You also need to make sure the material is perfectly flat. Most people use either magnets or something like these pins to hold down the material.
Cardboard is hard to get good alignment on…it tends to bow up in places.
You also need to make sure the material is perfectly flat. Most people use either magnets or something like these pins to hold down the material.
Cardboard is hard to get good alignment on…it tends to bow up in places.