pcbetching
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pcbetching [2022-02-12 17:54] – jtdburton | pcbetching [2022-07-22 22:12] (current) – [Flux] MirZa | ||
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Open up FlatCam and use File - Open Gerber to load your edge cuts and File - Open Excellon to load your drill plot. | Open up FlatCam and use File - Open Gerber to load your edge cuts and File - Open Excellon to load your drill plot. | ||
+ | |||
+ | //Tip: at each stage of the FlatCam process below you can save your settings for next time by going to Options - Transfer options - Object to Application.// | ||
It's a good idea to go into the " | It's a good idea to go into the " | ||
- | Double-click the drill plot in the file list. You can skip over all the CNC settings here, just enter your tool size under "Mill Holes" (a 0.7mm bit is usually good) and click " | + | Double-click the drill plot in the layer list. You can skip over all the CNC settings here, just enter your tool size under "Mill Holes" (a 0.8mm bit is usually good) and click " |
- | + | ||
- | Now go back to the " | + | |
- | + | ||
- | Enter your CNC settings here. Typical values will be around -1.6mm cut Z (this is the thickness of your board), 1mm travel Z, 200mm/min feed rate, and 10,000 RPM spindle speed. Click " | + | |
- | Back in the " | + | Now go back to the " |
- | The procedure for the edge cuts is similar. Double-click the .gbr layer in the Project tab, enter your tool size under "Board cutout" | + | Back in the "Project" |
- | Tip: at each stage of the FlatCam process you can save your settings for next time by going to Options | + | Double-click |
From here, pop the SD card in the CNC laptop, load it into LinuxCNC, and proceed with the usual CNC process. | From here, pop the SD card in the CNC laptop, load it into LinuxCNC, and proceed with the usual CNC process. | ||
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Where a trace has been broken, apply a solder bridge to reconnect it. | Where a trace has been broken, apply a solder bridge to reconnect it. | ||
- | ===== Flux ===== | + | ===== Protective coating |
- | Give your new board a spray with the can of flux. This will both prevent the copper traces from oxidising and make soldering to the board easier. Applies just like spraypaint - use back-and-forth motions from 20-30cm away. | + | Bare copper traces oxidise very quickly without any protection. |
+ | Give your new board a spray with the can of clear varnish after soldering | ||
+ | Mask off any buttons or mechanical components with masking tape so they do not get stuck. | ||
+ | |||
+ | Another option is to use tinning solution before soldering. | ||
- | Leave to dry for a couple of hours. | + | Congratulations, |
pcbetching.1644688482.txt.gz · Last modified: 2022-02-12 17:54 by jtdburton