6 жыл бұрын
Пікірлер
@1113562 19 күн бұрын
Okay. Since my original question I'd purchases stepper motors and stepper driver/ controllers from StepoerOnLine. I realised then that the pulse, direction and Enable signals are opto coupled so using 12 V with a 1k limit resistor is perfect but 5 V with a lower series resistor to get the same 10 or so milliamp drive to the opto LEDs.
@mattivirta 19 күн бұрын
T 31;38 or can use cheap solid state relay need only screw wires and all ok. and etc, my machine linux cnc plasma, can use 2 breakout board, same board but have 2 pcs, old computer paraller port one and pciE paraller port card have second card, lot more input/output terminals. and limit switch not need if use software limit in software has settting but important have XYZ home switches . and probe/torch height. i uses pin input, E-stop pin 10, home sw pin 11,12,13, Torch height pin 15, all limit sw pin 14 or second paraller card. limit SW can use paraller whit E-stop SW. all together. same doing all E-stop if go out machine rails.
@mattivirta 19 күн бұрын
all same parts can use build cnc mill machine, carving wood and aluminium, only Z axis need made different can use spindle motor. and best software this have linuxcnc.
@darrenturner6090 26 күн бұрын
Awesome video and explanation, cheers for the content 👊😎
@vankatanemuedobre Ай бұрын
Hey! Great build you got there! I build a small cnc table to try out and using Lotus LTP 5500cnc but the plasma randomly stops sometimes got (I think) good ground to the piece and new consumables any tips would be much appreciated
@enriquegoycoolea8431 Ай бұрын
this guy is better than me and been a jman fabricator 7 years xD i love learning from your videos thank you
@Kleber584 Ай бұрын
Muito bom o vídeos!!
@denisemiller7387 Ай бұрын
Great job. What is the A axis?
@ToshDavis Ай бұрын
The A axis is the slave axis to the X axis. To drive the gantry it requires 2 motors and one of the motors is the X and the other motor is the A
@mattivirta 19 күн бұрын
one motor X,Z and 2 motor to Y axis.
@kieranproven4874 Ай бұрын
Thanks for the build series. Man, that CNC has done some great cuts. Well done mate.
@andypag1071 2 ай бұрын
How much margin do you leave on the work piece? Is there a way to use existing straight edges for parts? Or seperate parts with a single cut?
@ToshDavis Ай бұрын
I usually leave 1/8” to 1/4” of margin, but it also depends on whether I’m trying to squeeze a lot on a sheet. I am not sure I understand using existing straight edges? You can separate the parts by doing a new tool path if that’s what you’re asking
@alessandrocampetti1357 2 ай бұрын
Come faccio a collegare la torcia che domanda sempre accesa adesso che l ho montata sul telaio per incisore laser ?
@ToshDavis Ай бұрын
Connecting the torch is dependent on the torch you use. But you need to find the trigger wires on the torch and connect those to the relay on the breakout board
@gustavoabarzuavega3539 3 ай бұрын
Excellent video, very practical, I have one question, is it not necessary to connect the ground connection of the power sources? Thank you
@ToshDavis Ай бұрын
The whole thing is grounded to the electrical box. I never really had any grounding issues
@mattivirta 19 күн бұрын
@@ToshDavis ground have important add cable/wires all machine frame,elektric box, transformer etc wiring to ground. and if use milling machine spindle whit VFD important VFD to spindle cable have shielded and ground connect.
@jmyers9853 4 ай бұрын
i like your craftsmanship, excellent
@jmyers9853 4 ай бұрын
this is not a flimsy machine
@Zimbob2424 6 ай бұрын
looks like linuxcnc wiring, so I'm guessing that's why most are compatible with both. thanks the explanation helps. You can also buy those relays, I didn't understand what they were or were for , I do know thanks.
@mattivirta 19 күн бұрын
this breakout board relay have pin 17, then need add this realay use solid state relay coil use, and plasma start SW wires is solid state relay, simple.
@ckgurr 6 ай бұрын
Great video, but music is too loud, it’s hard to hear you.
