LCR-T4 Mega328 Transistor Tester Tilt Stand

thingiverse

This is a low-profile tilting stand designed specifically for the affordable transistor tester known as LCR-T4, M-Tester, Mega328, and possibly some other names. It's engineered to work seamlessly with the most popular acrylic cases for this particular model tester. This accessory attaches using the mounting hardware that secures the PCB to the bottom of the acrylic case, making it an add-on piece rather than a replacement part. Despite differences in two widely used acrylic case styles - whether it's an 8-hole or six-hole model - my stand remains compatible because it uses standard through-hole screws for the PCB instead of the screws holding the case together. My case happens to be the older style with eight screws. A critical requirement for this stand to work effectively with a M-Tester case is that it has a 30mm gap between the bottom edge of the PCB and the case. As long as your case leaves space for a 9-volt battery beneath the bottom edge of the PCB, and the PCB attaches to the back piece of acrylic using four screws, this stand should work just fine. Take a closer look at the attached photos to ensure that your tester has the same form factor and that your case is similar enough to work with before printing. Don't worry about the banana jacks in the photos - they're not part of the original tester or case. I also changed my 9-volt battery holder from a clip-type connector, but I believe most testers are now sold with both configurations, which doesn't affect this stand. To put it simply, if your board looks like mine and your case is roughly the same, there's no reason this stand shouldn't work for you. This design shares similarities with my GM328 tester stand design, but differs in that it doesn't replace the entire back of the case. I made the backing plate for the stand this way because the length of the mounting hardware for the board in my case supported it, and to greatly reduce printing times. The backing for the stand took about an hour to print, while the stand itself took around half an hour or so. As with the GM328 and similar testers, I recommend checking Thingiverse for complete case designs if you have a bare tester without a case. There are some really nice fully printable case designs available here. My stand is an improvement on an existing case purchase that I had bought long before I got my 3D printer. I hope someone finds this useful. You might have noticed that I keep reusing the stand I made for the crummy Velleman DVM850BL meter. I've repurposed it here, on my GM328 Tester case mod, and even for the free Harbor Freight multimeter. That's not a bad run... A single design that has been used for four completely independent devices.