HomeDavid Chrapkiewicz's portal to fine violins, violas, bows and maintenance.
BackgroundDavid Chrapkiewicz's history and accomplishments building award winning violins and violas.
ServicesYou can commission David to build the "perfect" violin or viola for you, buy a custom bow or have your musical instrument repaired or professional tuned and modified for the ultimate sound you seek.
Contact/VisitDavid Chrapkiewicz's shop is in Maryland. Talk to David about your violin and viola needs.
InnovationsCheck out the design of David's Shorty O'Five or ask him how he can meet your special needs.
Care of InstrumentsCheck out David's twelve basics of string instrument maintenance.
Instrument PhotosThese great pictures only hint at the quality of David's craftsmanship.
ArticlesDavid's excellence has been recognized in printed articles and video.
Audio ClipsListen to a few of David's violins played by luminaries like Amy Beth Horman and David Davidson.
Links
David Ludwik Chrapkiewicz

The following outline on the basics of string instrument maintenance reflects the topics addressed during a shop visit:
- I. Bridge
- Selection
- Placement
- Correct angle with strings
- Fit of feet
- String height
- Maintaining correct angle
- Tone and playability
- II. Strings
- Cleaning
- Pinching to correct bridge
- III. Cleaning Instrument
- Wiping
- Polishes
- IV. Post material
- Usual
- Best
- V. Peg Dope
- Mortite
- Usual
- VI. Chin Rests
- Change sound
- Must not be too loose or tight
- Must be custom fit with chalk
- VII. Shoulder Pads
- Kill sound
- Best is none
- Next best is foam or sponge
- Clamping types mute or change sound
- VIII. Openings
- Common
- Loss of sound
- IX. Buzzes
- “Ain’t bees!”
- Many possible sources – some you can fix: loose adjusters, loose collars or pins, ball ends of strings
- X. Bow Mating
- Importance of finding a bow that helps your instrument sound its best
- Many bows kill sound on great instruments
- XI. Importance of a good case
- such as a suspension case for maintaining adjustment against bangs
- XII. Temperature!
- Trunks/cars
- Heat and cold