1_rp_instructions.20090812.4a838182ae8253.27726766 - ME350...

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ME350 - Rapid Prototyping Lab Instructions 1 Objectives The purposes of this lab are to: (1) Obtain a solid understand of Rapid Prototyping, including its applications, advantages and limitations (2) Understand the differences between at least two Rapid Prototyping techniques (3) Become proficient at performing preprocessing to produce an optimal Rapid Prototyping layout by considering desired part functionality, support structures, part placement, layering direction/orientation, and number of layers, all to minimize building time while maximizing part quality. 2 Lab Structure Choose to make your part using FDM, SLA or Objet Eden 350 Open the .stl file with Insight 4.4 and perform preprocessing (orient part, slice part into layer, generate support structures, generate tool paths, etc.) and take necessary screenshots Open the .stl file with 3D Lightyear 1.4 and perform preprocessing (verify part, position and orient part, generate support structures, etc.) and take necessary screenshots Open the .stl file with Objet Studio and perform preprocessing (orient part and create objet tray file necessary to build the part on the Eden 350) and take necessary screenshots FDM Objet Eden 350 SLA
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ME350 - Rapid Prototyping Lab Instructions 3 Preprocessing the Part The remaining sections of this handout guide you through the process of taking the CAD model and preparing it to be used for Rapid Prototyping. First, you must generate an .stl file, and then you must use either Insight 4.4 (for those that chose FDM) or 3D Lightyear (for those that chose SLA) to preprocess the part and generate the output files necessary to build the part. In the preprocessing step, you will try two different orientations for your parts; a ‘better’ orientation and a ‘worse’ orientation. It is up to your judgment to decide which orientation is a good orientation, and which orientation is a bad orientation. In order to decide, you should consider 1) the number of layers, 2) the amount of support structures, and 3) the staircase effect. Below is the necessary information for performing the preprocessing in each of the programs for FDM, SLA and Eden 350. Please note that this part of the lab is for you to understand the effect of orientation on the outcome in Rapid Prototyping and visualizing it on the software. You have to take screenshots for each orientation since you will need to use them in your lab reports. 3.1 Insight 4.4 (1227 MEL) - [Preprocessing for FDM] (1) Retrieve the stl file you generated, and rename it to <your name>.stl . (2) Open Insight ( Start->Programs->Stratasys->InsightV44->Insight) . You should see a cube workspace on the screen. This is a 3D workspace in which you can put the objects you wish to make. Anything inside this cube will be “printed” by the Rapid Prototyping machine. This is similar to printing a word document where anything you put inside the 2D page is printed. (3)
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This note was uploaded on 01/15/2010 for the course ME 350 taught by Professor Staff during the Spring '08 term at University of Illinois, Urbana Champaign.

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1_rp_instructions.20090812.4a838182ae8253.27726766 - ME350...

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