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S2016 Syllabus in html

by Jonathan Gutow last modified Jun 28, 2017 09:02 AM

html version of old syllabus

Chemistry 330: Scientific Glassblowing Syllabus Spring 2016

Course Overview: In this course you will be introduced to the techniques of scientific glassblowing useful for repairing and modifying laboratory glassware. After taking this course you will not be a skilled glassblower. However, you should be capable of replacing broken parts and fixing cracks in existing glassware. Think of this course as a survival guide for the glassware using laboratory scientist. The skills you will learn in this course are also a good place to start if you are interested in artistic glasswork. Most classes will consist of some technique demonstrations and time for you to practice the techniques. Your grade will be determined by the skills you become proficient at and the quality of the final glass project you produce.

Important Course Rules:

  • No student may be in the glass shop unless the instructor (Dr. Gutow) is present.

  • You must follow safe procedures at all times. Failure to do so will result in your removal from the course.

  • Production of any objects that could be interpreted as drug paraphernalia is prohibited.

  • At the end of the class you may take your artistic glass objects with you. However, any scientific glass products must stay in the glass shop. If you produce something for a research project, your advisor must make arrangements with the instructor for transfer of the glassware to their laboratory.

Instructor: Dr. Gutow Office: HS-412 Phone: 424 – 1324

E-mail: gutow@uwosh.edu Web: http://www.uwosh.edu/facstaff/gutow

Office Hours: Open shop (HS 001) M & Th 1:50 – 3:10; Regular (HS 412) T 10:20 – 11:20, WF 12 – 1

or by appointment.

Textbook: the website http://www.ilpi.com/glassblowing/idex.html

Optional printed texts for long term reference:

Prerequisites: Two years (4 semesters) of chemistry and consent of instructor.

 

Class Times: W 1:50 – 5:10 (HS 001)

 

Homework: Limited reading assignments primarily as listed in the tentative schedule later in this syllabus. Optional glassblowing practice during specified office hours (open shop times).

Tentative Schedule:

Typical class day: 2 – 3 technique demonstrations each followed by about 15 minutes of practice, remainder of class time for practice of techniques of your choice and general glass play. You must be actively working with glass for the whole period.

The best way to become proficient is to spend time handling the glass to learn how it behaves. Try making little (1 – 2 cm across) do-dads. Things that look like pictures in coloring books for young children are good targets.

Week: Class Day

Topics

Reading at http://www.ilpi.com/glassblowing/index.html

1: 2/3

Cutting glass, torch safety, torch safety certification, fire polishing, rod play, stress and annealing

From General Information: About this site; What is scientific glassblowing?; Stress and Strain. From the Basic Tutorials: 1 – 6, 8 – 9

2: 2/10

Crack repair, hole repair

 

3: 2/17

test tube ends, tube bending, rod re-enforcing, baubles

Basic Tutorials: 10 and 13.

4: 2/24

Butt seals, T-seal, lathe demo, lathe rotation

Basic Tutorials: 11 – 12

5: 3/2

Tapered butt seals, lathe rotation continued

Basic Tutorials: 11

6: 3/9

Seal-offs (ambient and evacuated), Glass saw, lapping, lathe rotation continued

Basic Tutorials: 15

7: 3/16

Ring seals, lathe rotation, practice

Basic Tutorials: 16

 

Spring Break

 

8: 3/30

Practice, skills certification

 

9: 4/6

Practice, skills certification, begin projects if certified in all skills.

 

10: 4/13

Practice, skills certification, projects

 

11: 4/20

Practice, skills certification, projects, baubles

 

12: 4/27

Practice, skills certification, projects, baubles

 

13: 5/4

Projects, baubles

 

14: 5/11

Projects, baubles

 

 

Grading: Your grade will be calculated on a four point scale. It will be based 66% on your demonstrated proficiency at 12 skills as described below. The remaining 34% of the grade will be determined by your final project, which will be graded as specified below.

More than one missed lab or routinely not making use of the full scheduled lab period will result in a grade of F. Lab time missed because of illness can be made up with consent of the instructor during the scheduled open lab (office hour) times.

The rough grading cutoffs will be: A/A- > 3.5, B+/B/B- > 2.5, C+/C/C- > 1.5, D+/D > 0.8, F < 0.8. The instructor will not adjust the cutoffs upwards, but reserves the right to lower them.

 

Skills (66% of grade) – listed roughly in the order easiest to hardest. Each of these skills will be graded based on your performance on a certification test which you can take as soon after spring break as you feel ready. You must use materials supplied by the instructor for certification in each of these skills.

Level (pts)

%

Advanced (4)

Intermediate/Proficient (3)

Novice (0)

Torch Safety

8

Exhibits skills with specialty torches.

Safely handles lit torch and follows proper lighting and shutoff procedures

Is hazard to others or self.

Crack Repair

10

Unable to tell crack location

Crack sealed but location visible

Unable to seal crack

Hole Repair

10

Unable to tell hole location

Hole sealed but location visible

Unable to seal hole

90 deg Bend

10

Wall thickness even and internal diameter consistent

Wall thickness uneven

Not 90 degrees or internal diameter grossly uneven

Hand Annealing

(will be checked on T-seal)

10

Polarimeter shows minimal stress

Joint can be handled

Joint cracks with handling

Seal-Off(10 mm)

8

Neither too much nor too little glass.

Sealed

Not sealed

Test Tube End

8

Even thickness

Sealed, but too thick or thin

Not sealed

Butt Seal

10

Nearly invisible

Sealed but uneven

Not sealed

Tapered Seal

8

Evenly tapered joint

Sealed but uneven

Not sealed

T - Seal

10

Even symmetric joint

Sealed but uneven

Not sealed

Rod Re-enforcing

8

Firm smooth attachments and smoothly bent or straight rod

Firm but not completely melded attachments. Rod may not be smoothly bent.

Attachments incompletely melded and weak

Ring Seal (8mm inner, 16 mm outer)

0

Smooth even thickness seal

Sealed

Not sealed

 

Project (34% of grade) – Plan your certifications so that you have a minimum of two weeks to work on this. You cannot start without an intermediate (proficient) rating on all skills except for the ring seal. The project must be done using tubing of at least 10 mm diameter. There must be at least one fire-polished open end that can be used to fill the project with water or pressurize it. The instructor will provide at least one option for people who are not comfortable designing the project on their own.

Points

%

4

3

2

1

0

Test Tube End

12

≥ 1 perfect

1 thick

1 thin

1 airtight

missing

Butt Seal

12

≥ 1 perfect

uneven

Obvious bubbles

1 airtight

missing

Tapered Seal

12

≥ 1 perfect

uneven

Obvious bubbles

1 airtight

missing

T - Seal

12

≥ 1 perfect

uneven

Obvious bubbles

1 airtight

missing

90 deg Bend

10

≥ 2 perfect

≥ 2 flawed

1 perfect

1 flawed

missing

Rod Re-enforcing

10

≥ 1 perfect

Bends not even or straight sections not straight

Firm but not completely melded attachments

Weak attachments

missing

Seal-Off

10

1 perfect

Excessive glass

Too fragile

Not sealed

missing

Open end

12

Undistorted, fire-polished

Distorted fire-polished

Undistorted no polish

Distorted or chipped no polish

missing

Ring Seal

10

1 airtight

 

1 attempted

 

missing

 

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by Jonathan Gutow last modified Jun 28, 2017 09:02 AM