Archive for the "hacks" Category

Installing English Firmware on a FAST FWR171

I recently learned that the FAST FWR171-3G is a lower cost clone of the TP-Link TL-WR703N, the only difference being the case. While browsing AliExpress, I found what I thought was a great deal… the FAST FWR171 for only $16. After waiting over a month to receive it, I noticed that it doesn’t have a USB port. […]

How to Repair a Panasonic Massage Chair, Part 3

Unfortunately, my rubber hose hack from Part 2 worked only for a few weeks. The belt again stretched, and became loose: One thing you can also see in the photo above is that I’ve slid the motor as far to the left as the adjusters allow (the slotted holes for the two brass screws). I couldn’t […]

Quickie Hack: Turn Your Bicycle Into A Party Machine

I was looking for a way to play tunes while biking the other day, and was too lazy to get out the CAD program and design something to print on my RepRap. Here’s a dirt cheap & quick hack to get some decent quality sound while riding your bike. All you need is 4 zip ties: […]

OpenWrt: Cross-compiling libmicrohttpd for TL-WR703N

Recently, I’ve been developing embedded webapps using node.js. Unfortunately, node.js is a bit bloated for resource-constrained platforms, such as the TL-WR703N running OpenWrt. Not only is it too large to fit into flash memory, requiring an external USB drive to run EXTROOT, but I’ve even encountered circumstances where I’ve been running out of RAM. Thus, […]

TL-WR703N: Attaching USB Serial Adapters – FTDI/CP2102/PL2303/CH340G

Although the TL-WR703N has a built in UART, as I have shown in my previous article, it’s rather difficult to access, and is useful as a serial console in OpenWrt. For the support of your own apps, it is far more convenient to simply plug in a cheap USB to serial adapter — this can be […]

How to Repair a Panasonic Massage Chair, Part 2

In my article, How to Repair a Panasonic Massage Chair, I described how I fixed my Panasonic EP1004 massage chair. The chair worked for a year or so, and then stopped working again. The symptoms this time were a bit different from when the clutches got stuck. Instead of running for a while, and then […]

gCode Visualization

I was working on a project today, which had some serious overhangs. I added support material manually, but needed to make sure that slic3r was traversing a usable path through my supports. Usually, I use Repetier Host‘s excellent built-in gCode visualizer, but it only displays a layer at a time, and I needed to see […]

Kossel-Linco Delta Printer: Part 1 – Magnetic Effector and Arms + Vertical Carriage

I’m currently designing my first delta 3D printer. It’s based on Johann Rochell’s Kossel Mini, but I’ve modified or redesigned just about every part, except for the bottom vertices. The first design decision I made was to get rid of the expensive linear rails and sloppy Traxx joints. I like the magnetic ball joint concept, […]

RepRap: Fish Pump Hot End Tip Cooling

I have always had trouble printing small parts and overhangs, because I was too lazy to add cooling to my hot end tip. I sometimes used to just blow a USB fan at the printer, but this has two bad effects: 1) the cooling isn’t localized enough, so it doesn’t work very well, and 2) […]

RepRap: Printrboard Surgery

After a hiatus of a couple of years, I’m finally starting to get back into 3D printing. One of my Printrboards got messed up when some wires on my hot end shorted. The hot end temperature was no longer reading correctly. Since my other Printrboards all work correctly, I knew that the problem was not […]