3D printing – The Longhorn Engineer https://longhornengineer.com Robotics, Pinball, Hacking, Portables Tue, 20 Dec 2022 20:04:02 +0000 en-US hourly 1 3D printed part tray for a pick and place. https://longhornengineer.com/2014/06/11/3d-printed-part-tray-for-a-pick-and-place/ Wed, 11 Jun 2014 06:43:44 +0000 https://longhornengineer.com/?p=2191 Continue reading 3D printed part tray for a pick and place. →]]> At MacroFab, I have been working with a DP2006-2 Madell pick and place for the past 6 months doing low scale pcb manufacturing while we test our software on it. Some parts (like big MCUs and connectors) come on what is called a tray where the parts are laid out in a X-Y matrix. The pick and place machine knows the amount of parts and the offsets so it can pick up the parts in the tray.

Picture of a Part Tray
Picture of a Part Tray

For one of the jobs we are doing I needed two trays, one for the PSOC4 and another for the FFC connector for the LCD. The DP2006-2 is pretty limited in pick and place area so I decided to make a part tray that would hold both parts. First I measured out the metal tray area on the DP2006-2 and looked at the datasheets of the parts for the physical dimensions. Then used SketchUp to draw out the tray. I gave each part .15mm clearance around the maximium size of the part. This takes care of any tolerance issues. If the tolerance is to big then the part can become crooked in the tray and the machine might have difficulties in picking up the part.

SketchUp Model of the Part Tray
SketchUp model of the Part Tray

The Sketchup file can be downloaded here and the STL output for a 3D printer can be found here. I sent the files over to my friend Chris Kraft who printed the model with his MakerGear M2.

3D printed part tray with test squares
3D printed Part Tray with test squares

Chris sent me the model along with some test squares so I can test the ESD spray paint adherent to the PLA material the part tray was made out of. It adhered just fine to the bare PLA material so I went ahead and sprayed the part tray.

Part Tray in the DP2006-2
Part Tray in the DP2006-2

So far I have tested it with the FFC Connector and it has worked great! The PSOC4 fit but I have not trained the machine on it yet. I will post a picture when I load them into the machine.

]]> Full case printed! https://longhornengineer.com/2014/04/11/full-case-printed/ Fri, 11 Apr 2014 08:24:43 +0000 https://longhornengineer.com/?p=2178 20140411_025621

]]> Printing OctoPROBER Case! https://longhornengineer.com/2014/04/11/printing-octoprober-case/ Fri, 11 Apr 2014 06:11:09 +0000 https://longhornengineer.com/?p=2175 20140411_010048

]]> OctoPROBER Case Designed https://longhornengineer.com/2014/04/10/octoprober-case-designed/ Fri, 11 Apr 2014 01:12:15 +0000 https://longhornengineer.com/?p=2172 Continue reading OctoPROBER Case Designed →]]> OctoPROBER_Case

Finished drawing the case last night for 3D printing. Used SketchUp to draw it as its free. Still searching for that perfect 3D modeling program. SketchUp is an ok piece of software. Compared to AutoDesk 123D V9 it lacks some features but the newer 123D Design (they changed the name slightly) its pretty lame.

OctoPROBER_Case_XRAY

X-RAY view for giggles.

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