I designed a wide tripod plate for my tripod. It’s 75x75mm as I plan to use it for my mini projector. It uses 1 ¼ 20 thread bolt ¾” long. Printed in PETG with 25% infill for strength and flex. The small notch on the inside of the shoe indicates the direction to insert it. 
 

My tripod is a Smith-Victor P900 tripod. 
 

If you print this please post a phot of your make and leave a rating/review. Thanks