@ToshDavis Ай бұрын
Noted thank you for the feedback
@Iamtherodlight1453. 7 ай бұрын
Yes, please put together all that info and also thank you very much for making this video
@TheDIYer 7 ай бұрын
what is the height between torch and work for pierce and cutting both?
@ToshDavis Ай бұрын
It depends on the machine, but I’ve been using 3/16” for pierce I believe and 1/16” for cut. But these values are specific to the machine
@The_Unobtainium 7 ай бұрын
Big NO to fusion360 for their subscription policy and lies that "it will always be free for hobbysts"(lars christiansen, many times)!
@ToshDavis Ай бұрын
I agree Fusion360 has gone downhill significantly
@takudzwamatangira2250 8 ай бұрын
Hie Tosh Can we exchange emails ,there are some details I want to confirm with you
@takudzwamatangira2250 8 ай бұрын
What software are you using for post processing
@ToshDavis Ай бұрын
Fusion 360
@roberthosking7524 9 ай бұрын
That was a thick piece of metal you cut. How many amps is your plasma cutter?
@ToshDavis 9 ай бұрын
It’s 40 amps. Its the Hobart AirForce 700i
@roberthosking7524 9 ай бұрын
Impressive cut. My cheap ($160) 50amp Plasmargon machine wouldn't stand a chance. Nice build.
@ChloeGates-mr7mk 9 ай бұрын
helpful video and great job. swallowing loudly into the mic like that=thumbs down
@ToshDavis Ай бұрын
Noted thank you for the feedback. I’ve gotten a new mic on the newer videos so it should sound better now
@tpace 9 ай бұрын
tosh I've followed your cmc plasmas table build very closely and build one using your plans almost to the tee. I did use open builds black box as I'm very new to this and feared the electronics and computers more than anything. It's up and running cutting out trial tabs etc. much thanks for all your help. I am struggling with significant bevel (20-30 degrees and parallel in y negative and y positive travel) on my cuts however, especially on the y axis. both side of the the tab bevel the same direction. the x axis cuts are perfect in positive x travel, and beveled in negative x axis travel. I've messed around with torch alignment, cutting heath and speed, but I'm really stretching my head. any suggestions?
@ToshDavis 9 ай бұрын
Hi. Glad you were able to get your machine cutting. I'm sorry to hear about the bevel though. When I've struggled with bevel it normally is when the cutting tip is old. So I would first start will replacing the tips and see if that works. On my plasma cutter I have to replace the tips quite frequently to have nice cuts. The thickness of the material affects the cuts a lot as well. If I'm cutting on an older tip on thicker material I'll have a bit of bevel, but if I cut using the same tip on thinner material anything under 1/8" then there is significantly less bevel. Another part that causes bevel is the cut height I would make sure you're cutting that the optimal height for your machine. It should say somewhere in the manual. I think if I got a Hypertherm or some nicer machine it would cut nicer as well.
@awotdereje508 9 ай бұрын
Help! This is the best vedio I have ever seen so far. and I have build my own plasma cnc but the problem is when I trigger the plasma and start cutting I am getting EMI interference. Please help
@ToshDavis 9 ай бұрын
I'm sorry I'm not entirely sure how to fix this. Have you tried making sure you've grounded everything. I'm sorry to say but your best option might be to buy a new plasma cutting machine. I know there's different starting mechanisms and one of the ways creates a lot electrical interference while the other does not. So your best bet is probably to get a machine you know will not create the interference.
@86toutoune 10 ай бұрын
Very helpful video, thanks !
@ToshDavis 9 ай бұрын
You're welcome! Glad you liked it
@RoyMeraki 10 ай бұрын
awesome build! how did you managed torch height control feature? Sorry I am a newbie and might sound like a dumb question, but is floating head and THC the same thing ?
@ToshDavis 9 ай бұрын
Thank you. On this machine I just have the z axis mapped to the page up and page down keys on the keyboard and while the machine is running I just watch the torch height to adjust it. A floating head is slightly different from a THC. It is the part that zeros the torch height before every cut while the THC is the part that adjusts the height of the torch during the cut.
