How Often Should You Change a Maker Cutting Blade?
Don't schedule blade changes on time alone — read cut quality, reject rate and spindle load together.
Why a time-based interval is not enough
A fixed interval is the easiest rule to run, but it ignores three variables: incoming blend density, shift load and blade-holder condition. The same blade can last twice as long on one machine as on another.
Three signals worth reading
- Cut quality — More burr and a fuzzy end face mean the edge has dulled.
- Reject rate — Rejects attributed to poor cutting are the most direct signal.
- Spindle current — A dull edge raises cutting resistance, which shows up as a measurable rise in spindle current.
One practical approach
Run your current interval for a month while logging all three signals. Then move the interval to the point about 10% before the reject rate starts to climb, and re-check once a quarter.
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