ROV Submersible Robot Gripper

thingiverse

See the whole ROV here: https://www.thingiverse.com/thing:3486760 I was delighted to find majolar's robotic gripper as a jumping off place. After building the original claw (files prefaced with Orig_) I discovered that the jaws remain parallel to each other as they open and close, and the max opening is not very wide. If you look at the animated gif you can see more of the action I am looking for. The V1_ files have some interchangeability with the Orig files, with a complete change in the action of the gripper. The 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 just too flimsy to support the claws in an effective way, so enter V2. One benefit though is the 4 claw or 3 claw base parts combine five of majolar's parts into 1, and lose a bunch of hardware. The V2_ files provide 9mm mounts for all the key parts which are 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. 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 will post a link to the parts for that once it is a little more together... Get rid of the space in that link - I didn't want the ROV video to appear here since it doesn't have a gripper... 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 and 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 is 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