Very nice, a professional design EDM generator! Did you stack 2 48V supplies for the 100V=? In old AGie 'BiPuls' a hundered milliamps of 105Vdc was used to ignite the spark ( begin breakdown ) then a different 100V supply was triggered (allowing IsoPuls). So only a tiny generator is needed to begin the spark ( voltage ,atters, not amps!), and (not AGie) then a lower voltage pulse could do the heavy work ( say 48 or 60V, just > than th 28-32V discharge voltage ) . So, a lot of energy need not be dissipated thru bulk resistors ( typicaly 8 ohm, 300Watt). This is very interesting, I will watch for further developements. For experimenters: The .pdsprj file is for Proteus ( an EDA suite that includes circuit simulation from Labcenter Electronics Ltd). ProteusDesignSuite DEMO is available for free from Labcenter and will run on Linux under wine ( no need for wine64,tested with Debian 10). Thanks TomP
An interesting project! If would be good to have the opportunity to buy separately the electrical part of the installetion. Since the transportation of a fully assembled machine will be expensive. With best wishes!
hello, very good video!,one question, the current control unit, is it in charge of monitoring the consumption of the pulses? Due to what I understand about the subject and your design is that you control the pulses with an atmega328 but why the 3 mosfets, to distribute the charges? It could be done with a single mosfet . Or is it done with all three for smaller pulses?
If he distibutes the total-pulse-countr through 3 mosfets, I believe that the burden is smaller for each single mosfet. This way, you can use cheaper mosfets. A cheaper mosfet won´t manage the required frequency, but 3 will, each one of them working at 1/3rd of the demanded frequency.
Hello! I really enjoyed watching your video and was wondering if it would be possible to share the codes you used in the project. I appreciate the time and effort you put into creating your content and would greatly appreciate your help. Thank you so much!
About the sparkings will have interference the microcontroller from normal operation, did you experienced that in the one you are using? Will ardurino board be better as it has ground and voltage plates shielding to surpress them?
Yes. You can gaet some problems with microcontroller operation. It is very important to protect it. And it doesn't matter using arduino, or the microcontroller only
Hi! Great video, thanks for sharing. If you can, pls explain the LCD information. "Freq" is clear, but not "P" and "Duty". I guess "Duty" is duty cycle, but duty cycle should be in percent, not in seconds, because duty_cycle = (t_on / (t_on + t_off)) * 100%. t_on here is the duration of the period when the output is HIGH, and t_off is the duration of the period when the output is LOW I also have no idea what "P" (also in seconds) means
Ok, I think I got what the "P" is. It's a period in seconds that corresponds to the given frequency, right? But, if so, I think the units are not correct. For example, at 5:20 according to the LCD the frequency is 5kHz. Period that corresponds to this frequency is 200000ns or 200us. The LCD shows 200ns, which is not correct
Thank you for your question! P - means pause between the trailing edge of the pulse and the rising edge of the next one. You right usually they use duty cycle as a percent of frerq. But Atmega is slow with float variable and real durations is more comfortable for development.
Display shows is not calculated value but this value from oscilloscope and include time of rising and falling of mosfet. 5 kHz is 200 us and pulse duration is 1000ns than pause is 199 us display shows 198 becuse depend on type of drivers and MOSFETS. ps/ I paid atantion that display shows 198ns insted 198us but video has osciloscop diagram and we can see that pauses is quite longer that pulses are. Thank you very much for you interest to my project.
Any estimate of power capacity with this unit? I hope you are generous enough to make this open source. It truly looks like a project that could bring EDM to the masses
Hello, i am very interested in your EDM design. You made a very good video showing your circuit. Are you going to sell a kit or a completed fully assambled unit soon. This is a very interesting unit,and i would like to buy a kit or assambled one from you..Please have them available for us to order..THANK YOU....
Will you be selling these power supplies or are the Gerber files available? Very keen to try and build a wire EDM of my own. Yours looks to be the most complete unit.
