# Christophe's Test Cell

A working test cell utilizing a T33 water filter tube and a 3D printed base. Additional support for pressure, temperature sensors and pressurization gauges and safety valves.

# Construction Method & Details

<p class="callout success">PDF Download: [Procedure for manufacturing a standard tubular test cell (1).pdf](http://stanslegacy.com/attachments/58)</p>

> Procedure for manufacturing a standard tubular test cell.

#### Parts List

<table border="1" id="bkmrk-t33-water-filter-car" style="border-collapse: collapse; width: 100%; height: 1459.45px;"><tbody><tr style="height: 174.361px;"><td class="align-left" style="width: 59.8227%; height: 174.361px;">T33 Water Filter Cartridge Housing</td><td style="width: 19.7812%; height: 174.361px;">[![51oXO1VpUYL._AC_SX522_.jpg](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/Yu5x0SMsuT3bHCti-51oxo1vpuyl-ac-sx522.jpg)](http://stanslegacy.com/uploads/images/gallery/2022-06/Yu5x0SMsuT3bHCti-51oxo1vpuyl-ac-sx522.jpg)  
</td><td class="align-center" style="width: 20.3954%; height: 174.361px;">[Example 1](https://www.aliexpress.com/item/2251832763553712.html?gps-id=pcDetail404&scm=1007.16891.96945.0&scm_id=1007.16891.96945.0&scm-url=1007.16891.96945.0&pvid=7a00b93e-f039-463e-a3c9-e7390be10d07&_t=gps-id%3ApcDetail404%2Cscm-url%3A1007.16891.96945.0%2Cpvid%3A7a00b93e-f039-463e-a3c9-e7390be10d07%2Ctpp_buckets%3A668%230%23131923%2396_668%230%23131923%2396_668%23888%233325%2318_668%23888%233325%2318_668%232846%238108%231977_668%232717%237566%23834__668%233374%2315176%23431_668%232846%238108%231977_668%232717%237566%23834_668%233164%239976%23880_668%233374%2315176%23431&gatewayAdapt=4itemAdapt)

[Example 2](https://www.amazon.com/YOEDAF-Housing-Purifier-Refillable-Transparent/dp/B07J5B7PXM/ref=asc_df_B07J5B7PXM/?tag=hyprod-20&linkCode=df0&hvadid=312323295970&hvpos=&hvnetw=g&hvrand=13292041307042212722&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9016396&hvtargid=pla-646809454782&psc=1)

</td></tr><tr style="height: 138.92px;"><td style="width: 59.8227%; height: 138.92px;">Waterproof cable gland M8\*1.5.</td><td style="width: 19.7812%; height: 138.92px;">[![Screenshot from 2022-06-29 21-32-23.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/BTO8YqwCMdCYad2i-screenshot-from-2022-06-29-21-32-23.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/BTO8YqwCMdCYad2i-screenshot-from-2022-06-29-21-32-23.png)</td><td style="width: 20.3954%; height: 138.92px;">[Example](https://www.aliexpress.com/item/32845321344.html?spm=a2g0s.9042311.0.0.e55c6c37GIEAvZ)