@GeeEmJay 10 ай бұрын
Depending on how much voltage/current is being passed through that relay at 31:17 you may need a flyback diode. If it's just DC low volt/amp to trigger the plasma, might not need it but it's good practice to put one in place and / or use an optocoupler so the circuit is isolated from the high volt/current side of the relay trigger
@ToshDavis 9 ай бұрын
That's really good to know. I didn't know that, thank you. I do know it's pretty low voltage, probably not more than 5v, I don't remember exactly though.
@frodesteen4751 10 ай бұрын
Do you have the drawings in mm?
@ToshDavis 10 ай бұрын
I don’t. I’m sorry
@mattivirta 19 күн бұрын
@@ToshDavis why not 98% all earth country uses metric system, only 3 country use old cave men imperial system today ,
@1113562 10 ай бұрын
What voltage are the pulse and direction signals to stepper controllers from the BOB. Are they 5 V logic or 24V ? I cant think why the BOB needs 24V supply as well as 5V
@ToshDavis 10 ай бұрын
I believe the pulse and direction signals are 5 V. But the 24 V is needed to drive the motors.
@1113562 10 ай бұрын
Yes 24 V is definitely used for driving the Stepper Motor coils and this is provided directly by Connecting the 24V to the Stepper controllers so why is 24V connected to the PC parallel port Break Out Board (BOB). This board is for distributing 5V signals to the controller Direction, Pulse and Enable inputs. My understanding is that the controller signal inputs (eg. Pulse and Direction) are opto isolated so do not even need a 24V reference.
@ToshDavis 10 ай бұрын
@@1113562 Oh I see what you're saying now. After understanding your question I wasn't entirely sure as well. So this is the response ChatGPT gave me: Powering Relays or Other Components: The BOB might have components like relays that require a higher voltage to operate efficiently. These components could be used for controlling spindles, coolants, or other peripherals associated with the CNC machine. Voltage Level Shifting: While the signal inputs are opto-isolated, the board might still require a higher voltage reference for proper level shifting or for powering the opto-isolators themselves, ensuring that the signals transmitted to the stepper drivers maintain integrity and reliability. Enhanced Noise Immunity: Higher voltage levels can offer better noise immunity, especially in industrial environments where electrical interference is common. By providing a 24V supply, the BOB ensures that the system is less susceptible to interference, enhancing the reliability of the CNC machine's operation. Hope this helps! I definitely learned a lot as well.
@1113562 10 ай бұрын
Hi Thank you. Level shifting was my only thought as well but if tge stepper controller uses opto isolators these only need a few Volts. An opto isolator is only a LED and a photo sensitive open collector transistor located in close proximity in the chip. There would need a limit resistor so the diode doesn't draw excess current so I'd be surprised if the pulse, direction and Enable inputs would need or be able to cope with 24 Volts. I cannot find a data sheet for the stepper controller used to confirm what the signal voltage level range is.
@ToshDavis 10 ай бұрын
@@1113562 Ya not sure as well. If I had to guess I would say it has to do with the relay or spindle as I know the spindle outputs up to 10 volts.
@KeithMonzo 11 ай бұрын
Where can I find the shared files for this build?
@ToshDavis 9 ай бұрын
drive.google.com/drive/folders/15-VB_C83l9_h0AWPfbR0ykw4-l7BKIDe?usp=sharing
@georgefredette2518 11 ай бұрын
Exelent information thank you. I see the motors are 36v and the power sorce is 24v, Is this corecct or am I missing something
@ToshDavis 9 ай бұрын
I'm actually not sure. The motors might be rated up to 36v. But yes the system is ran on 24v.
@jeffwall5579 Жыл бұрын
Hi, would it be possible to e mail the plans that are diamentioned for the average guy that is not computer savvy to build ? Thank you
@ToshDavis 9 ай бұрын
drive.google.com/drive/folders/15-VB_C83l9_h0AWPfbR0ykw4-l7BKIDe?usp=sharing
@ToshDavis 9 ай бұрын
The plans should be accessible here. There's a PDF you can download here
@takudzwamatangira2250 Жыл бұрын
Hello....Are the motor tensioners usefull in this scenario considering you are using rail and not belt driven motors
@ToshDavis 9 ай бұрын
I don't think they are as useful compared to the use in the belt driven system. But I do think they still have some use to not loading the stepper motor shaft. But ya not as useful in this case compared to a belt driven system.
