension is typically .nc.  It is a human and machine readable text file.  You will rarely if ever need to look at or edit the Gcode.

Overview

This tutorial will demonstrate Engrave, Profile, and Pocket operations, which are the most popular.

There are 4 steps to this tutorial:

  1. Create a .svg file containing paths needed for machine operations
  2. Create machine operations
  3. Export Gcode
  4. Simulate, visualize and validate

Continue reading

New meeting schedule

Workshop88 is happy to announce a new meeting schedule staring February 2012. Meetings will be at 7 pm Thursday evenings every week, and the open hack night will be Monday nights. Class schedules and the meetup schedule will be updated to reflect these changes. Board meetings will be scheduled once a month.

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We look forward to seeing you at our new weekly meetings.

Arduino 201 Cancelled, Arduino 101 Instead!

We’re calling off our Arduino 201 class due to low enrollment, and having an Arduino 101 class instead.

If the snowpocalypse deprived you of your Arduino 101 class a couple weeks ago, come on in Tuesday night for a make-up.

Arduino 101 will also be taught the first week of March, and Arduino 201 will be taught near the end of March.

Time: Tuesday, Feb 15 6:30pm – 8:30pm