this post was submitted on 28 Jul 2024
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I got a set of cheapies from FoxBC. We'll see how long they last. Next time I'll probably spring for Freud's.
But is it still using flap knife clamping? That's incredibly dangerous.
What is a flap knife clamp?
Basically when in old planners the actual knives and the part of the spindle above it is only secured by screws pushing the spindle and knife together. These are VERY prone to material fatigue of the screws, even if you replace the screws and which then send the knives and the fold towards you due to the centrifugal forces.
They have been banned from commercial use since the 90ies in a lot of countries,but are still very present,sadly.
In modern spindles the knives are held tighter by centrifugal forces due to a different construction method and it should not happen normally.