Contact
Found a wrong number, a broken page, or a calculator that should exist? Email is the whole contact system.
What's useful to include
- For an error: which calculator, what you entered, what it showed, and what you expected. A screenshot helps.
- For a suggestion: what you're trying to work out and where you currently do it. If the formula is standard, a link to it saves time.
- For a spool tare, hotend flow limit or power figure you've measured: the brand, model and number. Measured values replace the approximate presets.
Replies usually come within a few days. There's no newsletter, no support ticket system and no phone.