Summary of Tool source and part numbers 1a.
Making Excellent Printed Circuit Boards June 23, This article was originally written as a letter to some of my friends who wanted to know why my printed circuit boards turned out so well.
After I sent it, they suggested I turn it into an article. So, here it is: There are only a few secrets to making really good printed circuit boards. The first is to get everything completely clean. The second is to use a good etch resist.
Get the ones with black ink as they seem to work best. Get two fine point which really has a bullet-shaped medium point in my opinionand one ultra-fine. The ultra-fine has a steel barrel-tip with a very fine marker poking out the end. Next, clean the board very well. I found that automotive rubbing compound works really well for that.
From this point on, only handle the board by its edges. The next step is to drill the holes. If any of the holes need to be larger, enlarge them now eg. A clean, drilled, and deburred copper-clad board. Take a loop of masking tape and tape the board, copper side up, to a piece of cardboard eg.
Now you have a handy means of handling the board and holding it still while you draw the traces on it. Next, draw all the pads. For this I use the larger of the two markers.
I generally start by putting the tip of the marker in the hole and turning. This draws a nice circular pad around the hole.
After you gain some skill in this, you can run the tip of the marker around the rim of the hole and make a larger pad that way.
The rim of the hole will bite into the marker and keep it from sliding all over the board. With the etch-resist applied and dry, the board is ready for etching. Any power or ground traces that are next to the edge of the board should be extended right to the edge of the board especially if they will be handling motor currents.
Now, draw the remaining traces that do go through tight spots. Use the super-fine point marker for this. Inspect the board carefully. If there are any areas where the ink looks thin, go over them.
Dabbing the ink on with the marker tip works well. Let the board dry for at least 2 hours. Do not put the board in the microwave!! Open it occassionally to relieve the pressure. Place the board in the tray, copper side up.
Rock the tray constantly while the board etches.
It will take about 20 minutes. Finished board, ready to have components soldered in place. When done, rinse the board under running water for at least 2 minutes to get all the etchant off.
Then, using tweezers, dip the board in the lacquer thinner and swish it around. Take it out, wipe it off. Do this a few more times to get all the etch resist off. The copper will have microscopic fissures in it and you want to get all the ink out of these or soldering will be a pain.Keep your backyard, patio or picnic pest free with this Cutter Backyard Bug Control ready-to-spray concentrate.
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I used my old Provo Craft 12" Portable Trimmer for over 10 years, but can no longer purchase replacement cutting blades for them. When I saw the Cricut 12" Portable Trimmer at a great price, I decided to give it a try. I LOVE IT. Cuts well with crisp, clean edges/5(). Cricut Explore Air precisely cuts a wide variety of materials, from paper to iron-on to adhesive vinyl, even thick materials like leather and felt! This machine features built-in Bluetooth technology for wireless cutting, a dual carriage to cut and write in just one step and free cloud-based design software for computer and iPad. 2a. Tools Needed: Good Lighting and Magnification. Good circuit board repair work requires good light! Good light is cheap. If there isn't good light in the workshop, go to the hardware store and buy some 4 foot dual florescent lamp fixtures (about $10).
It kills mosquitoes, ants and more Price: $ Best selection of craft vinyls and blanks for Cricut, Silhouette or any craft vinyl cutter Screen Print Transfers Sublimation.
Dec 08, · I wish to have a mini circular saw to cut my pcb, but sometimes it's enough to have a modified cutter and a proper frame to drive cutter into a straight line.
I've designed one in this instructable, it's very cheap and it cames from ordinary objects.
Because you can. With the Cricut Design Space software system, send your projects wirelessly to the Cricut Explore Air machine for cutting.
There are so many ways you can create with Cricut Explore Air. Design with the 50,+ images, projects, and fonts in the Cricut Image Library, or /5. Free Shipping on your entire online order when you buy $35 or more in Cricut Accessories.
Cricut Explore Air precisely cuts a wide variety of materials, from paper to iron-on to adhesive vinyl, even thick materials like leather and felt! This machine features built-in Bluetooth technology for wireless cutting, a dual carriage to cut and write in just one step and free cloud-based design software for computer and iPad.