I started this project about 8 months ago. The first thing I tried was to just slap an arduino on top of a Raspberry Pi and attach a motor driver board. In the photo with the chassis you can see the Arduino-compatible (from Watterott) on top of the RasPi....
I'm finding myself spending a lot of time rearranging things as I move from a soldering project to an oscilloscope project and back.The latest change I made is to stack one table on top of the other and mount a 2 Foot long fluorescent light under the...
I got the PWM code to start working, at least when viewed in a logic analyzer. When I tried to put the top board on the bottom board and see if it works nothing comes out. The output pin is toggled, the PWMs are running but no output comes from the device.This...
Taking an inordinate time between glue-up and final product, I finally managed to get the finishing done. You might be able to tell in the photo below that my shoddy joinery is on display on pretty much every corner due to using the wrong tools and being...
Today I finally got some time off and was able top print some parts for mounting the microswitch for home position and for securing the pogopins. The sparkgap ended up being over 50mm on each lead. All that is left now is to figure out how to power it...
See it cycling through the address space:The bottom section multiplexes between 2 address sources: the address register and a manually-set address. The top section turns the selected address (blue lights) into a row/column selection for the memory (top...
A few weeks ago, I did a build for reDiscover Center that's a big pegboard for a modular marble run. The top of it is too high for the kids to reach normally, so we're creating some elements that will remain fixed up high with a couple mechanisms to...
A valid point was raised that it would be better to have the battery on top for production. When I created this design I wasn't really thinking about production at all but it is good practice. And in the off chance that this product does go into production...
Spent some extra time on the outer acrylic enclosure design - all the intake is on top, and the exhaust vents have been extensively restyled with a nice wave motif.Laser cut from 1/8" acrylic.Also added a fan shroud to prevent internal air recirculation...
I just find out the problem with the bottom case longer than the top case !It was not a openscad render error (as I thought naively at first) but I imported the 4 buttons version of the Adafruit case for the bottom (and not for the top) which is longer...
And i have a working system. You may have noticed i completely redid the project page. Well i kinda gave up on making it portable and made a table top version instead. Because of that i had to ditch color so it can only do black and white but that's...
We couldn't accept just "plain old square" shelves, so we decided to build a wall mounted open box with a rounded top.With the usual items; wood, screws, drill we added a 3d printed top.This made things more interesting and the structure begins to take...
pins pushed through and plastic sanded to conform to the remaining space next to the battery holder (you might need to melt the solder and push it inwards as hard as you can without hurting yourself), then soldered from the top. Not the best way to do...
I moved component into a new version of the 3d case, printed last week.I moved the USB charging circuit to top right (so you can play while charging) and added 2 more screws holding the bottom of the case and 1 on the top of the case.It works but there...
After experimenting with support structures, decided to use separate prints for top and bottom and glue together.Top row: experiments. Bottom row: final version. For the latter, the switch slots require no cleaning and look way more accurate."Gravity...