</td></tr><tr style="height: 136.861px;"><td style="width: 59.8227%; height: 136.861px;">Optional Nylon Pneumatic Blanking Plug 4mm Hose Tube Push Fit  
Connector Air Line</td><td style="width: 19.7812%; height: 136.861px;">[![Screenshot from 2022-06-29 21-32-30.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/fCpDg7BFko9LnAEL-screenshot-from-2022-06-29-21-32-30.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/fCpDg7BFko9LnAEL-screenshot-from-2022-06-29-21-32-30.png)</td><td style="width: 20.3954%; height: 136.861px;"></td></tr><tr style="height: 116.918px;"><td style="width: 59.8227%; height: 116.918px;">MPX5500DP PACKAGING SIP 6 pressure sensor.</td><td style="width: 19.7812%; height: 116.918px;">[![Screenshot from 2022-06-29 21-32-35.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/kvn8QwSQ2B8dnJj5-screenshot-from-2022-06-29-21-32-35.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/kvn8QwSQ2B8dnJj5-screenshot-from-2022-06-29-21-32-35.png)</td><td style="width: 20.3954%; height: 116.918px;"></td></tr><tr style="height: 137.926px;"><td style="width: 59.8227%; height: 137.926px;">6\*4mm polyurethane pneumatic hose .</td><td style="width: 19.7812%; height: 137.926px;">[![Screenshot from 2022-06-29 21-32-39.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/BJ3udMdBX7J5jOHB-screenshot-from-2022-06-29-21-32-39.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/BJ3udMdBX7J5jOHB-screenshot-from-2022-06-29-21-32-39.png)</td><td style="width: 20.3954%; height: 137.926px;"></td></tr><tr style="height: 137.926px;"><td style="width: 59.8227%; height: 137.926px;">Various 1/4" BSP Thread Tee Type 3 Way Brass Pipe Fitting</td><td style="width: 19.7812%; height: 137.926px;">[![Screenshot from 2022-06-29 21-32-45.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/HcM6DaBMFSzIiHZK-screenshot-from-2022-06-29-21-32-45.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/HcM6DaBMFSzIiHZK-screenshot-from-2022-06-29-21-32-45.png)</td><td style="width: 20.3954%; height: 137.926px;"></td></tr><tr style="height: 35.3835px;"><td style="width: 59.8227%; height: 35.3835px;">Brass Hex Bushing Reducer Pipe Fitting 1/8” –&gt; 1/4”</td><td style="width: 19.7812%; height: 35.3835px;">[![Screenshot from 2022-06-29 21-32-52.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/aKX4iybhRtvcYVw9-screenshot-from-2022-06-29-21-32-52.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/aKX4iybhRtvcYVw9-screenshot-from-2022-06-29-21-32-52.png)</td><td style="width: 20.3954%; height: 35.3835px;"></td></tr><tr style="height: 49.3182px;"><td style="width: 59.8227%; height: 49.3182px;">4mm Long Hose Barb x 1/4" Male BSP Thread Brass Barbed Pipe Fitting</td><td style="width: 19.7812%; height: 49.3182px;">[![Screenshot from 2022-06-29 21-32-57.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/Qp8XyGBcKF2Xq6Iq-screenshot-from-2022-06-29-21-32-57.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/Qp8XyGBcKF2Xq6Iq-screenshot-from-2022-06-29-21-32-57.png)</td><td style="width: 20.3954%; height: 49.3182px;"></td></tr><tr style="height: 49.3182px;"><td style="width: 59.8227%; height: 49.3182px;">0~30psi 0~2bar 40 Diameter Fuel Air Compressor Low Pressure Meter.</td><td style="width: 19.7812%; height: 49.3182px;">[![Screenshot from 2022-06-29 21-33-03.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/PFrTemcGXt0Q5KKY-screenshot-from-2022-06-29-21-33-03.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/PFrTemcGXt0Q5KKY-screenshot-from-2022-06-29-21-33-03.png)</td><td style="width: 20.3954%; height: 49.3182px;"></td></tr><tr style="height: 35.3835px;"><td style="width: 59.8227%; height: 35.3835px;">1/4" mini brass ball valve BSP male to female.</td><td style="width: 19.7812%; height: 35.3835px;">[![Screenshot from 2022-06-29 21-33-12.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/tIi7pz28mnu0L6dK-screenshot-from-2022-06-29-21-33-12.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/tIi7pz28mnu0L6dK-screenshot-from-2022-06-29-21-33-12.png)</td><td style="width: 20.3954%; height: 35.3835px;"></td></tr><tr style="height: 35.3835px;"><td style="width: 59.8227%; height: 35.3835px;">1/4'' 8KG BSP Air Compressor Safety Release Valve Pressure Relief</td><td style="width: 19.7812%; height: 35.3835px;">[![Screenshot from 2022-06-29 21-33-29.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/rpfeDBCGDGMpCFaV-screenshot-from-2022-06-29-21-33-29.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/rpfeDBCGDGMpCFaV-screenshot-from-2022-06-29-21-33-29.png)</td><td style="width: 20.3954%; height: 35.3835px;"></td></tr><tr style="height: 49.3182px;"><td style="width: 59.8227%; height: 49.3182px;">DS18b20 Stainless steel package Waterproof (These will have to be  
adapted to improve waterproofing see below)</td><td style="width: 19.7812%; height: 49.3182px;">[![Screenshot from 2022-06-29 21-33-34.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/1pd0RVRS2M4KytSB-screenshot-from-2022-06-29-21-33-34.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/1pd0RVRS2M4KytSB-screenshot-from-2022-06-29-21-33-34.png)</td><td style="width: 20.3954%; height: 49.3182px;"></td></tr><tr style="height: 35.3835px;"><td style="width: 59.8227%; height: 35.3835px;">Heat shrink tube</td><td style="width: 19.7812%; height: 35.3835px;">[![Screenshot from 2022-06-29 21-33-39.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/yAZLFw1RMzWYdM7O-screenshot-from-2022-06-29-21-33-39.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/yAZLFw1RMzWYdM7O-screenshot-from-2022-06-29-21-33-39.png)</td><td style="width: 20.3954%; height: 35.3835px;"></td></tr><tr style="height: 35.3835px;"><td style="width: 59.8227%; height: 35.3835px;">4mm Banana Plugs Socket Connector</td><td style="width: 19.7812%; height: 35.3835px;">[![Screenshot from 2022-06-29 21-33-44.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/ErYWP8ZZZTvRvRQR-screenshot-from-2022-06-29-21-33-44.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/ErYWP8ZZZTvRvRQR-screenshot-from-2022-06-29-21-33-44.png)</td><td style="width: 20.3954%; height: 35.3835px;"></td></tr><tr style="height: 35.3835px;"><td style="width: 59.8227%; height: 35.3835px;">Thread sealant</td><td style="width: 19.7812%; height: 35.3835px;">[![Screenshot from 2022-06-29 21-33-52.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/YZsLDjSfIkruA4Pn-screenshot-from-2022-06-29-21-33-52.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/YZsLDjSfIkruA4Pn-screenshot-from-2022-06-29-21-33-52.png)</td><td style="width: 20.3954%; height: 35.3835px;"></td></tr><tr style="height: 35.3835px;"><td style="width: 59.8227%; height: 35.3835px;">Teflon tape</td><td style="width: 19.7812%; height: 35.3835px;">[![Screenshot from 2022-06-29 21-33-57.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/mbXZOzhZMV1nXyoq-screenshot-from-2022-06-29-21-33-57.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/mbXZOzhZMV1nXyoq-screenshot-from-2022-06-29-21-33-57.png)</td><td style="width: 20.3954%; height: 35.3835px;"></td></tr><tr style="height: 35.3835px;"><td style="width: 59.8227%; height: 35.3835px;">Epoxy resin.</td><td style="width: 19.7812%; height: 35.3835px;">  
</td><td style="width: 20.3954%; height: 35.3835px;"></td></tr><tr style="height: 82.9261px;"><td style="width: 59.8227%; height: 82.9261px;">Stainless steel tube 304L or 316L:  
Outer tube 16x2mm or 14x1mm ; 100mm length.  
Inner tube or rod ext diameter 10mm ; 110mm length.  
The goal is to get a 1 mm gap between outer and inner tube.</td><td style="width: 19.7812%; height: 82.9261px;">[![ZqyFDr5Sv2aNmcVR-download-3.jpeg](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/GI7Yj10Z9gSWlWG4-zqyfdr5sv2anmcvr-download-3.jpeg)](http://stanslegacy.com/uploads/images/gallery/2022-06/GI7Yj10Z9gSWlWG4-zqyfdr5sv2anmcvr-download-3.jpeg)</td><td style="width: 20.3954%; height: 82.9261px;"></td></tr><tr style="height: 102.585px;"><td style="width: 59.8227%; height: 102.585px;">T33 cell : Bottom, Stand and cap spacer  
The bottom and the tubes cap spacer have been designed for 16x2mm outer tube and 10mm inner tube. Ask for different dimensions.

