How To Build An Unstable CNC Controller

This video covers a content creator covering him updating his CNC controller without EMI mitigation, using a USB motion controller, and no ground bus installed. Please use extreme caution when following content creator videos.
Please due your research before following any content creators video as the content they produce are for entertainment, and best practices are seldom followed, or understood.
If you have questions, or require quotes please message me direct at [e-mail] or through my eBay store here. www.ebay.com/s...
Below is a link to my soldering components that support the issues covered in this video.
Kester #44 Rosin Solder & Kester 186 RMA Flux, Heat Shrink 3mm,6mm,1/2in Pro Kit www.ebay.com/i...
Kester #44 Single Tube Solder & Kester 186 RMA Flux & Heat Shrink 3mm,6mm,1/2in www.ebay.com/i...
Kester #44 Rosin Solder & Kester 186 RMA Flux, De-soldering Braid & Heat shrink www.ebay.com/i...
Here's the link to the Yihua 995D+ Soldering Station Package www.ebay.com/i...
Here’s the link to the Yihua 908+ Soldering Iron Package www.ebay.com/i...
Here’s the link to the Yihua 200C Automatic Tip Cleaner www.ebay.com/i...
Custom cut heatshrink in whatever size you require along with whatever quantity you require to streamline your builds. Please message me your requirements.
CNC components are listed below.
Pro-Grade CNC Electronics Enclosure Pre-Milled (EMI Shielded) 19W x 24Lx 8.75H www.ebay.com/i...
CNC Ground Buss Bar System Complete With SC25-8 Terminals And 2Ft. Ground Strap www.ebay.com/i...
CNC Power Supply 48v 12.5a (600w) With Built In EMI Filter
www.ebay.com/i...
Zippy VW1 (IP67 Rated) 3 Waterproof CNC Limit/Home Switches
www.ebay.com/i...
Zippy VW1 (IP67 Rated) 4 Waterproof CNC Limit/Home Switches
www.ebay.com/i...
Here's a link to my Ethernet Smooth Stepper turnkey package www.ebay.com/i...
Here's a link to my UC-400 Ethernet Turnkey Controller package www.ebay.com/i...
CNC 18/4 Double Shielded Pre-Built Motor Cable With All Required Connectors
www.ebay.com/i...
CNC 18/4 Double Shielded Built Motor Cables (3) With Dual GX-16 5 Pin Connectors
www.ebay.com/i...
CNC 3-18/4 Double Shielded Pre-Built Motor Cable & GX-16 Filtered Connectors
www.ebay.com/i...
CNC 18/4 Double Shielded Pre-Built Motor Cable & GX-16 Filtered Panel Connector
www.ebay.com/i...
CNC Double Shielded Breakout Communication Cable (Gecko Drive, Onefinity CNC) www.ebay.com/i...
CNC Cooling Fan 30-48v 60mm x 38mm (65CFM) Tool Less Mount, Fan Grill, & Filter www.ebay.com/i...
CNC Cooling Brushless Fan 30-48v 60mm x 38mm (65CFM)
www.ebay.com/i...
Terminal Splitter Kit For A/C Input 110v/220v (Gives 12 Outputs To Split Power) www.ebay.com/i...
This is my DS Flexion (Ultra Flex) cable.
CNC VFD Cable 10ft 16/4 DS Flexion For Spindle .8Kw 1.5Kw 2.2Kw 4Kw 4.5Kw www.ebay.com/i...
CNC VFD Cable 15ft 16/4 DS Flexion For Spindle .8Kw 1.5Kw 2.2Kw 4Kw 4.5Kw www.ebay.com/i...
CNC VFD Cable 20ft 16/4 DS Flexion For Spindle .8Kw 1.5Kw 2.2Kw 4Kw 4.5Kw
www.ebay.com/i...
This is my standard 16/4 double shielded spindle cable. (If you're using a cable chain, then my DS flexion cable should be used)
CNC VFD Cable 10ft 16/4 Double Shielded For Spindles www.ebay.com/i...
CNC VFD Cable 15ft 16/4 Double Shielded For Spindles www.ebay.com/i...
CNC VFD Cable 20ft 16/4 Double Shielded For Spindles www.ebay.com/i...
CNC VFD Cable 30ft 16/4 Double Shielded For Spindles www.ebay.com/i...
Here's my 22/2 double shielded accessory cable.
CNC Double Shielded 22awg 2 Lead Cable (20ft.) (Bullet Proof Protection)
www.ebay.com/i...
CNC Double Shielded 22awg 2 Lead Cable (30ft.) (Bullet Proof Protection)
www.ebay.com/i...
CNC Double Shielded 22awg 2 Lead Cable (100ft.) (Bullet Proof Protection)
www.ebay.com/i...
Here's links to the GX-16 prewired connectors discussed in the video.
CNC GX-16 3 Pin Male Panel Mount Connector Wired Silicone Leads & EMI Filters www.ebay.com/i...
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[@rmacster]

