How To Make a PCB Solder Mask with the Bantam Tools PCB Milling Machine

[@michaelg.bezborotko210]

Where to buy this tool at 0:35 ?

[@williamson42]

Can you post a link to the solder mask that you're using?

[@dattasaurabh82]

Also in this video some rectangular trace pads have red marked areas, saying it needs smaller tools. How the engraving was then managed without resolving those?

[@bantamtools]

The tiny red marks at 2:13 are indicating that the tool isn't able to mill those 90º corners. This isn't due to tool size, but rather it's geometry. So rather than be right angles, they're going to be slightly rounded. Because this won't impact the design of our board we ignored the warning in our software.

[@Максим-р6у1щ]

Где купить такую подпружиненную головку?

[@thuctranminh2170]

Can we apply the solder mask first then mill and holes after. I wonder??

[@Ryytikki]

You'd need to mill the traces first as ideally only the pads/through-holes will be exposed. If you milled after, you'd end up with all the trace lines exposed too

[@CarlDRocco]

Can we laser the mask off instead of using a bit?

[@PaoloConteDeveloper]

I tried that and it kinda works but, because of heat from the laser, small pads or traces may break or detach from the substrate

[@dattasaurabh82]

The some SMD traces(for e.g.: 2 Pin PH-2.5 JST), the svg generated, shows it needs smaller tool than 0.005" bit. How to mitigate that?

[@bantamtools]

Are you referring to the red traces at 1:09? If so, you're right, this is indicating we do need smaller tooling. But also notice how in that frame only the 1/32" flat end mill selected. If you also have the 0.005" PCB engraving bit selected those warning signs will disappear :)

[@RichardVowles]

You don't indicate where to get the spring loaded bit.

[@Sh4dowHunter42]

I concur, where are these bits?

[@rjpeterson1]

I would like to purchase the bit also.

[@bantamtools]

We got the floating engraving tool from CNC-Aid and used our 0.005" PCB Engraving tool for this job.

[@rjpeterson1]

Thank you!

[@RichardVowles]

@@rjpeterson1 you also need a new er11 collet that can take 1/4" bits as the CNC aid holder is that size and the one on the bantam is Max 1/8".

[@ameendhe]

can you please post instruction if you are using Altium. Thank you.

[@bantamtools]

Hi there! For this project, we used EAGLE to design the board and then dropped the .brd file into our Bantam Tools Desktop Milling Machine Software. If you'd like to make your own solder mask using our Desktop PCB Milling Machine, check out this how-to: www.bantamtools.com/blog/make-your-own-pcb-solder-mask-with-a-desktop-cnc

[@bantamtools]

If you're looking to learn more about Altium's software specifically we recommend checking out their resource page: resources.altium.com/

[@GregoryLynnWood]

Come on guys. Bit's not on your website. What gives?

[@bantamtools]

You can find the 0.005" PCB Engraving Tool that we used on our site here: www.bantamtools.com/end-mills-and-bits-collection/pcb-engraving-bits

[@bantamtools]

We got the floating engraving tool from CNC-Aid :)