ADDITIVE – BASIC II

Requirements

In order to attend the Basic Additive II Training, students must provide evidence that they understand the knowledge taught in Basic Additive I Training regarding design for additive manufacturing (DfAM) and can work an example on their own time. The SolidWorks part file is located to the right, as well as instructions for the redesign below, including restrictions, guidelines, and goals. In order to attend the training, students must bring both the redesigned printed part and a picture of their sliced part from PrusaSlicer, so we can verify that they meet the specific metrics.

Download the SolidWorks Part

RedesignThisPart!

Download the Fusion 360 and STEP File

BasicAdditive2Part 1 Fusion 360 and STEP

Step 1: Understand the Requirements to Pass!

In order to pass, the student must present the following:

  1. The physical part printed successfully
    1. Each of the holes will be tested by a printed rod to its original diameter and depth, so whatever changes the student makes to the shape of the holes, the original rod should be able to fit inside of it well. It should connected as one whole piece.
    2. The bold text at the top should have the student’s name on it, if their name is too lengthy then they can use their psu ID (abc1234)
  2. The Prusa Slicer picture
    1. No support material needed for the revised model
    2. Used Filament (g) should be less than 18 grams
    3. Estimated Printing time – normal mode should be equal to or less than 1 hour and 5 mins

Step 2: Download and Edit File

In order to attend the Basic II Additive Training, you must redesign the part seen below. It contains several holes in each direction causing each orientation to have trouble with quality and need for support when printing. The bold text at the top of the part should be revised by you, the student, to contain their first name, or psu ID.

The features highlighted in red are considered “essential surfaces” and cannot be modified in any way; for instance, the two red holes cannot be changed in diameter, depth, or location, so you have to revise around them. As well as these red features, the location of the center of the two holes in the middle body (below the red rectangle) must remain where they are, however the holes themselves can be modified. The whole print should remain as one connected piece. 

Step 3: Getting the Settings Right

Because the red rectangle part has overhangs, support material is necessary to print certain features, causing a decrease in quality and increase in print time. Sliced in PrusaSlicer with the settings found below, the total material used is 23.81g for a 1 hour & 15-minute print time. To keep the metrics aimed towards redesigning the part, the following features must remain the same in PrusaSlicer and shown in the picture brought to the training:

Print Settings: 0.20mm SPEED

Filament: Generic PLA

Printer: Original Prusa MK3.5 & MK3.5S 0.4 nozzle

Infill: 15% <– Must be default “grid” fill pattern