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Labs & Lectures 2011

Schedule »

10Hr Machine Shop Course and 257 Labs Info

Week	Lecture Notes	Lab Notes	Other Material
1 – Digital Inputs	Lecture 1  Course Intro Electronics Parts (diodes, BJTs, MOSFETS) Digital Inputs	Lab #1 (Digital Inputs)	Machines & Safety (May 11) Solid Works Intro (May 13) Waterjet Intro (May 13)
2 – Analog Circuits and Filters	Lecture 2  Analog Ciruits Filter Design	Lab #2 (Analog Circuits and FIlters)	Slides from 257 labs May18 Link to 257 course materials
3 – Analog Inputs + Digital Outputs	Lecture 3  Comments on Lab 2 Analog-to-Digital Conversion Design Reviews Team Organization and Idea Generation Mech Design – Part 1 (Robin Coope)	Lab #3 (Analog Inputs, Digital Outputs)	Design Reviews – Complete Details
4 – Pulse-width modulation and high-current outputs	Lecture 4  Digital to Analog PWM High-current and motor outputs Intro to Motor Specifications Mech Design – “How to Make Things” – Part 2 (Robin Coope)	Lab #4 (PWM and H-bridges)	Design Notes from Dan Gelbart:  Gelbart – Presentation Gelbart Course Notes Part 1 Gelbart Course Notes Part 2 Sample Gear Calculations: guide to calculations online Lewis formula calculator
5 – PID Control Loops	Lecture 5 – Part1   Intro to Control Feedback loops and stability PID compensation Lecture5- Part2 planning electronics design assorted electronics components planning software Lecture 5 – Part 3 Noise in electronics circuits Shielding	Lab #5 (PID control)	Examples for Electronics Design  Adiabatmobile – electronics schematics Party Van – electronics overview (winner, 2010) Solidworks Force and Motion Examples Video showing use of blocks in sketches Video showing use of forces in sketches Download this Solidworks file to try yourself And check out this crude motion study made in Solid Works showing a hypothetical robot winching itself up, using a rack.
6 – Design Review Discussion	Lecture 6  solidworks walk-through (2d design) incoming servo motors (to arrive ~June 25th) solenoids rotary encoders		Specs for available materials in 253 are here.
7 – Design and Fabrication Time!	Lecture 7  •Design Review Document •Safety Reminder •Design Review Comments •Incoming electronics components •Incoming mechanical components •Other fabrication comments		Info on materials, gears, offsets for waterjet and lasercutter from lecture given on June 21 is here. The Solid Works model of the example rack is here. The Solid Works model of the example planetary gear is here.
8 – Comments During Fabrication	Lecture 8   Comments on Design Docs Elec – component prices TINAH demo/test program more than 4 servos TINAH digital outputs through header pins		Video on how to use epoxy Video on how to knurl a shaft Some more info on tabs in omax, mechanical cable and more from the June 28 lecture is here.
9 – New Mech items + student survey			Student Mid-Course Survey(please complete by 2011 July 6th) Info on shafts, pins, servos and how to use a nibbler from  July 05 lecture is here.

 

 

 

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10hr Machine Shop Course

 

A few things to read before getting to the machine shop:

1. Measuring Tools   – digital calipers,  reading the scale on vernier calipers, as well as using  micrometers
2. Engineering Drawings – learning to read and recognize well and poorly-dimensioned drawings.  (notes from Ernie Blanco at MIT)
3. Lecture on Machine Shop Safety
4. Intro lecture on Design in Solidworks and OMAX waterjet cutting

 

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1.  10Hr Schedule Info:

• The course is run on two afternoons two afternoons, from 12 – 5pm.   These are typically Mon/Wed, Wed/Fri, or Fri/Mon, depending on your group’s schedule.
• You will only do the course during one of these sessions.  The schedule is tight, so please let us know if there are any conflicts with the proposed times.
• There is some advantage to having at least some people do it earlier rather than later so that there is some hands-on team knowledge about machining during the design phase, so I will try to spread teams out over all the sessions.