I went to Menards over the weekend, and picked up some polyester rope, which has almost no stretching issues. I was previously using 550 paracord, as it was all I had on hand. Additionally, I now have 3 turns of rope on each pulley, so there is plenty...
I implemented a sampler mode for the Noise Nugget. It plays a single audio clip at different speeds to give the illusion of different notes.For the moment the audio clip is stored in the main flash memory, with the code. There's not a lot of space available...
The PCBs have arrived. I'm not impressed with the quality but hopefully they'll work. Lesson learned No.1: check the minimum silkscreen specifics of the fab house. I did at some point but, changes after changes, I ended up with characters smaller than...
STEP1: Communication, sprechen sie beep boop? So a great place to start with almost any reverse engineering project is finding the UARTS. One difference with the L02 PCB vs the L01 is the lack of silk screen information besides some model info...
The 3D Slicer is perfect to show the output images for the doctor´s diagnostic. However, there is a couple of things: 1) 3D slicer works with 2D images. It can use plenty of file formats, but again, 2D images.2) CT systems does not produce...
Well, I sprinted through the week and got the shredder working! Found the master link I needed to close the chain.split the chain to the length I needed, and hooked it up to the sprockets.I'm very pleased that it fits nicely over a bucket. I don't have...
OverviewA 3D printed strain wave gear, using a HTD 300-5M-20 and 608 bearings. The belt has 60 teeth, for 30 revolutions of stepper the outer gear rotates once, resulting in a -30:1 gear ratio. Bill of materials Material Quantity Dimensions HTD belt...
Typical Cycloidal Transmissions consist of four main sections. Input shaft and eccentric bearingCycloidal Gear(s)ring pins and housingOutput rollers and shaft The way that the sections are arranged are with the input shaft on one side and the output...
I transfered the basic idea into one single 3D-printable part and -surprise, surprise - it works! This construction was my first time using FreeCAD for designing a non-trival part. Information about the new part/body model in version 0.17 isn't as easy...
I managed to increase my machine's bed size from 35x35x35mm to 40x40x40mm. It may seem small but the 10mm increase in dimension is huge for me. Every millimeter helps! It all started when I learned that there are stepper motor sliders similar to the...
Everything arrived, including the 8' long tube stuffed with bubble wrap and CFRP square tubing. Exciting! Two CAD model changes to make prior to getting out the carbide-tipped jigsaw and Space Glue:1) I'm going to increase the width of the pitch ring...
Low Signal Strength?I assembled the two transistor reflex circuit:I went with this design as I have built it before and it works.I did model this circuit in the simulator and the Ge diode can be swapped with a silicon (the diode bias current is about...
The Aluminum has been cut and the parts have been printed for one printer.You will need about 7m of stock to make this.Everything marked out for the first cuts. Make sure to mark your waste end to account for the blade kerf."You need a metal cutting...
Note 1: I capitalize "X-axis", "Z-height" and the like for legibility when scanning/skimming; pedants can hate me later.Note 2: This is where idealistic, that is mimal change for best outcome, modifications are. For measurements and construction details...
The first iteration of this project didn't use planetary gears. Instead it used a combination of 2 : 1 and 5 : 1 straight gears on three independent shafts, plus a bevel gear to mount the stepper motor perpendicular to the axis (axes) of rotation....