The Doll Forum

As I'm now 90% through making my first 64:1 downgearing Archimedes pulley system and testing and debugging it, I now have more precise measurements for the Archimedes pulley system's total size. I updated the size of it in my main CAD model for the robot and it was a good 18% increase compared to my...

pulley routing design.jpg Here is a updated drawing design for the 64:1 downgearing pulley system for the index finger actuation of the distal 2 joints of the finger. On the bottom right is a zoomed in view on the lower set of pulleys and their routing. The bottom most 3 pulleys in the zoomed in po...

I haven't punched hair but I read a sewing needle eye can be cut in half and that forms a u shaped punch. You would bind that to a stick for easier grip. Just need wire cutters to cut the needle eye in half.

My concern on implementing "emotions" in my AI is that I don't want to promote the idea that robots can ACTUALLY have emotions because I don't believe that is possible nor ever will be. They don't have a spirit or soul and never will nor could they. They are not eternal beings like humans....

I just bought EMEET USB Speakerphone M0 4 AI Mics Speakerphone for Conference Calls 360° Voice Pickup Conference Speakerphone for Computer Plug and Plays Computer Speaker with Microphone for 4 People --- it was around $33 and includes a speaker too. I'll position it centrally in the skull and it has...

As to the AI plans and progress so far, here's a little primer on what I decided on in a simple, surface level way. So first I realized meaning can be derived by taking parts of speech in a sentence or phrase and thereby establishing some context and connection between words which is what gives the ...

plain bearings components.jpeg cutting bearings with dremel.jpg dremel cutting table.jpeg Here are some plain bearings parts I made with my Wen rotary tool (aka dremel) with diamond disc attachment and some files. They are made by carefully cutting stainless steel tubing (purchased on Amazon) into ...

3d model of motor controller design.jpg Brushless Motor Controller Schematic and Notes Above are the schematic and notes in both 2d and 3d for my custom brushless dc motor controller design. I made a 3d version to help me visualize the layout better. It is to scale with all parts modeled. I am able...

double stacked pulleys side view.jpeg double stacked pulleys front view.jpeg Above are double stacked pulleys front and side views. One disc on either outside part and one disc in the center that splits the two bearings up. I have to add a black string across the bottom to prevent the yellow rope f...

Here are some prototype pulleys in progress of being made. I have 7 of 9 pulleys done so far for my prototype Archimedes compact pulley system design 64:1 downgearing system. The total size of the 64:1 downgearing system is 11cm x 6mm x 1cm. This is a very convenient form factor for placing lots of ...

pulley downgear.jpg pulley blocks.jpg Above are just a couple more examples of pulley layout configurations for reference and study. These helped me in figuring out my own pulley layout plans. pulley design drawing.jpg Above is my design drawing of a bearing based pulley. The bearing is in the midd...

Why people do not base skeletons around, y'know, human skeleton? Since the end goal is doll that feels as realistic as possible, skeleton as realistic as possible is something such doll would benefit from. Granted some aspects would be different, like longer segments for spine or different jaw desi...

motor hose guide detail.jpg brushless dc motor closeup.jpg These are my brushless dc motors I selected for the finger actuation. It is size 2430 bldc. They are 200w motors so significantly powerful for a finger IMO. In the topmost image, I show my CAD design for a tubing mount that holds the tubing...

The archimedes pulley system CAD image in my last post will give 64:1 downgearing. Compare this to 180:1 standard downgear ratio in a hobby mg996r servo motor for example. Will be a bit faster than that then but still plenty of torque. Another HUGE benefit of pulleys over gears is gears generally ar...

So a key part of this project was figuring out a way to make the robot as silent as possible so that the loud grinding gear noises would not give away that it is a robot and would not generally be annoying and break the illusion of the robot being a real person. I found that this can be achieved by ...