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! ''' Item Name ''' !! ''' Purpose '''!!'''QTY'''!!'''Cost'''!!'''Link''' | ! ''' Item Name ''' !! ''' Purpose '''!!'''QTY'''!!'''Cost'''!!'''Link''' | ||
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| 1/4" Male NPT to Compression Fitting || Pressured Air connection to device. || 1 || $1.60 || [ https://www.amazon.com/LTWFITTING-Brass-Compression-Connector-Fitting/dp/B00CHHYJY2 | | 1/4" Male NPT to Compression Fitting || Pressured Air connection to device. || 1 || $1.60 || [https://www.amazon.com/LTWFITTING-Brass-Compression-Connector-Fitting/dp/B00CHHYJY2 Amazon] | ||
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| 1/4" OD Polyethylene Tube || Pressured Air connection to device. || 1 || $0.79 || [ https://www.amazon.com/ATP-Value-Tube-Plastic-Tubing-Natural/dp/B000CDCY1S/ref=sr_1_1?crid=NV8EJ6B3CLV4&keywords=polyethylene+tubing&qid=1573113114&s=industrial&sprefix=Polyeth%2Cindustrial%2C181&sr=1-1 | Amazon ] | | 1/4" OD Polyethylene Tube || Pressured Air connection to device. || 1 || $0.79 || [https://www.amazon.com/ATP-Value-Tube-Plastic-Tubing-Natural/dp/B000CDCY1S/ref=sr_1_1?crid=NV8EJ6B3CLV4&keywords=polyethylene+tubing&qid=1573113114&s=industrial&sprefix=Polyeth%2Cindustrial%2C181&sr=1-1 Amazon] | ||
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| 1/4" Bolts || Assembly || 8 || $0.92 || [https://www.amazon.com/Stainless-Steel-100pcs-Bolt-Dropper/dp/B075DJHTNG Amazon] | |||
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| 1/4" Nuts || Assembly || 8 || $0.64 || [https://www.amazon.com/Stainless-Bolt-Dropper-Steel-Nuts/dp/B06X1FNS96/ref=pd_bxgy_60_3/138-4597272-4092742?_encoding=UTF8&pd_rd_i=B06X1FNS96&pd_rd_r=1b8a69b2-43c4-4356-af46-81bb22c32b84&pd_rd_w=gFzKJ&pd_rd_wg=vaWkD&pf_rd_p=09627863-9889-4290-b90a-5e9f86682449&pf_rd_r=P21AR4N1MERNX92ARMR6&psc=1&refRID=P21AR4N1MERNX92ARMR6 Amazon] | |||
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| Washers || Assembly || 16 || $1.03 || [https://www.amazon.com/Stainless-Outside-Diameter-Bolt-Dropper/dp/B07KQ198NP/ref=pd_bxgy_60_2/138-4597272-4092742?_encoding=UTF8&pd_rd_i=B07KQ198NP&pd_rd_r=9a20e588-fd46-4654-a697-02b32a5f1371&pd_rd_w=HHtzo&pd_rd_wg=RWx6i&pf_rd_p=09627863-9889-4290-b90a-5e9f86682449&pf_rd_r=X6Q3KHH1DFKGKE8Q2GV7&psc=1&refRID=X6Q3KHH1DFKGKE8Q2GV7 Amazon] | |||
Revision as of 08:00, 7 November 2019
Overview
This tool is meant to provide a versatile and affordable means of testing the flow of air at critical mach numbers via open source hardware/software. This test environment is primarily composed of a 3D-printed 2D nozzle enclosed in an acrylic casing. Air is fed via pressurized gas canister into the inlet and the flow at the outlet is visualized via a shadow box.
This project was initially developed by Marcello Guadagno and Jacob Loss for Dr. Kazuya Tajiri (Kaz) at Michigan Technological University.
Software
This project uses the SciPy library in Python to generate a parametric openSCAD model for export to your 3D print slicer of choice.
- Download Nozzle Code Here [wip]
Hardware
All components can be found online or at your local hardware store. See BOM for details
Savings
- Typical Cost: No standard product for this sold. All are custom designs and would be made from machined aluminum by a skilled machinist. Would cost at least $200 USD
- OS Project Cost: ~$15.00 USD
- Estimated Savings: > $180 USD
Results
BOM
| Item Name | Purpose | QTY | Cost | Link |
|---|---|---|---|---|
| 1/4" Male NPT to Compression Fitting | Pressured Air connection to device. | 1 | $1.60 | Amazon |
| 1/4" OD Polyethylene Tube | Pressured Air connection to device. | 1 | $0.79 | Amazon |
| 1/4" Bolts | Assembly | 8 | $0.92 | Amazon |
| 1/4" Nuts | Assembly | 8 | $0.64 | Amazon |
| Washers | Assembly | 16 | $1.03 | Amazon |