ROV Submersible Robot Gripper

thingiverse

I was delighted to find majolar's robotic gripper and use it as a jumping off place. After building the original claw, I discovered that the jaws remain parallel to each other as they open and close, and the max opening is not very wide. The animated gif shows more of the action I am looking for. The V1 files have some interchangeability with the Orig files, but a complete change in the gripper's action occurs when using them. This new one is designed to work with an Amarine 1100 GPH Bilge pump found here: https://www.ebay.com/p/12v-1100gph-Boat-Marine-Plumbing-Electric-Pump-Unique-for-Any-Blige-amarine-made/5012102393?iid=201952409317&chn=ps. The trouble with V1 is that the 3mm thick mounts were too flimsy to support the claws effectively, so enter V2. One benefit of V2 is combining five of majolar's parts into one and losing a bunch of hardware. The V2 files provide 9mm mounts for all key parts connected with M3 HEX head 15mm SS Screws. Only the V2 claws need to be printed with supports. I've added a reducer so the nut won't spin in the base, and I'll upload a re-sized version of the base as well. Here is a video of the gripper in action: https://youtu.be/HoAcsjW6pkU. I'm incorporating this into an ROV loosely based on this design: www.youtube.com/watch?v=TfJ0Y3oZTzQ, and I'll post a link to the parts once it's more together... I'm using a 1/8" to 1/8" Shaft Coupler with Set Screws from Robot Shop: https://www.robotshop.com/en/actobotics-set-screw-shaft-coupler-18-18.html, some 3mm Stainless Steel Threaded Rod from Amazon: https://www.amazon.com/gp/product/B078H58XVL/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1, and a 3mm SS Nut to fit. The nut gets sealed inside the base so it's captive for the push/pull action of the drive as the threaded rod is turned by the pump. See the whole ROV here: https://www.thingiverse.com/thing:3486760