Наши люди в Голивуде :) Акцент, родной акцент =) Результаты впечатлили, с недавнего времени хочу для своих задач такую штуковину. Проект открытый или под комерцию? Как его можно повторить в ускоренном режиме? :)
@@firstmotionlab Ah yes ! I looked through all the videos thinking I had missed some part or link... Hahaha I'll wait for your new videos... I dream of having my EDM!!! Congratulations on the videos!!
@@mogergog Next steps are more difficult because could depend on a lot of facts: duty pulse frequency, liquid, and the material you cut and voltage you use, spark energy and ect
@@JonnyDeRico He used 3 logic gates of the type “and” (TTL) to set the appropriate current. As for logic gate No. 2, does it take a square signal from the processor?
@@user-hn4tg2su4d it is although about the shorter rise time you get when connecting outputs in parallel (old trick). You want sharp edges without overshooting on your gate trigger signals. A mosfet driver would be even better. Isolating the powerstage from the controller (optocoupler) I would highly recommend.. free running diodes to catch VCC voltage transients. There is room for improvement
hello, i wanted to build something like that. but my mosfets dies everytime. my pwm circuit is 1-150 khz and percentage dutycycle. its output connected to mosfet driver. but it doesn't work. i can't ask the circuit but at least you can post a mosfet protection circuit for this. and why you are use irfp250n its rds/on is high relative to other mosfets? and can we use this circuit for 45 50v? please help and thank you.
Thank you for your attention to my project! First of all, you need to find the reason your mosfets dead(gate side, high side, overheat ect.). There are a lot of reasons can be. Maybe irfp 250 is not the best choice but high-current transistors have "heavy" gates and high rds. Nevertheless, for 1-150 kHz irfp250 is acceptable. 45-50V you can use of course and it depends on what kind of EDM you gonna make. Even if you have the correct circuit that is not enough. You need to develop the correct topology of elements.
@@firstmotionlab thanks for quick reply. I am not succeed yet. I think my tophology is wrong. i want to test my crcuits in software first. i think you use eagle but i downloaded eagle and its not like that anymore. where can i find eagle like yours
@@firstmotionlabHello, I'm also interested, does it come with all the components or not? Does this circuit allow using a larger diameter electrode, up to 5 mm?
Thank you for your interest. Now I can offer just a chip with firmware for EDM. Power part you can assemble yourself. And it can be made for 5 mm diameter electrode too.
Hello, Ithe required library LiquifCrystal_I2C is not available from the suggested url ( 404 error ). And it is a special version that has a lot of parameters to the call ( a lot moe than many LiquidCrystal libs ). Where can we get lib that wll build the demo code? Thanks TomP
No, I cannot try the demo code because the link to the LiquisCrystal_I2C library is broken. I tried using similar libraries and the build fails. Where can we get the library you used? Thank You TomP@@firstmotionlab
@@firstmotionlab thank you for fast answer! Would you make one raw unpopulated pcb and for how much- I'm not so familiar with making pcb's. And, is it possible to use it for sink type edm?
7:06 Ahhh that's the best sound ever XD Congratulations, excellent machine!
Thank you very much for the interest to my project.
Курсы английского от Сашки Невского) Проект хорош)
That's way faster cutting than I expected!
So cool!
Thank you for your interest to my project.
Cool !! One day I can make mine!!! Congratulations !!
Надо было брать электроды не основные, а с рутиловым покрытием (с) 😁 Молодец, прикольная и компактная компоновка вышла
Thank you for your comment and interest to my project...
Nice very well done
Thank you!
nice work friend
Thank you friend!
Bravo.......numbers......cheers
Thank you!
wow, very nice!
Thank you!
This is nice one. Great work!!
If someone can provide me an EDM circuit for single discharge, it will be very helpful.
Thanks
At long last, someone willing to share an actual schematic for a working pulse generator. Thank you. Will you be adding a current sensor next?