A friend and I bought components from Corvetteguy to convert an old plasmacam system. It works amazingly well (IMO, WAY better than the original) and the ongoing costs are ridiculously cheap as compared to plasmacam.

[@corvetteguy50]

Thank you Rick, I really appreciate the kind words, and support, and I'm glad your system is making money! Thank you, Vince

[@rafaeldiegonavarro]

And that’s why I use 24 volt signals instead of the silly 5 volt signals that regularly used to drive stepper drivers . Screw USB or Parallel port too! Ethernet shielded is the way to! Go ! That’s why I love my Acorn controller true and tested! Tons of support, references and manuals .

[@corvetteguy50]

Thank you for your support. Ethernet is for sure the way to go, but while the Acorn solution you use works well for you there are much cheaper ethernet solutions that are open source, and not proprietary in the motion control software it can use like my UC-400 turnkey ethernet package. www.ebay.com/itm/144862296429 Also support for the Acorn is free if you use their forum. If you want direct support its a paid service. One more point is the Acorn's motion control software for unlimited G-code use ranges from $175-$399 on top of the cost of the Acorn board itself. The free software they include with the board only supports 50kb G-code files. Thank you, Vince

[@xjstevie]

And BTW there are how many systems using USB out there without any problem, how about a couple videos on system that don't and I don't mean those very very expensive systems, I'm talking home hobby or small shop

[@corvetteguy50]

All end users are at risk using USB controllers for stability issues. If you're fine using it then go for it. How about instead of talking listing some the systems you claim are fine using it, and I bet if we use Google we'll find someone having issues with disconnect issues with that specific system. This video is for those that expect piece of mine, and stability for their systems. Hobby, and small shop users still expect a reliable stable system don't they? They expect to hit cycle start, and not get disconnect issues, or random stops correct? Facts don't care about your feelings, and USB isn't stable for CNC signals. We all know the answers to these questions, and you do to. Thank you, Vince

[@sasasasa711]

RNR Motion card by Bitsensor /Drufel CNC is cheap USB Based Controller. But Give good care here..! may help.! You need to Protect all the wires with shielding primarily. At least Signal Wires first. But also High Voltage lines need to be shielded as well for best results. The Shielding catches the HF Noise radiated by HV lines and sends them to earth Ground There are two types of shielding to tackle High and Low frequency Noise by sending them to Earth ground. So You need to shield both low and high voltage lines Delicate signal wires such as Step,Dir,Estop,Limit,Home ...etc should be as short as possible, and those wires should also be shielded, and one end of the shield should be connected to a common Ground Bus Bar within the Enclosure. Try to reduce the length of signal wires as much as possible. And route the signal wires in such a way that low voltage signal wires never go in parallel with High volt lines. Low and High Volt Lines may cross at some points, But never be routed together.! The spindle cable,which is one of those high frequency lines ,400HZ at full RPM @ 440V/250V may pump insane level of amps at slight instances, which is enough to confuse delicate signals..! So route it in a separate cable tray/drag chain. Dont let it travel close to the limit/estop/step-dir/Home signals..! And also wrap with shields or use shielded cables and tie one end of that shielding to earth.!

