If you want to send your orders together to reduce shipping fee, following are the steps:
1. Order one design including shipping fee
2. From the second order, could choose "Freight Collect" , which shipment fee is 0, and note that: This order will be sent together with the previous order #.
3. Reviewed and approved, we will calculate the total weight.
Within 400g, it's OK.
Exceeding 400g, it will plus shipping fee and remark in the order.
The NextPCB Team