I gonna develop this project and I think now how I will do it.
THIS!! If I see another person "Building" an EDM based on a "Commercial" (BAX *cough*) unit, I'm going to scream. Thank you for sharing!!!
@@firstmotionlabgreatly appreciated.
Wow!!!!👍👍👍
Thank you!
Very nice, a professional design EDM generator! Did you stack 2 48V supplies for the 100V=? In old AGie 'BiPuls' a hundered milliamps of 105Vdc was used to ignite the spark ( begin breakdown ) then a different 100V supply was triggered (allowing IsoPuls). So only a tiny generator is needed to begin the spark ( voltage ,atters, not amps!), and (not AGie) then a lower voltage pulse could do the heavy work ( say 48 or 60V, just > than th 28-32V discharge voltage ) . So, a lot of energy need not be dissipated thru bulk resistors ( typicaly 8 ohm, 300Watt). This is very interesting, I will watch for further developements. For experimenters: The .pdsprj file is for Proteus ( an EDA suite that includes circuit simulation from Labcenter Electronics Ltd). ProteusDesignSuite DEMO is available for free from Labcenter and will run on Linux under wine ( no need for wine64,tested with Debian 10).
Thanks TomP
Thank you!
An interesting project! If would be good to have the opportunity to buy separately the electrical part of the installetion. Since the transportation of a fully assembled machine will be expensive. With best wishes!
Thank you for your interest to my project.
Very nice
thank you!
Nice work! Is it possible bought whole schematic of pulse generator?
Thank you! I can offer full assembled circuit for you.
nice work, i noticed you conect 2 power supply in series , i just wonder how you limit the current?
his video just shows how the pulse generator works, You can see my last video there are more details about current limit there.
this is amazing. where can i get the schematics for the PCB?
Thank you for your interest. You can download here that ua-cam.com/video/SWy3Dgn7_aw/v-deo.html.
hello, very good video!,one question, the current control unit, is it in charge of monitoring the consumption of the pulses? Due to what I understand about the subject and your design is that you control the pulses with an atmega328 but why the 3 mosfets, to distribute the charges? It could be done with a single mosfet .
Or is it done with all three for smaller pulses?
Hello! thank you to visit my channel. Yes you can use the one MOSFET of course. I use three to easy remove heat.
If he distibutes the total-pulse-countr through 3 mosfets, I believe that the burden is smaller for each single mosfet. This way, you can use cheaper mosfets. A cheaper mosfet won´t manage the required frequency, but 3 will, each one of them working at 1/3rd of the demanded frequency.
Hello! I really enjoyed watching your video and was wondering if it would be possible to share the codes you used in the project. I appreciate the time and effort you put into creating your content and would greatly appreciate your help. Thank you so much!
The demo version of the code you can download from site www.firstmotionlab.com. Full version of the firmaware is not free.
@@firstmotionlab is it on your website too?
@@manray8513There is the demo version of the code there for arduino Uno/Nano
Very nice work, can you please Send me the list of components ?
Thanks
HI! You can download the circuit diagram from www.firstmotionlab.com there are components there
@@firstmotionlab thank you so much
About the sparkings will have interference the microcontroller from normal operation, did you experienced that in the one you are using? Will ardurino board be better as it has ground and voltage plates shielding to surpress them?
Yes. You can gaet some problems with microcontroller operation. It is very important to protect it. And it doesn't matter using arduino, or the microcontroller only
@@firstmotionlabSo, do your pcb is normal double side or/or not four layers type?
@@ray-charc3131 Ppcb is normal - double side.
Hello, how much high voltage did you use with 3 transistors?
Hello! In this video, 100 volts have been used.
Hi! Great video, thanks for sharing.
