By Omair Tariq, Systems and Test Engineer Purpose The purpose of this blog post is to determine the tolerance of our 3-D Bioprinter. Our level 1 requirement was that the printed object’s measurement should be within 0.7 mm of the value specified in the 3-D model of the object. Equipment Needed Equipment Quantity 3-D […]
By Omair Tariq, Systems and Test Engineer Scope There are two issues to ensure correct flow of the mixture: Volume and Temperature Control of extrusion apparatus. The extrusion apparatus consists of a syringe and a needle attached to the base of the syringe. Temperature control was addressed by attaching a heater to the body of […]
By Omair Tariq, Systems and Test Engineer Fig. 1 System Block Diagram of the 3-D BioPrinter Following is a system engineering perspective of the 3-D BioPrinter 1.) A 3-D Model is sent as instructions known as G-Code from the Computer to the Primary Arduino (Arduino MEGA) that are then translated by the Arduino, using […]
By Maxwell Nguyen, Project Manager During the field presentation of the rover, spiderbot, and hexapod, all three groups were able to successfully launch their projects. However, all three groups encountered a few similar problems that prevented the projects from completing the mission objective. Level 1 Requirements: The height requirement of the rover was completed and […]
By Mustafa Alkhulaitit – Project Manager After 8 weeks of hard work, we have the 3D printer at 90% completion. During the last week, there were many complications and issues that prevented us from completing the printer to a 100%. The main reason for the delays was the printed parts provided by our mentor Mike […]
By Mustafa Alkhulaitit – Project Manager One of our main goals is to be able to controlled Sasha remotely. After many researches on this topic and trying to know if such an idea is even possible or not, we found our answer. There is a very neat feature that allows 3D printer users to remotely […]
By Jessica Salazar – 3D Manufacturing Components: -Thermal Cartridge -Thermistor -M3 grub screw -Heat block -Heatsink -Heat-Break -Modified Fan Mount -Tube coupler Step1: The Bowden tube coupler screws directly into the top of the heatsink. Step2: Screw the coupler into the heatsink, then push the tubing into and through the couple until it stops […]
By Jessica Salazar – 3D Manufacturing Aluminum expands when heat is applied; this was not considered and remained a problem with the previous design of the heat bed. The heat bed was screwed down with no room for expansion this made imprecise prints and was not a smooth surface. The aluminum would concave […]
By Greg Rios – 3D Modeling In order to implement auto leveling to the new Sasha, one must first come up with a design that will be easily attached to the current frame or printed parts. Not having to replace parts will help with reduce material being used and be able to finish in a […]
By Greg Rios – 3D Modeling What you will need: TowerPro SG90 9G Mini Servo with Accessories Omron SS-5 Microswitch (not shown in picture) Servos mount (3D printed) Servo arm (3d printed) Male pins Assembly: Servos mount needs to be sanded down in order for the servo to fit properly. The slot that was […]