Week 2 Optional DaNi Lab Assignment W24

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University of California, Los Angeles *

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162D

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Aerospace Engineering

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Feb 20, 2024

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pdf

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Uploaded by ProfessorTarsier4030

MAE162D/E – UCLA R. S. Shaefer, Yenchi Chang 202 4 1 Week 2 In-Lab Assignment: SOLIDWORKS Assemblies For MAE 162D Winter ’ 2 4  Version 1.5: Updated by MACLAB (Jan 202 4 )  Version 1.4: Updated by Prof. Robert Shaefer (Dec 2021)  Version 1.3: Updated by Prof. Robert Shaefer (Dec 2020)  Version 1.2: Detailed and extended version by Dr. Matt Gerber (Jan 2017)  Version 1.0: Original concept by Dr. Stephen Price (2014-2015) In-Class Assignment (individual) : In this Lab, you will model 4 parts, 3 sub-sub-assemblies, and 3 sub-assemblies (due tomorrow). 1. Download the DaNI_Robot.zip file from BRUINLEARN (Week 2 Module) and unzip it. Inside this folder are two directories: DaNI_parts and DaNI_sub-assemblies . Within the sub- assemblies folder is a file called DaNI_reference.EASM . This file is in eDrawing 1 format and shows you what your final assembly should look like. Your goal (homework due next week) is to create this assembly. Many of the necessary parts and sub-assemblies are provided for you (files you extracted from the zip file), but there are several that are missing. These missing parts and sub-assemblies are what you will be creating today in class (individually). Note: The eDrawing file is large and your computers may struggle with it. Be patient. Before you begin, transfer the four parts you created in Lab-1 to your DaNI_parts folder. 2. First, create the four parts from the engineering drawings provided at the end of this document: i. Motor Spur Gear (40T) ii. Motor Mount iii. Motor Hub (Hub Axle) iv. U-Channel-288 (Hint: There is a similar part in the parts folder you can use to adapt.) Name each parts you create as Lastname_partname.SLDPRT and add them to the DaNI_parts folder, which came with the the DaNI_Robot.zip file. 3. Open the eDrawing “ DaNI_reference.EASM ” located in the unzipped DaNI_sub-assemblies folder o review parts, sub-assemblies, and sub-sub-assemblies of the DaNI robot. Figure 1 shows the eDrawing file, when opened. It has a “Components” icon in the far lower - right of the screen. Clicking the Components icon opens a feature tree where all the parts and sub-assemblies are listed. By selecting a sub- assembly and clicking the “Isolate” icon (bottom right), only that specific sub-assembly will display. Use this as reference for creating your specific sub-sub-assembly (and later your sub-assembly). 1 eDrawing is free software that lets you view and print eDrawing (eDRW, ePRT, eASM), native SolidWorks documents (sldprt, sldasm, slddrw) , DXF, and DWG format files. It came with your SOLIDWORKS installation package.

MAE162D/E – UCLA R. S. Shaefer, Yenchi Chang 202 4 2 Figure 1: Steps to isolate sub-assemblies in eDrawing. 4. SUB-SUB-ASSEMBLIES: The DaNI assembly is made of sub-assembly and sub-sub-assemblies. For example, locate and expand the “ Motor Sub-Assembly_Left-1 ” which consists of the TETRIX Motor-1 sub-sub-assembly and several parts. Locate the five listed sub-sub-assemblies (hint use the search box on top): 1. Middle Gear Hub Sub-Assembly-1 2. Axle Set Collar Bushing Sub-Assembly-1 3. Wheel Gear Hub Sub-Assembly-1 Create these three sub-sub-assemblies and save the sub-sub-assemblies as: Lastname_assemblyname.SLDASM . Example : Lastname_Middle_Gear_Hub_Sub-Assembly-1.SLDASM . Note: you will need both the 80-teeth spur gear that you made last week, and the 40-teeth motor spur gear you made in Step 2 this lab. Before using these gears, rename them as: Lastname_Spur_Gear_0.8M – 80T .sldprt and Lastname_Spur_Gear_0.8M – 40T .sldprt . Once your sub-sub-assemblies are complete, add them to the DaNI_ sub-assemblies folder.

MAE162D/E – UCLA R. S. Shaefer, Yenchi Chang 202 4 3 5. SUB-ASSEMBLIES: There are three distinct sub-assemblies. Review the DaNI eDrawing to study them. Some sub-assemblies contain sub-sub-assemblies, which you assembled earlier: 1. Gear Hub Sub-Assembly_Motor-1 2. Middle Gear Sub-Assembly-1 4. Wheel Sub-Assembly-1 When creating your sub-assemblies use your parts (the ones you made last week). For screws and other hardware look in the DaNI_parts folder and sub-folders. Name your sub-assembly as Lastname_assemblyname.SLDASM . Example of a sub- assembly name: Lastname_Gear_Hub_Sub-Assembly_Motor-1.SLDASM. A dd these sub- assemblies to your DaNI_sub-assemblies folder. 6. Once finished with your four parts, three sub-sub-assemblies, and three sub-assemblies, start the homework (see Week2 _ Homework _W23.pdf ). DELIVERABLES When the Grader downloads your SOLIDWORKS assignments from BruinLearn all submitted files – of the entire class – are downloaded together in ONE single folder with no subfolders. This makes grading burdensome and time consuming. Therefore, please upload your assignment in form of a single zip file : Lastname_InLab-Week-2.zip Submission Steps: 1. Zip the four parts that you created in Step 2: (i) U-Channel-288, (ii) Motor Mount, (iii) Motor Spur Gear ( 4 0T) , and (iv) Motor Hub (Hub Axle) as Lastname_Parts.zip 2. Zip the three DaNI sub-sub-assemblies (Step 4) as Lastname_SubSub-Assy.zip 3. Zip the three DaNI sub-assemblies (Step 5) as Lastname_Sub-Assy.zip  Zip the three files ( Lastname_Parts.zip, Lastname_SubSub-Assy.zip, Lastname_Sub-Assy.zip ) and upload it as Lastname_InLab-Week-2.zip (to be clear you are uploading one single zip file).

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Week 2 Optional DaNi Lab Assignment W24

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