Tell us about yourself!
I have just made this mod and the mosfet was cool during the operation. I also have added a heatsink to the mosfet just in case. I hope mosfet can handle it because I don't have any idea about the "saturation" thing that @acolomitchi mentioned below. Thank you @AndJoeG.
I have a couple of questions to be cleared about wiring. First of all, as I understood from @mickeypop 's sayings, S pin of the RAMPS is "Signal in" pin and it needs to take in 5V voltage. PNP and NPN proximity sensors are different basically as the Black wire could be used as "sinking" or "sourcing" the current as mentioned here:http://www.schneider-electric.co.uk/en/faqs/FA1425...If the S pin is "sinking" in RAMPS how can we use the NPN proximity sensors as they are used for sourcing cards? Are they different in wiring or what? And is there any difference in voltage dividing of these types? Please could someone clarify this mess in my head?
Ok, here is the problem. I have finished the spot welder but it was in a mode of continuous passthrough of the mosfets. I have took out all the mosfets and soldered the new ones but it was still doing the same fault. At last I have considered that maybe the drivers were faulty. Here is the input signal:http://hizliresim.com/qE8rlQOnly one of the drivers working properly and giving the right output:http://hizliresim.com/Mkgry2Two of them were giving no output and one of them were in continuous mode:http://hizliresim.com/QQY9lG
Hi @pompecukor, I have the same problem, the bottom plate is giving constant pass through of current. How did you correct this problem?
Can we use 12v 60a switching power supply instead of car battery?
3s 3000mah 30c lipo can deliver 90A
Hello. I have used IRF1405 and I am about to finish the project. I want to use this welder with 3s lipo. What should be the maximum capacity of the lipo?
Thank you for response. I have added a Cloverleaf antenna and a prototype pcb plate to solder my tx5823. It can fly without the fpv but with fpv it raise to a specific altitude and can't raise more. I have not used the props given above.
Hello. I have just finished the quad with fpv option and it weights 45g with the fpv without the battery. And I wanted to take off it but it couldn't. What is the optimum weight of your quad with the battery?
Hello. The thickest copper wire for welding tips I have found in local shops is 6mm sqare. Does it do the job?
Are the printed parts scalable for use with standard servos? And if they are, which part of the code should we change?
Hello. What type of tact switch did you use, momentary or self lock? Please could you give a sample link? And what are the A0-A3 pins used for?