Troubleshooting and Tips
An easy way to do multiple keyrings at the same time to save time and money is to print multiple designs of the keyring on an A4 or A3 paper. Then simply stick the metal inserts to this one piece using heat resistant tape. Once fixed you can press the whole paper in one go by pressing the inserts face down in your heat press.
Please be aware that putting items too close to the edge on your press might lead to less than perfect results as most heat presses have issues with pressure on the edges or with differences in the temperature of the heating plate in these areas.