Fabrication

How To Submit Parts for Fabrication At Harris

Follow the steps below for proper modeling and submittal of parts. It is critical to understand the type of part that is being made (sheetmetal or machined) as this will dictate the model generation along with the types of files that will be required in order to physically make the part.

If you have any questions, please ask Amy Averill (aaverill ---AT--- harris --DOT-- com).

Steps For Fabrication

1. Determine if the part will be a sheet metal part or a solid part
   • Sheetmetal Parts: flat parts with holes that go all the way through the material, and may get bent into a shape
   • Machined Parts: pieces with intricate surfaces made from a block of aluminum, bar stock that needs to be cut to length.

1. Model the part appropriately depending on if the part is Sheetmetal or Machined from a solid part in OnShape:
   • Sheetmetal Parts: You must meet very specific requirements in the design of your part! Read the instructions on the Sheetmetal at Harris page to configure your part for the required bend radius and material thickness!
   • Machined Parts:
2. Create the necessary files for fabrication:
   • Sheetmetal Parts: Click this link for steps on generating files for Sheetmetal Parts at Harris: Preparing Files for Fabrication
     -- OR --
   • Machined Parts: Click this link for steps on generating the files for Machined Part Files and Documents
   • Be sure to follow the instructions carefully! Your part will be rejected and not made if you do not follow the instructions!
3. Have all files checked by a mentor!
4. Email the required files to aaverill ---AT--- harris --DOT-- com.
   • You made the required files in the prior step!

     Sheetmetal Parts

     • .pdf (old instructions)
     • .dxf - Must be 2000LT (old instructions)

     Machined Parts

     • .pdf
     • .stp
5. Update the Google Drive Part & Assembly log to indicate that the part has been sent to Harris for fabrication.
   
   

<span class="mwt-editable mwt-comment" id="R1737408841880" " draggable="false" contenteditable="true">

Date Files Emailed	Requested Item (Filename)	Requestor	Parts Ordered By/Date	Quantity Per Robot	Received Date

How To Add Stencil Font To Parts

Follow the steps below to get stencil font text in an OnShape Part.

Steps:

1. Open Inventor
2. File -> New -> Part
3. Click "Start 2D Sketch"
4. Click on one of the planes, that are in the center of the screen
5. Click "Text" from the menu
6. Click on the center of the screen, to get the 'Format Text' dialog to appear
7. Change the font name (might be Tahoma) to be: Stencil
8. Type your text in the large box.
9. Adjust size as desired, then click OK
10. Click 'Finish Sketch'
11. Click 'Extrude' from the menu
12. Click your text, then click OK
13. Click File -> the arrow for Save As -> Save As
14. Name your part, then click Save
15. Click File -> the arrow for New -> Drawing
16. On the left, under 'Sheet:1', delete 'Default Border' and 'ANSI - Large' (right-click on each and select Delete)
17. Click 'Base' from the menu
18. Rotate until you see the text, in the proper orientation (using the box that says 'Front' and its arrows)
19. In the 'Drawing View' dialog, set Scale to "1:1", then click OK
20. Click File -> the arrow for Save As -> Save Copy As
21. Set 'Save as type' to "DXF Files (*.dxf)", then click Save
22. Go to OnShape
23. Click the "+" in the lower left and select "Import..."
24. Find your .dxf file, select it, then click "Open"
25. Select the tab for the part you want to put the text on.
26. Select the surface you want to put the text on.
27. Start a new Sketch.
28. Find the 'DXF' icon in the menu, , click the arrow next to it, then select "Insert DXF or DWG".
29. Find your .dxf file and click OK (i.e. the check mark in the upper right of the dialog).
30. Select the text (e.g. move cursor to be above and left of the text, press and hold left mouse button, move the mouse to be below and right of the text, then release the left mouse button).
31. Use the Transform tool, , to scale and/or move the text (NOTE: if might be hidden behind the Linear Pattern, , click the arrow next to it to see Transform and select it).

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How To 3D Print Parts

Follow the steps below for proper modeling of 3D printed parts.

If you have any questions, please ask Dave.

Steps For 3D Printing (Detailed Instructions)

1. Open the part file you want to 3D Print
2. Do an Export --> CAD Format
3. Change the Save As Type to STL Files (*STL)
4. In the file Dialog press the Options... button.
5. Make sure the Format is set to Binary.
6. Set the Units pull down selector to mm.
7. Set the Resolution to High.
8. Leave everything else as default.
9. Press the OK button.
10. Back in the file dialog navigate to the location you want to save the file and update the file name.  Put 3D printer files in ..\02 Build Season (ROBOT)\10 Shop Drawings\3D Printer.
11. Press the Save button in the file dialog.
12. Create a drawing of the part and put it in the shop binder.
13. Uncheck the box for Export Colors

 

NOTE: The dimensions for a clearance hole for 1/2 inch hex axle is .60 inches from a corner of the hexagon to the opposite corner, as per photo below. 

Archives

• 2009 Fabrication Page