</td><td style="width: 19.7812%; height: 102.585px;">[![Screenshot from 2022-06-29 21-43-42.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/3Aq9qJpRKzPdvGUI-screenshot-from-2022-06-29-21-43-42.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/3Aq9qJpRKzPdvGUI-screenshot-from-2022-06-29-21-43-42.png)</td><td style="width: 20.3954%; height: 102.585px;">[ThingVerse STL](https://www.thingiverse.com/thing:4781212)

</td></tr></tbody></table>

##### Sealing of the DS18b20 temperature sensor:

<p class="callout warning">The DS18b20 must be sealed with epoxy resin otherwise, the water will leak throw the cable due the pressure inside the cell chamber.</p>

**1- Remove the heat shrink tube protection.**

[![Screenshot from 2022-06-29 21-45-41.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/pql2ZWBKtPQydNpg-screenshot-from-2022-06-29-21-45-41.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/pql2ZWBKtPQydNpg-screenshot-from-2022-06-29-21-45-41.png)

**2 - Protect the stainless tube with masking tape and pour the tube with epoxy resin.**

[![Screenshot from 2022-06-29 21-45-49.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/f7grkAdX8ENI9nXk-screenshot-from-2022-06-29-21-45-49.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/f7grkAdX8ENI9nXk-screenshot-from-2022-06-29-21-45-49.png)

**3 - Once dry, remove the masking tape.**

![Screenshot from 2022-06-29 21-45-57.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/Eoaa23ry6XS0R9ix-screenshot-from-2022-06-29-21-45-57.png)

**4 – In order to keep it clean replace the heat shrink tube.**

[![Screenshot from 2022-06-29 21-48-21.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/SqE0vZJlYYI8vT00-screenshot-from-2022-06-29-21-48-21.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/SqE0vZJlYYI8vT00-screenshot-from-2022-06-29-21-48-21.png)

**5 – The DS18b20 is now ready to be used in a pressurized vessel.**

[![Screenshot from 2022-06-29 21-48-27.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/J30bIPJOPJreL67i-screenshot-from-2022-06-29-21-48-27.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/J30bIPJOPJreL67i-screenshot-from-2022-06-29-21-48-27.png)

##### T33 Bottom waterproofing:

> In order to resist to the pressure and avoiding leaks, the bottom need to be filled with epoxy.  
> The printing wall thickness needs to be 5 walls in order to get a strong threaded part.  
> It needs only one 1st layer because it will be removed later. (But at least 1 layer for bed adhesion  
> purpose). To improve bed adhesion, print with an additional skirt.