[@corvetteguy50]

Thank you for your support. Well said. Vince

[@mariusj8542]

Not sure USB is unsuitable but your argument is sound off course. But let me just argue for the USB. Today most system has a stack of commands in the motion planer. The stack/ queue is 10 to 1000 steps ahead, so normally it’s fine to use serial communication (USB), since the next 1000 steps are already in memory. The biggest issue is if priority flags to the mcu like a e-stop should happen to be sent several times due to interference, but again remember that most run on a baudrate higher than 1000000( one million), so even with interference on a priority flag/ interrupt the lag is milli seconds. When you install ie Linuxcnc or grblhal, Siemens, Fanuc etc. they block system interrupts from the operating system like windows and Linux, and some use even the old parallel port, but that is not needed anymore, since we now can split the calculations from the actual command stack. Meaning the mcu just get a long list of vector coordinates instead of the old systems where both calculations and gcode ( vector coordinates) where done on the same machine. This is what klipper firmware did a few years back with 3d printers, and what advanced robotics/ multi axis cnc’s have turned to.

[@corvetteguy50]

Marius, thank you for your support. The programming demands are very rarely associated with an unstable system. I've had clients set their USB suspend function correctly, and CPU priority. Packet loss I've never personally seen on any modern Intel I5, or similar AMD multicore system with at least 16gb of memory installed. USB is simply unstable, and not worth investing in for CNC production robotics period. Cheaper models on the market come bundled with it, and I ask all end users interested in purchasing one of these systems to Google it to see if its USB controller has experienced disconnects from any of its end users to see the truth. A 3D printer is fine as its EMI is much lower as is a vinyl plotter, but for mills, routers, and plasma systems USB is simply a waste of money for end users expecting a stable system. The worst part about an unstable USB system is you never know when it will show up. I've had clients use their systems for a few weeks before the disconnect issues start happening. Ethernet is worth every penny for any end user expecting a reliable consistent system. Thank you, Vince

[@xjstevie]

How about stop taking out everybody else and do a series on doing it right.. You mention 100s of times they show the wrong way but not the right and please please stop talking about yourself, it's getting irritating...

[@corvetteguy50]

Steven Barnard, its obvious you didn't review my channel with over 490 videos as I cover many system builds showing exactly what best practice is. Please take some time doing research before making assumptions. Thank you, Vince

[@TheMarciotec]

Olá. Acompanho os vídeos @Corvetteguy50 e afirmo que tudo que ele já afirmou está corretíssimo. Graças a este canal, pude fazer meu painel CNC de 5 eixos imune a interferências externas. Dá um bom trabalho, mas a máquina fica estável. Se não fizer um painel correto, com fios blindados e blindagem aterrada, com todas as coneccções soldadas, e usando termorretrateis e bem distribuídas dentro do painel. Será em vão todo serviço que fizer. Dá a maior dor de cabeça desfazer esses erros.

[@corvetteguy50]

Thank you for your support, and I'm glad to here your system is performing stably! Thank you again Vince

[@mattivirta]

i has build to small manual workshop many customer old manyal milling machine to new cnc machine(retro fit), many hundred machine has build, and ewer NOT used USB breakoutboard, because not safety not stabile, lot only problems and all usb board uses windows softwares what newer NOT used any factory automation ewer because not hav REALTIME and stabile OS system totally not safety OS. lot better use linux OS i not has seen any windows OS any factory automation system used, only linux OS. and NOT USB controller boards, all have paraller or pci to paraller or FPGA card systems. lot better safety and stabile systems. and ALL soldered plug need be shrink tube insulation of course. and CAN use many power supply but need know what doing, not loop power, and all cover need Ground. and not true all need EMI filter sure, and good if use shielded cable, and ofcourse all small voltage go different way than high voltage, and not have long cables no problem , after 20-60 meter have long cables sometime problems. not before. hobby builder any cable not have long, no problem, whit gauge size, or warm.