-
Wood Stove Heat-Recovery System
This in-process project is to create a flue-gas to hot water waste heat recovery system for our wood stove. The heat exchanger used is a salvaged refrigeration evaporator, which will be ‘piggybacked’ off of a solar hot water system, using servo-operated changeover valves.
-
Vex Robotics Custom Turned Leadscrews
Custom turned leadscrews for the Vex Robotics Competition, used to actuate a linear gripper.
-
Twisted-Pair Winding Machine V2
This in-progress project is an upgrade of the previous twisted-pair winding machine designed to wind cable for use in Oscilloscope isolation transformers. The new machine uses two stepper motors to achieve infinitely variable options for wire pitch, a significant improvement of the limited eight gear ratios of the previous design. The use of steppers also…
-
Twisted-Pair Cable Winding Machine
This machine continuously winds and cuts twisted pair for use in high-voltage (20kV breakdown) Oscilloscope isolation transformers. Cut length is flexible, and winding pitch can be selected from eight settings, chosen from a set of four gear presets, and two speed settings on the rotating gear follower. The cutting shears are connected to the drive…
-
Twisted Pair Cable Winding Machine V2.2
This project is an upgrade and redesign of the previous twisted-pair winding machine designed to wind cable for use in Oscilloscope isolation transformers (see: Twisted-Pair Cable Winding Machine). User Manual and Documentation (Draft) Background At a previous workplace, we specialized in the production of high-voltage isolated oscilloscopes. Each scope features four independent 2kV isolated input…
-
Three Wheeled Vehicle Design Project
This project was undertaken in a team of four for Mecheng 236: Design and Manufacture 2, and received a grade of A+. The goal of this project was to produce a preliminary design for a tilting three-wheeled LE-1 class vehicle, creating engineering drawings and a BOM for manufacture, and presenting the design to stakeholders.
-
Thermal Analysis of an Air-Cooled NEMA23 Stepper Motor
Edit 07/09/2024: The values calculated in this post seem a little suspect. If anyone with thermo experience can spot any errors that would be greatly appreciated. This analysis was conducted as part of my PrintNC-Derivative CNC Router project. The machine uses four NEMA23 open-loop stepper motors for the X,Y, and Z axes, with DM542T and…
-
Simple Plywood Motorcycle Shed Design
This post covers the design of a simple 2×2.4m outdoor shed, made from 45x45mm lumber and 9mm plywood. The frame consumes a minimum of 57.8m of lumber, though more is needed if additional members not in the drawings (girts etc.) are included, as was done here. The 45×45 lumber was ripped from 90×45 which saves…
-
Scooter Battery Bracket
Set of 3D printed brackets designed to allow reused Lime Escooter batteries to be attached to the 50mm stem of a foldable scooter.
-
Punch Press Design
Basic design of a punch press using commonly available steel SHS members.
-
PrintNC Derivative CNC Router/Gantry Mill
During the summer of 2023, I had the opportunity to work at a specialized CNC machining firm, where we produced gas handling solutions for the natural gas industry, with rated pressures ranging from 400, to 2000 bar in the new hydrogen products. Amongst their toy shop were a number of high end Okuma and DMG…
-
Parametric Maypole Braider
This in-progress project is to create a working Maypole Braider to over-braid cables for EMF shielding and other applications. The process of over-braiding allows a flexible sheath to be applied tightly around a non-uniform geometry, which contrasts ready-made braids which must be oversized or stretched to meet geometry requirements.The assembly and parts were designed in…