This is my starting point for making battery adapters for a Makita 18V drill driver. Uploaded in STEP format to enable adaptation to suit the needs of the user. I hope STEP files for these will become more widely available. It is my first draft and it works. I printed in PETG with 0.15mm layer height for layer strength, with supports on the bottom for the fillets I added. I have left the ends square in the uploaded version for easier modification.
The author marked this model as their own original creation.