Each package of Formlabs powder includes an ID card. This card contains powder credits which must be loaded onto the printer to authorize and track the amount of powder that is available. Credit is subtracted from the available balance based on the amount of powder that is sintered. Powder that is unsintered can be recaptured by the Fuse Sift for future use and is not deducted from the credit balance.

Powder credit is used to identify which Formlabs powder you are using, as well as the amount of new powder that is available for printing. Before starting a print, load powder credit onto the printer.

1. Locate the card holder:
   1. On the Fuse 1, open the IR sensor door on top of the printer. The card holder is on the back wall of the top cavity.
   2. On the Fuse 1+ 30 W, the card holder is on the outside of the machine to the right of the touchscreen.
2. Insert an unused powder card into the card holder.
3. On the touchscreen, choose the value you wish to transfer to the powder card. The Transfer complete screen appears.
4. After loading the powder credit onto the printer, tap Done on the printer’s touchscreen. Remove the card from the card holder.
5. Close the IR sensor door.

When not loading or unloading powder credit onto the printer, check the printer’s available powder credit on the Settings screen.

To check available powder credit:

1. On the touchscreen, tap the wrench icon. The Settings screen appears.
2. The available powder credits are displayed next to the Powder Credit menu.
3. Tap Home to close the Settings screen.

The printer reminds you of low powder credit over time, indicating that you may only have enough powder on hand for several more prints. Upon starting a print, the printer warns you if your credit is low.

• If the printer does not have sufficient powder credit for the current print job, the printer notifies you and does not start the print job. Load additional powder credit onto the printer and restart the print job.
• After a print completes, the printer notifies you if your powder credit total is low. Check the Powder Credit screen to confirm there is enough powder credit registered to the printer to complete your upcoming prints. If not, you will be unable to start the next print until sufficient powder credits are registered to the printer. Register additional powder credits or order additional powder.

In rare cases, powder credits may need to be transferred from one printer to another. If the powder credits are not transferred, they are lost when activating Open Material Mode. Empty powder cards can be used for transfers.

To load powder credit:

1. Locate the card holder.
• On the Fuse 1, open the IR sensor door on top of the printer.The card holder is on the back wall of the top cavity.
• On the Fuse 1+ 30W, the card holder is on the outside of the machine to the right of the touchscreen.
2. Insert a powder card into the card holder.
• If the card is empty, the Card empty screen appears.
• If the card contains credits, they are transferred to the printer, and The Transfer complete screen appears.
3. Tap Settings > Powder credit > Transfer Credit to Card. The Transfer to Card screen appears on the printer's touchscreen.
4. Choose the full amount of powder available on the printer.
5. Tap Transfer to register the credit from the printer onto the card. The dialog box updates to confirm the new powder credit on the card.
6. Tap Done on the printer’s touchscreen. Remove the card from the card holder.
7. Close the IR sensor door.