Effective Bardware Based Stepper Motor ControlIn my quest to derive a robot control scheme from scratch, I've been working to figure out how to control a stepper motor. Stepper motors are great because they're cheap, relatively simple to control,...
Through Hole Technology (THT) versionThis is how I built the Through Hole Technology version Make a double-sided fibre glass PCB (see front- and back- PDF files below). There are several ways to do this. The way I do it is to print the front and back...
Use epoxy to glue the tower to the potentiometer casing. If using a wind sensor solder long wires to the V+, GND and OUT pins of the wind sensor. Seat it in the gap it magically fits perfectly into as shown below. Tidy your cables! I pleated mine and...
After you find out the side that is causing the problem, wrap the offending wires with the foil. This creates a makeshift shield as long as the foil is grounded to the chassis
If you want to keep the amp original, and not replace wire, you can leave this foil in place. This is fine as long as the amp isn't really moved. However, if you move the amp around you will want to replace the foil with something a lot better....
The problem lies in the lack of response, over time the little pads inside become corroded and unresponsive. Eventually, no amount of cleaning and disassembling actually fixes this and you end up replacing either the entire controller or purchasing one...
PVC Cooling Jacket for CO2 Laser0PVC Cooling Jacket for CO2 LaserThe adventure begins while I was walking around the local home depot looking at ideas on how to build the laser. I was sort of making it up as I went. Mapping things out in my mind. I wanted...
Mirror Mounts0Mirror Mounts… where to begin, in many ways… these are the make or break it for this project. These have some very high tolerances and requirments. Especially considering I am doing this all by hand, after all, the goal of this project...
Assembling the tube1And now for assembling the laser tube itself. Things needed for this will be a bit of JB weld, a long thin dowl that fits inside your mirror mounts. This will help align them, much better than eyeing it. You will also need some 3/8th...
BROKEN!!!!! well, not really :>While I was doing the adjustments to it to make sure things were proper before I went further, I realised a very important fact. The Mirror mountings were out of alignment by .5mm ………..…….Ok, this might not sound like much,...
Step 1 - Assemble the fittingsLet's get the easy part out of the way first. For this step, you'll need your bag of fittings, the valves, the pressure gauge, a roll of teflon tape, and a crescent wrench.Assembling brass fittings is pretty easy, but...
Step 2: Prepare the pressure cookerNow for the fun part. In this step, you'll be drilling a hole in your nice shiny new pressure cooker. I know, it's tough, but it's for a good cause.You're going to need: A metalworking drill pressThe pressure cookerA...
Step 3: Install the bulkhead fittingThis step is very easy, but it's also your biggest potential leak. Don't worry about that too much now; leak hunting is great sport in the world of vacuum chambers, and there's plenty of time for it later. Find your...
Step 4: Copper tubing and compression fittings It's finally time to put the pieces together.Cut two lengths of copper tubing. One length connects the fittings assembly to the pressure cooker. The other, longer, length connects the fittings to the vacuum...
Step 5: Final assembly Now is the time for that pressure cooker lid that you set aside earlier.The gasket that's in the lid of the Miro pressure cooker is very easy to remove. Just give it a gentle tug and work your way around the lid. It should come...