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Testing out version 2 of our system, with two robots on independent carriages co-operating to carry out assembly tasks. This was manually programmed to gut-check the approach (learning: we're redesigning our gripper to prevent arc blow... Jim Belosic (SendCutSend) will be getting more business from us soon). The next...

21,265 Aufrufe • vor 5 Monaten •via X (Twitter)

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Milestone! We (robotic arms for gadgets assembly) finished the first commercial order, which brought the first revenue. Here are some learnings from this: The customer was a smart toy manufacturer. The task was to add a heatsink to Raspberry Pi. We received parts from them and returned the assembled modules back. Currently, it's done by teleoperation. Later it will be done by a remote employee via the Internet. Then it will be automated action by action, reducing the operator's time on this and making the task profitable. ps. If you have an assembly task that we can do for you asynchronically - leave a comment below. Learning 1. It's possible! This task which is usually done by the human arm with 5 fingers can be done with a two-finger gripper with the addition of a couple of simple tooling. The task was not simplified. We peeled off thin films from stickers, unpacked paper boxes, moved PCB boards full of components, etc. And no unsolvable problems have been encountered yet. Challenges: 1) The paper box shifted during the opening Solved with the plastic walls that you can lean against 2) Heat pad, stuck to the gripper instead of heat sync. Can be solved by gripper with a pump, but this time solved with the patience of the operator 3) The film on the pad is very thin. Turned out that sub-millimeter arm precision is enough to peel it off with just a regular gripper. 4) The working area has not enough space. You'll only know this by doing real tasks in bulk. This could be solved by an extra pair of long arms, but in this case, solved with the patience of the operator. I think that in the end, we will have 5-10 types of universal tooling and 5-10 types of grippers to solve almost all the problems in such assembly tasks. Learning 2. It's slow. It took 5 times more time, than doing it with human hands. But the good news is there's a lot of room for improvement. We now have specific “time for task” metrics, which we will decrease with iterations. The main reasons for slowness: 1) To rotate the gripper to a steep angle you are forced to control one robot arm with two hands instead of using both arms. We can fix this by just making more room for rotations. 2) Grabbing PCB board with two arms is hard. A slight difference in rotation can break the board, and it's hard to control these angles visually. To solve this, the best way is to use force feedback so you can feel the pressure applied to the item. 3) Accuracy and steadiness is still can be improved We will try a metal version and double the motors to do this. 4) It is physically difficult for the human hands to move with such precision To solve this, we will add a pad for the hands like in surgical robots Learning 3. It's a good business model The "Factory in the cloud" is a good business model for this stage. You send us parts and we send back assembled modules. Currently, it's more convenient than sending a robot to your place, as we can iterate/fix the robot quickly and utilize it 100% of the time. When we polish the set-up over time - we can send robots to your place. So if we can assemble something for you in the USA with Chinese prices by using modern automation - leave a comment below.

Igor Kulakov

37,266 Aufrufe • vor 1 Jahr

This will get a lot faster - shortening the hold time, deleting the “return to home position”, speeding up the robots… but it’s an exciting early glimpse of what we’re building. This is a sub-scale but otherwise accurate piece of a ship hull made with 3/8” steel plate and extruded angle. At full-scale the plate will be up to 40’ long. Our software generates the sequence of operations and calculates optimal trajectories based on the 3D model of our design. We won’t need to retool for different plate thickness, stiffener spacing, or even to add transverse members, brackets, etc. Our next version of this setup will include more extensive robot calibration and computer vision to allow us to precisely pick up arbitrarily-shaped structural members and place them accurately. Our software will also extend all the way through the process, picking plate & profiles from storage, running it through material prep operations, and even generating nesting layouts for the cutting table, removing scrap and directing the cut parts towards the correct assembly area to be picked and placed by robots. And there will be opportunities to deploy no-bullshit, useful AI agents to monitor the process, reflow production if there’s an issue somewhere on the line, generate work instructions for humans where needed and generally reduce the amount of human labor needed for oversight. If we succeed at all of this it will be hands down the most advanced shipbuilding process in the world. Early days still, but we won’t stop until we make it happen.

Dustin Walper

32,497 Aufrufe • vor 7 Monaten