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Regional Clinic - Sioux City, IA
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When: 03/07/2020
8:00 AM
Where: Western Iowa Tech Community College
4647 Stone Ave
Sioux City, Iowa  51106
United States
Contact: Mark Schmedinghoff
712.274.8733 x 1306

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Clinics & Clinicians

Making Casings, Pistons and Threads Right
John Huth

The total space between a piston and its casing is typically between 0.001" and 0.0015". It is truly amazing that valve action can be lightning fast given these tolerances.

A quality repair means everything is working properly, both mechanically and acoustically. Because the valves are the heart of the instrument, we must take care to ensure these criteria are driving decisions:
  • Each casing and piston must be a dimensionally consistent cylinder, round and true
  • The space between the piston and casing must be preserved
  • The bearing surfaces must be clean and stain-free
  • The bearing surfaces must be free from friction-causing imperfections or aberrations
  • The guides must track freely
  • The springs must be tensioned appropriately and consistently

This clinic will deep-dive into evaluating and repairing casings, pistons, and threads, using tools (purchased and homemade), and techniques that foster excellent results, increased efficiency, and instrument longevity.

We will provide a handout containing the checklists, process maps, tool drawings, and instructions used at Red Wing. Please come with your questions or examples of problems you commonly have.
John Huth has taught in Red Wing's Band Instrument Repair (BIR) program for thirty years. He is actively involved in NAPBIRT as a Master Clinician for and three times has been recognized for excellence in presenting. He has written over thirty articles on repair for NAPBIRT's TechniCom journal and other music journals/magazines.

John has created tools currently used by technicians around the world. On YouTube, you will find a number of repair-related videos produced by John and his BIR colleagues. Outreach to directors and musicians include maintenance/emergency repair presentations at the MidWest Band and Orchestra Clinic, Minnesota Music Educators Association and the Symposium of the International Horn Society. John was apprentice-trained prior to joining the faculty at MSC Southeast in 1987.

The Overlooked Flute
Joe Butkevicius

Have you ever tried your best on a flute repair only to discover that there's still something wrong that you just can't figure out? This clinic will concentrate on various overlooked aspects of flute repair that often get missed. From the "hardware" such as padding, keywork, and headjoints, to the "software" such as key design, geometry, material/mechanical tolerances, and acoustical problems, Joe will offer simple solutions of how to find and correct both routine flute repair issues and those bizarre problems that defy identification for correction.

Joe Butkevicius is the QC Supervisor / Altus Flute Specialist at KHS America in Mt. Juliet TN. For many years he has hosted clinics and served as a clinician for all types of NAPBIRT events including Annual Conferences, Regional Clinics and NAPBIRT University. Over the years he's consulted for many manufacturers and been sought out by top flutists worldwide for service. Joe served as NAPBIRT's Vice-President and is the Music Director in his church.


Saturday:   March 7, 2020

  8:00 - Welcome - Refreshments:  Courtesy of Ray's Midbell Music
  8:30 - Session 1: Making Casings, Pistons and Threads Right - Part 1 - John Huth
10:00 - Break
10:30 - Session 2: Making Casings, Pistons and Threads Right - Part 2 - John Huth
12:00 - Lunch:  Courtesy of Ray's Midbell Music
  1:00 - Session 3: The Overlooked Flute - Part 1 - Joe Butkevicius
  2:30 - Break
  3:00 - Session 4: The Overlooked Flute - Part 2 - Joe Butkevicius
  4:30 - Adjourn


Please read and understand the:   Cancellation Policy

Early Bird Rate:  $80.00 (On or before Saturday, February 15, 2020)
Regular Rate:     $95.00 (Starting Sunday, February 16, 2020)

  • All registrations are to be completed electronically using this website.
       (We accept Visa, MasterCard, Discover, American Express)
  • You must be at least 18 years of age.
  • You do not have to be a member of NAPBIRT to register. However, you will need to create an account with us in order to process your registration.
  • If you are a current member, make sure you are logged into the system. Otherwise, you will end up re-typing a lot of information that would automatically be inserted into the registration form.
  • If you are a previous member or you have attended a NAPBIRT clinic in the past, your name should already be in our database. Click Here to request your login information.

By registering for this event, I give my permission for NAPBIRT, Inc. to use, without limitation or obligations, photographs, film footage, or tape recordings which may include my image or voice for the purpose of promoting or interpreting NAPBIRT programs and services.

I waive all claims for damage and/or loss to my person or property which may be caused by an act, or failure to act of NAPBIRT, it's officers, directors, agents, or employees and the hosts and clinicians. I understand that there are inherent dangers in working with tools and repairing instruments and I assume the risk of all dangerous conditions in and about such clinics and waive any and all specific notice of the existence of such conditions.

Clinic Etiquette:
Hand held audio recorders and still cameras are permitted providing that you do not disrupt the session and you have the permission of the clinician. Video cameras and other similar equipment are not permitted without advance written authorization from NAPBIRT.

Cellular phones and other electronic gadgets must be turned to OFF or SILENT during all scheduled events including tours, meals, and clinics.

Our goal is the free exchange of ideas and techniques. Please remember that the clinicians are your colleagues: feel free to ask questions and participate during clinics. Questions asked during clinics are often very valuable: be respectful of those asking questions, whether they are new technicians or seasoned veterans. We would also ask that you remember that there are different ways to achieve a desired end, and that not all technicians always agree on the same techniques or tools. If you find yourself in a position in which you disagree with the clinician, we would ask that you be respectful to the clinician and your fellow audience members and not be disruptive in the clinic.

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