For my next project I've decided to move onto a basic robotic arm. I have a general idea of what I want to do with it and how it will look, but I am having a hard time implementing it.
The Base of the arm which will support the structure and house the batteries, arduino, and breadboard as well as two servos. One servo which will allow the arm to rotate 360 degrees and the one on top which will be placed sideways to control the first part of the arm.
I have cut 1x11 inch pieces of acrylic which I want to mount on the servo horns, I'm not sure whether I should hot glue them or screw them on. I'm not even sure what size screw to use if I were to go about it that way as I have always simply hot glued stuff (simple, fast and easy) but I would like to get more professional and work towards using screws, nuts, and bolts.
The final product will have just two pieces of acrylic, another servo where my thumb is and one at the end which will hook to a slot I have built for a webcam allowing the webcam to rotate left to right.
I didn't want to make the arm any longer because I'm sure how much the servos can handle.
I hope this provides a general idea of what I am trying to do. I am looking for some general tips as to working with the frame and just advice in general in what I can improve to make the project more fulfilling and complete. I can add more pictures if you would like to see anything else as well.
I thought about that for a while, however I wasn't too sure on how to actually measure that. I ended up building a prototype with microservos and they held up just fine with the weight, however since this one has a bit more reach to it I did go with standard size servos just in case.
I'd be inclined to cover the whole X of the horn with the strip, attached with screws to all 4 arms of the X, and drill an extra hole in the arm to allow access to the horn's centre screw.
Yes, I was planning on doing that as well. The hard part for though is that as I mentioned before I don't have a lot of experience with the hardware aspect in terms of making the body and understanding that. The electrical and software aspects I am fairly confident in my ability to work with, but anything to do with the body/frame I am very inexperienced with.
Can you tell me, what are the most common sizes of stand-offs, screws, nuts and bolts that are used with arduino projects? I'm sure that can get my started in the right direction. It seems that the majority of kits use m3 screws and nuts, but what about the stand-offs? I am going to go to my local hardware store today and try to find some of these pieces.
