BOM

The total cost to build an OpenCAL printer is approximately $1,638 (as of 6/2026).

Click the following link to view the Bill of Materials (BOM):

OpenCAL BOM

NOTE:

• The first tab is for the total inventory. This is what you will realistically spend.

• The second tab is for the used inventory. This is the actual cost of the printer.

• The third tab is the analysis, allowing you to see the breakdowns of the printer by category.

SOURCING TIPS:

• Many of these items can be found cheaper elsewhere, sourced locally, or reused from parts you already have in your workshop. The listed prices are a guide, not a requirement, so shop around before buying.

• For the Amazon links specifically: these sellers frequently go out of stock or have long shipping times. Many other sellers on Amazon offer the exact same item, so if a link looks unavailable or unreasonably priced, look around for an alternative. If you find a better link, feel free to share it in the Discord so others can benefit.