**1 - Print the bottom.**

<p class="callout info">This type of infill is not necessary. Any kind of infill will allow epoxy to flow and pour the part. </p>

[![Screenshot from 2022-06-29 21-50-18.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/p7Jq9DV0DQuLyibR-screenshot-from-2022-06-29-21-50-18.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/p7Jq9DV0DQuLyibR-screenshot-from-2022-06-29-21-50-18.png)

**2 – Remove the bottom layer.**

**[![Screenshot from 2022-06-29 21-51-12.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/xrF1oWSVYXb0v8HL-screenshot-from-2022-06-29-21-51-12.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/xrF1oWSVYXb0v8HL-screenshot-from-2022-06-29-21-51-12.png)**

**3 – Pour the cap with epoxy resin.**

[![Screenshot from 2022-06-30 17-11-29.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/U78tfoB2VRezhv7h-screenshot-from-2022-06-30-17-11-29.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/U78tfoB2VRezhv7h-screenshot-from-2022-06-30-17-11-29.png)

**4 – Take care that the epoxy doesn't leak through the holes. In some cases, it will be useful to plug the orifices with silicone which can then be removed.**

[![Screenshot from 2022-06-30 17-05-26.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/xLRltE4ajrnZWvA5-screenshot-from-2022-06-30-17-05-26.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/xLRltE4ajrnZWvA5-screenshot-from-2022-06-30-17-05-26.png)

**5 – Allow it to harden completely before attempting to use it.**

**[![Screenshot from 2022-06-30 17-05-40.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/7j6SlD88em1amG2P-screenshot-from-2022-06-30-17-05-40.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/7j6SlD88em1amG2P-screenshot-from-2022-06-30-17-05-40.png)**

**6 – Install the different connections and fittings.**

[![Screenshot from 2022-06-30 17-05-49.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/j7sQWdVpCOIViHsS-screenshot-from-2022-06-30-17-05-49.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/j7sQWdVpCOIViHsS-screenshot-from-2022-06-30-17-05-49.png)

[![Screenshot from 2022-06-30 17-05-59.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/sLfGMXrhRA6hPjxq-screenshot-from-2022-06-30-17-05-59.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/sLfGMXrhRA6hPjxq-screenshot-from-2022-06-30-17-05-59.png)

<p class="callout info">There’s many way to connect each components, here is an example of the parts I used:</p>

<table border="1" id="bkmrk-%C2%A0-3" style="border-collapse: collapse; width: 100%; height: 459.489px;"><tbody><tr style="height: 429.702px;"><td style="width: 33.2912%; height: 429.702px;">[![Screenshot from 2022-06-30 17-06-07.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/ANWpEH99D7TZtyJM-screenshot-from-2022-06-30-17-06-07.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/ANWpEH99D7TZtyJM-screenshot-from-2022-06-30-17-06-07.png)</td><td style="width: 33.2912%; height: 429.702px;">[![Screenshot from 2022-06-30 17-07-03.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/ZUndzef6NRA8YWvB-screenshot-from-2022-06-30-17-07-03.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/ZUndzef6NRA8YWvB-screenshot-from-2022-06-30-17-07-03.png)</td><td style="width: 33.2948%; height: 429.702px;">[![Screenshot from 2022-06-30 17-06-44.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/SVtK6hZ6pzqUnPyt-screenshot-from-2022-06-30-17-06-44.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/SVtK6hZ6pzqUnPyt-screenshot-from-2022-06-30-17-06-44.png)</td></tr><tr style="height: 29.7869px;"><td style="width: 33.2912%; height: 29.7869px;">[![Screenshot from 2022-06-30 17-06-51.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/ruaIzUMmBUfcaW8A-screenshot-from-2022-06-30-17-06-51.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/ruaIzUMmBUfcaW8A-screenshot-from-2022-06-30-17-06-51.png)</td><td style="width: 33.2912%; height: 29.7869px;">  
</td><td style="width: 33.2948%; height: 29.7869px;">[![Screenshot from 2022-06-30 17-06-35.png](http://stanslegacy.com/uploads/images/gallery/2022-06/scaled-1680-/0m6H81vcI10IyaWm-screenshot-from-2022-06-30-17-06-35.png)](http://stanslegacy.com/uploads/images/gallery/2022-06/0m6H81vcI10IyaWm-screenshot-from-2022-06-30-17-06-35.png)</td></tr></tbody></table>