Mamiya M645 Left Hand Grip

thingiverse

A work in progress! I'd suggest printing V3, however I've only printed V2 and it works quite well. Currently designing and printing a simple left-handed grip for my Mamiya M645J. This should be compatible with all cameras in the M645 line-up, but I'm not certain. Hopefully this makes the camera slightly more ergonomic to use. The attachment point is through the tripod screw, and I'm using a screw from an old film camera leather case. Reason being it's got a large surface to grip the plastic once tightened down. You'll probably have to modify the fastener location depending on your available hardware. You may be able to get away with a short bolt that's the correct size of the camera, and a large washer to fit inside the counter-bore (it's got a diameter of 0.98 inches which is ~25mm). Let me know if you have any questions! I'll be updating it as I tweak it/make it fit properly. Update #1: V2 should be properly sized now. Increased distance between camera body and grip, as well as increased finger divot size and decreased bottom pin diameter. The addition of a stiffening rib should also help the strength of the part. Update #2: V3 has been released, which integrates a ~10 degree rotation to the grip. This should provide a more comfortable handhold, as it also emulates the production grip design. The stiffening rib has also been increased in size to try and minimize the deflection of the grip when in use.