@ValHades Жыл бұрын
Great video
@ToshDavis 9 ай бұрын
Thank you! Glad you enjoyed it.
@DogSerious Жыл бұрын
Leaving it to the elements like that will make sure it's broken before too long!
@ToshDavis 9 ай бұрын
Ya I wish I had a bigger shop!
@doroscnc Жыл бұрын
the best video in youtube build cnc plasma
@scraptech3152 Жыл бұрын
Really good job!! You saved allota money building your own. 👍
@surginerc Жыл бұрын
I have built a couple of CNCs but was never able to capture my work. Maybe camera shy, anyway i have not tried a Plasma, I want to thank you for the effort it took you to document. You did a good job and it was helpful to me.
@surginerc 11 ай бұрын
Disregard I found it!
@ToshDavis 9 ай бұрын
Oh awesome! Sorry for a very late response. Glad you got it!
@mattivirta 19 күн бұрын
i have same parts make cnc milling machine, and laser carver, and plasma machine. whit linuxcnc software and arduino has made 3D printer.GRPL software all same computer can use. 3D printer uses web octopuss raspberry pi server. can add camera and phone apps too.
@joshuacaylor881 Жыл бұрын
Are there any nuances or differences in the initial settings for floating z setup if I’m using fusion360 and post-processing in open builds? I just finished my first table and it’s down to these settings before coming alive.
@ToshDavis 9 ай бұрын
Hopefully you got your machine up and running. Sorry for the late response. I don't think there is any nuances, it should just be the setting I pointed out I believe.
@stoneyprowell2601 Жыл бұрын
And also ware can i buy everything needed for this build and the names and sizes of all the materials and aluminum and steel square tubing
@ToshDavis 9 ай бұрын
I'm not selling the stuff any more I just got too busy. But if you give your local shop the dimensions they should be able to make it for you.
@stoneyprowell2601 Жыл бұрын
Can i please have your plans so i may build me a table please respond
@ToshDavis 9 ай бұрын
drive.google.com/drive/folders/15-VB_C83l9_h0AWPfbR0ykw4-l7BKIDe?usp=sharing
@keithbrown4878 Жыл бұрын
This is the part of your build that I had the hardest time with. You did a great job with your tutorial. l had struggles with Fusion 360. The Fusion 360 learning curve was very steep for me. I do have My machine up and running. I could not be happier with the end results. I did add Proma THC along with splash rails and a water storage under the table with filters and a pump to refill. Mine sets in the shop and the water evaporation raises the humidity. I don't use it every day. It made sense to me not dragging a hose out refill. Thank You again for your excellent build video.
@ToshDavis 9 ай бұрын
You're welcome! I'm glad you got your machine working great!. Ya Fusion360 honest sucks. I hear OnShape is launching a new CAM system in the summer so hopefully it's a lot better because it would be nice to move away from Fusion.
@wingez2445 Жыл бұрын
how did you the seting of prope or thc sensor i dont understand this part
@ToshDavis 9 ай бұрын
I'm not sure I understand the question. The setting for the probe is set in Mach3
@John-te4nu Жыл бұрын
APlastic spoon works for smoothing thecorners better than a finger
@ToshDavis Жыл бұрын
Hahaha very true! Good to know. Didn’t think of that. Thanks!
@aarontobin1740 Жыл бұрын
Hi I’m going to build my own table using the same idea as your one but I have a few questions about the wiring I’d there any way I can get in contact with you about it? Thanks!
@ToshDavis Жыл бұрын
You can email me at [email protected]
@bazookabharath Жыл бұрын
Thank you Bro. Very simple and to the point.
@ToshDavis Жыл бұрын
Glad you enjoyed the video!
@bazookabharath Жыл бұрын
Thank you Bro. Very simple and to the point.
@ToshDavis Жыл бұрын
Glad it was helpful!
@johnross3752 Жыл бұрын
not good
@ToshDavis 9 ай бұрын
I'm sorry to hear that
@mattivirta 19 күн бұрын
its perfect, better than many other system, only need change software mach3 non safety to safety linuxcnc software.
@Skullmonkey456 Жыл бұрын
Great thank you
@ToshDavis 9 ай бұрын
You're welcome