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Mechanics and Construction / Re: Desperately need HELP on gearing !
« Last post by artbyrobot1 on June 22, 2022, 10:46:27 AM »
I would use a pulley system which is easy to diy following this model: https://youtu.be/M2w3NZzPwOM?t=599

the pulleys can just be fishing string passing through loops - doesn't have to be pulleys with bearings can just be plastic loops shaped like cherios.  Specifically, can put some thread through a piece of wire insulation and use the wire insulation as the pulley.
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Electronics / Re: Robot Controller
« Last post by artbyrobot1 on June 22, 2022, 10:32:38 AM »
yes, a pc is actually what you SHOULD be using.  Once you can afford to upgrade, get a mini pc to replace your normal pc so that you can fit the pc inside the robot.  A mini pc means it has a smaller motherboard mini itx motherboard is ideal.  But for now, any pc will do fine for you.  Then, run usb cable from that main pc which is the main brains of your robot and plug the usb into a arduino nano from ebay for $5 and free shipping.  This arduino nano will interface directly to your sensors and motors.  You will need to use many many arduino nanos since you will need many many sensors and motors.

Edit: also, note that your main brains pc will be able to "talk to" your arduino nanos via the usb cable so that it can send them tasks and get info from them.
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Robot Videos / Humanities and Arts Robot
« Last post by thomas121102 on June 21, 2022, 02:49:42 AM »
We are a small team of high school graduates who want to promote humanities and arts activities, but due to the severe epidemic, we cannot go to the exhibition to enjoy the exhibition, so we want to investigate the public's opinion on this matter. ;) :)
http://url.tfitw.org/4abhy9
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Misc / Re: Laser Scanner Rangefinder - Detecting a specific object
« Last post by cerenzop on June 17, 2022, 06:25:54 AM »
You can attach a large sphere to the target object that has a unique color in the scene.
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Misc / What is a printed circuit board assembly -FS Technology
« Last post by FSPCBA on May 23, 2022, 11:54:07 PM »
I believe that many people have come into contact with PCBs in their lives, maybe they have heard them in their lives, or they have seen advertisements. But you may not know much about pcba. In the end what is pcba, what is pcb? Let's take a closer look at the difference between the two.

What is PCBA

The full name of PCBA is Printed Circuit Board +Assembly.That is to say, pcba is the whole process in which pcb goes through SMT on PCB empty board, and then goes through DIP plug-in.

Note: SMT and DIP are a way of integration of parts, the main difference is that SMT does not need to drill holes on the PCB, and in DIP, the PIN pins of the parts need to be inserted into the holes that have been drilled.

Circuit boards produced by FS Technology

SMT is a surface mount technology, FS Technology's process is: PCB board positioning, printing solder paste, placement machine placement, reflow oven and finished product inspection. The full name is "Surface Mount Technology"

The full name of DIP is "Dual In-line Package", that is, "plug-in". Simply put, it is inserting parts on a bare PCB board. Its main production process is: sticking adhesive, plug-in, inspection, wave soldering, printing and finished inspection.

What is PCB

The full name of pcb is "Printed Circuit Board", and the memory card of the "Little Bully" game we played when we were children is a finished product assembled with pcb.

Because it is made by electronic printing, it is called a "printed" circuit board. PCB is an important electronic component in the electronics industry, a support body for electronic components, and a carrier for electrical connection of electronic components. PCBs produced by FS Technology have been widely used in the production and manufacture of electronic products. It is widely used because its unique characteristics are summarized as follows:

3d printer circuit board produced by FS Technology

1. High wiring density, small size and light weight, which is conducive to the miniaturization of electronic equipment.

2. Due to the repeatability and consistency of the graphics, the errors of wiring and assembly are reduced, and the maintenance, debugging and inspection time of the equipment are saved.

3. It is beneficial to mechanized and automated production, which improves labor productivity and reduces the cost of electronic equipment.

4. The design can be standardized, which is convenient for interchange.
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Misc / Confused college student
« Last post by FSPCBA on May 23, 2022, 04:28:43 AM »
This is my first post. I just graduated from college and entered the circuit board industry, but I am not familiar with this industry at all. I studied public utility management in college, I hope someone can give me some advice.
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Misc / ???????????????
« Last post by nalyievi on May 06, 2022, 05:08:00 AM »
?????? ???????? ?? ????? ?????????? ?? ???? ? ?????????? ???????? ??????????????? ?????????? ? ??????????? ?????? ????????? ???????? ?????????? ?????????? ? ????? ???? ???????????????? ?????????? ??????????  . ?????: ??????????????? .
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