Contact

Corrections are welcome, particularly on measurements, terminology and anything to do with how a part fails.

Corrections and questions

Write to post@cnkendo-da.com. If a correction concerns a specific entry, quoting the entry number from the top of the page — Entry 1.1, and so on — makes it quicker to place.

Makers and repairers

If you make, repair or inspect equipment and something here is wrong or out of date, that is the most useful mail we get. Photographs of a failure are more useful than a description of it.

What we cannot help with

We do not sell equipment, recommend suppliers, value second-hand sets, or advise on grading, membership or instruction.