CruskWoarn

CruskWoarn puts two small workshop calculators side by side, so the maths is done before you pick up a saw or a fid.

How it works Swipe between the two benches and tap one to open it. Every number updates as you change an input, and any run can be saved to your bench log.

Chime Tuner takes a tube material, outside diameter and wall thickness, then asks which musical scale and lowest note you want. It returns the exact cut length for every tube in the set, the frequency each will sound, and where to drill the hanging hole so the tube rings instead of deadening.

Splice Planner takes a rope diameter, splice type and tuck count. It works out how much tail to unlay, the rope the splice consumes, the finished eye size, and a numbered tuck schedule with taper percentages per round.

What is inside

• Five tube materials with real density and stiffness values
• Seven musical scales, pentatonic through perfect fifths
• Four splice types with per-round tuck instructions
• Millimetres or inches across both benches
• A saved bench log you can filter, reopen and share as text
• Reference notes explaining the reasoning behind each result