DIY PCB on a 3018 PRO CNC using Single Sided Copper Clad FR-4

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This is a video of my DIY milling of a single sided PCB (FR-4 copper clad) using a CNC-3018 PRO and laser etching the front fiberglass i.e. FR-4 face using a 7W blue laser to mark components and values.
The back copper plane and front fiberglass face were processed using slightly different toolchains.
Copper Toolchain
1. KiCad EDA: www.kicad.org
2. FlatCAM: flatcam.org
3. Candle: github.com/Denvi/Candle
Fiberglass Face
1. KiCad EDA: www.kicad.org
2. Inkscape: inkscape.org
3. LaserGRBL: lasergrbl.com
Note: The video was made over multiple milling attempts using different sized v-bits. The final PCB shown was made using a 30° 0.1mm V-bit whereas the milling footage is using a 30° 0.2mm V-bit.
Chapter Timestamps
00:00 Create Heightmap
00:45 Milling Process
01:27 PTH Drilling
02:01 NPTH Drilling
02:46 Board Cutout
03:19 Pre-assembly Inspection
04:17 Post-assembly Inspection

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Опубликовано:

25 июл 2024

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Комментарии : 53

@costinbobes3233 2 года назад

The 3018 can do much better if you tighten it a bit. You may have chatter or too much X-Y backlash or play in the bearings... Great idea with engraving, too bad it's really usable on single sided boards only. Oh, and V-bits are only good where a 0.5mm end mill won't go.. give end mills a try.

@AliKhalil 2 года назад

You're right. I am aware that there is play in the spindle carriage. I'll have a look at it again to see if I can find a quick solution. Otherwise, it's not too big of a deal for me at the moment. And thanks for the tip on trying a 0.5mm end mill. I'll try it out. Should cut down the milling time considerably.

@AliKhalil 2 года назад

I tried out the 0.5mm end mill. This is the way! The quality of the trace edges is far superior to that which I achieved with the v-bits. The milling time is faster since I can cut shallower and faster. I'm looking to find some better i.e. more durable bits. I would love to find something that has a really tiny flute length since I'm only cutting down to 0.05-0.1mm depth. For anyone interested in trying be aware that because of how thing they are the bits can be really fragile. I broke 3 before I got my first successful run... and those were even before I started the milling. After I slowed down and took a bit more care while handling it was fine.

@mcbriers2862 2 года назад

@@AliKhalil A wider angle v-bit also worked better for me than the 30degree ones. I single pass is often enough for me.

@AliKhalil 2 года назад

@@mcbriers2862 thanks for the comment. I tried 45degrre and 90degree v-bits and had mixed results. Someone else in the comments recommended a 0.5mm flat end mill. This consistently gives me better results than any of the v-bits and much faster.

@mcbriers2862 2 года назад

@@AliKhalil thanks. End mills ordered :D What kind of depth & speed do you run them at?

@waltperko8389 2 года назад

IF I knew how to generate the height map, I wouldn't need this video!

@oguzkaganyagloglu103 2 года назад

What are the speed values for the milling process with V-BIT 30° 0.2

@MrByemi 10 месяцев назад

Hi. Can you please share the entire CNC project, with improvements HW, SW and MD ? I like how your PCB came out

@JB-20 2 года назад

Thanks for uploading. Hope you have a tutorial about leveling.

@AliKhalil 2 года назад

Yes, soon

@StoneTL Год назад

What's the widths of the tracks do you have? I tried SMD milling, either I do something wrong or it's not supposed to do it. But I couldn't do the milling with 0.254 or 0.5mm. Even 1mm went bad for me. - Also I've recommended to use 10*0.1mm for smd, is it really good ?

@nmidu Год назад

Really nice jobbro. Thanks for share it! Do you you know if u can make 2 pcbs in one gerber files? I cant mix them with any software( i try flatcam) .Sorry for my english, greetings from argentina!

@LeonardoPelandaJarek Месяц назад

To make Heightmap you use the cable in GND and A5 (Board Pin) ? Do you know some reference in internet that show this ?

@Ale-bj7nd Год назад

Do you still use more passes to do the cutout? I have problems keeping the board still with one single pass.

@timgraber215 20 дней назад

If you don't clamp it on all four sides, you should use double sided carpet tape to keep the board down.

@liauomika3832 2 года назад

Could CNC-3018 build-in software support to other PCB files , so that you can do the same work.

@AliKhalil 2 года назад

I'm not aware of any software built by a vendor selling 3018s that can do the job.

