The best PCB making method should be the toner transfer, this is a material you must have.
Print it with laser machine, you hot laminator machine to transfer the toner to your copper board, be aware to prepare your copper board well with sanding, the last step is etching.
The advantage of using this kind of methods:
- A4 Size
- Very efficiency
- Low cost
- High precision
- Easy to use, less steps compare to corrosion
- 100PCS, this is around 0.6KG, high weight.