If you can, pls explain the LCD information. "Freq" is clear, but not "P" and "Duty". I guess "Duty" is duty cycle, but duty cycle should be in percent, not in seconds, because duty_cycle = (t_on / (t_on + t_off)) * 100%. t_on here is the duration of the period when the output is HIGH, and t_off is the duration of the period when the output is LOW
I also have no idea what "P" (also in seconds) means
Ok, I think I got what the "P" is. It's a period in seconds that corresponds to the given frequency, right? But, if so, I think the units are not correct. For example, at 5:20 according to the LCD the frequency is 5kHz. Period that corresponds to this frequency is 200000ns or 200us. The LCD shows 200ns, which is not correct
Thank you for your question! P - means pause between the trailing edge of the pulse and the rising edge of the next one. You right usually they use duty cycle as a percent of frerq. But Atmega is slow with float variable and real durations is more comfortable for development.
Display shows is not calculated value but this value from oscilloscope and include time of rising and falling of mosfet. 5 kHz is 200 us and pulse duration is 1000ns than pause is 199 us display shows 198 becuse depend on type of drivers and MOSFETS.
ps/ I paid atantion that display shows 198ns insted 198us but video has osciloscop diagram and we can see that pauses is quite longer that pulses are. Thank you very much for you interest to my project.
Very nice project,
Where can I buy....?
Thank you fo your interest to my project! Please contact to me by e-mail. firstmotionlab@gmail.com
It posible to cut metal or alumunium 3mm or 4mm??
Yes, watch tis video. Cutting solid steal 25mm ua-cam.com/video/SWy3Dgn7_aw/v-deo.htmlsi=QlNadLEHwXtPSZ6F
Any estimate of power capacity with this unit? I hope you are generous enough to make this open source. It truly looks like a project that could bring EDM to the masses
Thank you for your interest to my project. Every capacitor is 2uF
will you be making this open source or for sale as a kit? @@firstmotionlab
Hello, i am very interested in your EDM design. You made a very good video showing your circuit. Are you going to sell a kit or a completed fully assambled unit soon. This is a very interesting unit,and i would like to buy a kit or assambled one from you..Please have them available for us to order..THANK YOU....
Thank you for your interest to my chanel. Now I work for final version of the device. I hope it will be ready soon.
Will you be selling these power supplies or are the Gerber files available? Very keen to try and build a wire EDM of my own. Yours looks to be the most complete unit.
Now I only can offer the chip with the EDM generator firmware and circuit to connect it generator
@@firstmotionlabhow much you offered for this system?
Project is not finished yet, so I can't say.
Наши люди в Голивуде :)
Акцент, родной акцент =)
Результаты впечатлили, с недавнего времени хочу для своих задач такую штуковину.
Проект открытый или под комерцию?
Как его можно повторить в ускоренном режиме? :)
Yes. Everything is right. If you have no experience with making electronic devices it won't be easy to do.
@@firstmotionlab Could I count on your help and support?
Yes. You can give me any questions right here.@@diymaster7219
Cool !!!
My dream is to have a homemade EDM!!!! It helps me ? Is the circuit complete? It looks like part of the schematic is missing...
Thank you for your interest! Yes, this is not complete circuit, this is prototype
@@firstmotionlab Ah yes ! I looked through all the videos thinking I had missed some part or link... Hahaha
I'll wait for your new videos... I dream of having my EDM!!! Congratulations on the videos!!
Hello, great video. I made a similar setup, but I've got a lot of electrode wear. Are you experiencing the same?
Hello! Thank you for your interest to my project. Do you use any kind of wire or graphite electrode?
@@firstmotionlab I am using an EDM drill electrode.
Try to reverse negative and positive poles
@@firstmotionlab Thank you for your reply. Switching the poles was not helping. The electrode is wearing out even more rapidly.
@@mogergog Next steps are more difficult because could depend on a lot of facts: duty pulse frequency, liquid, and the material you cut and voltage you use, spark energy and ect
Is it possible to use any comparator for reverse current feeding?
Should be fast enough to shutdown the mosfet in less than 1 us.
