- Slide the inner part of the device so that the correct position of the letter or number is selected.
- Insert the punch stamp into the opening of the device.
- With a strong blow on the punch stamp, imprint the letter/number onto the seed disc.
The device keeps the punch stamp flush and in the intended position, resulting in a uniform, clear impression.
Pay attention to the size of your punch stamps or simply purchase the appropriate ones from our shop.
The device is 100% open source and is based on the groundwork of nifri and blockmit. All information at https://www.thingiverse.com/thing:6345255.