Custom 3D Printed Hand Grip for Olympus PEN-F PENF Very Comfortable

Description

I am an inventor and designer with 70 US patents. I am always looking for ways to improve things. I own an Olympus Pen-F Digital and was looking for a grip that was strong, comfortable, able to add a hand-strap to and light in weight (37g). I went through over 30 iterations and prototypes before finalizing this design.
Here are a few reviews from past purchasers!
"Worlds better than the OEM ECG-4 grip! MUCH Better handling and lighter giving the camera the perfect balance" -Vic (Vic sent me some photos of his Pen-F with the grip and I added them to the photos!)
Nice grip, as described, packed well and shipped promptly. A+++++
AMAZING precision and quality, fitted like a glove to my new Pen F
A clever design and well made. Perfectly functional. Love it!
Fantastic Camera Grip!
Benefits and Features:
New larger and ergonomic 3D printed camera grip.
Very comfortable.
The grip is held on with a 1/4-20 screw (supplied) that attaches to the Pen-F.
The grip has a stainless steel 1/4-20 female thread to attach things like tripod mounting plates. The female thread is not designed to take dynamic loads but static loads from stationary mounting on a tripod. For heavy counter-lever loads (i.e. long lenses) use the
appropriate
tripod lens collars made for balancing the camera/lens arrangement.
Please make sure the grip is secure in place before using the camera. (3D printing can leave some bumps, gaps and surfaces that are not completely smooth, but these do not affect the actual purpose/use of the grip)
Grip was tested with nine (9) pounds, or 4,082g (FYI - the Pen-F weighs 387g and the 300mm PRO weighs 1270g), of weight on the bottom platform. No cracks or failures occurred. See the photo. Not bad for something that only weighs 37g!
3D printed with PLA-MAX (PLA-TOUGH) or PETG material for strength. This is similar to ABS and much stronger than normal PLA. (Approximately 3 hours of prep, printing and finish time per grip!)
Easy access to battery and memory card.
Designed to accept a hand-strap (not included)
Grip does not impede with any functions of the camera body.
THIS KIT DOES NOT INCLUDE an Olympus Pen-F Camera body, Lens or hand-strap.
Only the grip and the mounting hardware are included.
As is normal for FDM 3D-printing; there may be gaps, protrusions and imperfections in the surfaces of the print (see photos), but none of these imperfections will impede the use. I try to sand off any
anomalies
that may interfere with the grip. If I miss some, a file will easily smooth the area.
Always use a camera strap to prevent accidental dropping of you camera!