554: Block Signature Signature
The Pen Addict
00:00
Is There a Way to Refill and Seal a Cartridge?
Stefan asks, is there a way to refill refill and seal a cartridge? I don't want to just be buying new sealed cartridges because of the cost. There's an interesting market opportunity for someone who can do this. If you're trying to avoid that, I don't know a great answer for this.
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