@jakobgammelgaard4853 Год назад

What software is used?

@orienbaris 2 месяца назад

Hi. What do you think is the best pcb desing software?

@mohamedrasheed201 2 года назад

please what is the laser power that can do this Etching and can i use 500MW laser

@AliKhalil 2 года назад

I have a 7W laser being used at 30% power, so ~2100mW. You'll have to just test using the 500mW laser by reducing the feed rate.

@Bianchi77 2 года назад

Nice video, keep it up, thank you :)

@simonballon409 2 года назад

Very great production lines. Any needs on conformal High Power High Voltage on UV Curing Coating Powers?

@AliKhalil 2 года назад

I haven't figured out a good way to get UV resin coating done. All methods I've tried have failed. This is why I don't have that covered in my video.

@user-mo8mi5ws3j 2 года назад

execuse me , what is the name of software that used to perform autoleveling for the pcb , and also , what is the name of used board for cnc . I have used candle 1.7 and cnc shield with arduino and grbl 1.1 but the process of height map always failed !!! can you help me ?

@jeremymakar5427 2 года назад

I am also interested in knowing this information as well

@user-mo8mi5ws3j 2 года назад

@@jeremymakar5427 I have found the solution for the problem of height map . I used candle 1.2.15b-64 bit and grbl 1.1 h .

@JB-20 2 года назад

@@user-mo8mi5ws3j Hi, is it possible to share your solution about the height map, a video please?

@cleisonarmandomanriqueagui9176 Год назад

Hi , I am recently entering to study electornics engineering , In minute 3:47 why there are like incomplete copper holes ?

@nalinux Год назад

It's for the ground. So they can be soldered without needing too much heat.

@ludokustermans 29 дней назад

Hi, I wonder why using 4 passes, for a width of 0.2 mm to mill with a 0.2 mm V shape 30 deg...1 pass should be enough ?

@timgraber215 20 дней назад

Usually one pass is too narrow. When milling or laser etching a board, the process generates very small bits of copper that create shorts. 4 passes gives a large enough margin between the trace and the adjacent copper to eliminate shorts.

@arieshausdorff3396 Год назад

Hmm.. With which tool do I do the heightmap thing? From 3D printers I know that bed levelling makes a lot of sense, but neither the hardware gcode sender nor UGS nor Repetier host knows anything about creating a height map. And in Candle I saw nothing obvious that would translate to a height map.

@Ale-bj7nd Год назад

I think that you need a plugin or a special version of candle for the height map. It's not included in stock.

@nalinux Год назад

@@Ale-bj7nd there's a Height Map even on Candle 1.1.9

@Ale-bj7nd Год назад

@@nalinux yep. Apparently it's stock

@miguelvivanco9524 Год назад

how do you fix the pcb on the bed

@c1videoprod Год назад

Try using double-sided carpet tape.

@naingaunglwin833 2 года назад

motor's RPM and Watt?

@AliKhalil 2 года назад

"Spindle: 775 spindle motor (12-36V) 24V:10000r / min" The power supply is 24V, so it's running at 10K RPM, but I do not know the wattage. I purchased this exact machine from Amazon: www.amazon.com/MYSWEETY-3018-PRO-Milling-Engraving-Extension/dp/B085NQH996

@brotherirk 2 года назад

почему дорожки не залужены? в дальнейшем это приведет к их окислению и уменьшению слоя, что негативно скажется на работе схемы и токопроводимости ее участков

@brotherirk 2 года назад

а так, понравилось)

@quisait6959 Год назад

bien l'autosatisfaction.quelques explications de procédures auraient servies pour les non initiés. comme par exemple l'impression par laser de la couche des emplacements de composants.

@mortwilliams7371 Год назад

nice job with the milling, but that soldering....:-(

@bencordell1965 Год назад

4 passes

@ChitaHD 2 года назад

It looks like this CNC may do it at least 4x faster. You’re just too overcareful with settings.

@larsord9139 2 года назад

Very pretty but sure doesn't help when getting started with CNC pcb making

@AliKhalil 2 года назад

Yes, you are correct. I didn't make the video as a guide/tutorial. I really struggled with figuring out how to get a PCB made on the CNC and I understand where you're coming from. This video was made mostly as a proof-of-concept for myself in getting the flow down as well as figuring out how to use my camera and other equipment set up to be able to make these videos. I have gotten multiple feedback that the video should've had more of the entire process. I have to redesign this PCB layout and I will try to capture the full process starting from KiCad.