@@JonnyDeRico
He used 3 logic gates of the type “and” (TTL) to set the appropriate current. As for logic gate No. 2, does it take a square signal from the processor?
@@user-hn4tg2su4d it is although about the shorter rise time you get when connecting outputs in parallel (old trick). You want sharp edges without overshooting on your gate trigger signals. A mosfet driver would be even better. Isolating the powerstage from the controller (optocoupler) I would highly recommend.. free running diodes to catch VCC voltage transients. There is room for improvement
hello, i wanted to build something like that. but my mosfets dies everytime. my pwm circuit is 1-150 khz and percentage dutycycle. its output connected to mosfet driver. but it doesn't work. i can't ask the circuit but at least you can post a mosfet protection circuit for this. and why you are use irfp250n its rds/on is high relative to other mosfets? and can we use this circuit for 45 50v? please help and thank you.
Thank you for your attention to my project! First of all, you need to find the reason your mosfets dead(gate side, high side, overheat ect.). There are a lot of reasons can be. Maybe irfp 250 is not the best choice but high-current transistors have "heavy" gates and high rds. Nevertheless, for 1-150 kHz irfp250 is acceptable. 45-50V you can use of course and it depends on what kind of EDM you gonna make. Even if you have the correct circuit that is not enough. You need to develop the correct topology of elements.
@@firstmotionlab thanks for quick reply. I am not succeed yet. I think my tophology is wrong. i want to test my crcuits in software first. i think you use eagle but i downloaded eagle and its not like that anymore. where can i find eagle like yours
Hi. Are the PCB’S available through your website? I’d very like to build this.
Hello! Unfortunately, not yet, I need to fix some bugs on the schematic and PCB.
Looks great. I would like to buy pcb card and code.
Thank you! If you have some interest to some parts of that please. write me firstvolt2000@gmail.com
@@firstmotionlabHello, I'm also interested, does it come with all the components or not? Does this circuit allow using a larger diameter electrode, up to 5 mm?
Thank you for your interest. Now I can offer just a chip with firmware for EDM. Power part you can assemble yourself. And it can be made for 5 mm diameter electrode too.
@@firstmotionlab where can I find it
try vibration
An to what cost
I would absolutly buy this from you, just tell me the price and a link..
If you have real interest to my project please contact to me via email.
Hello, Ithe required library LiquifCrystal_I2C is not available from the suggested url ( 404 error ). And it is a special version that has a lot of parameters to the call ( a lot moe than many LiquidCrystal libs ). Where can we get lib that wll build the demo code? Thanks TomP
Thank you for your interest for my project! You tried my demo code and it doesn't work?
No, I cannot try the demo code because the link to the LiquisCrystal_I2C library is broken. I tried using similar libraries and the build fails. Where can we get the library you used? Thank You TomP@@firstmotionlab
@@tjosephpowderly1066 I'll send the lib to you via email. But write pls. what kind of the soft do you use to burn firmware
What is the average of current consumption?or the limit of current
Current consumption up to 10A voltage of power supply is 100v
But i see in the schematic there is a current control unit i think to prevent overload .how much is the current allowed to passes?
@@hichambenk8840 It depends on wich wire used and the blank thik
Where are you from? I want to buy it ASAP
We are in Spain. What would you like to buy?
@@firstmotionlab whole electronics - EDM generator with control display.. is it possible? I am from Slovakia 🇸🇰 can you send me email please?
@@jozefdzugan1828 Yes I can. write me firstvolt2000@gmail.com
I want to buy , how can i contact with you ?
Hello! Write on email please.
I can't see parallel/serial resistors?
Yes, thera are no current limit resistors there.
@@firstmotionlab thank you for fast answer! Would you make one raw unpopulated pcb and for how much- I'm not so familiar with making pcb's. And, is it possible to use it for sink type edm?
@@markobog800 Do you want to assemble the generator using my pcb?
Yes, thank you@@firstmotionlab
@@markobog800 I think I will be able to offer assebled PCBs. Without the box