Thursday, May 29, 2014

Materials Received and to be Incorporated into the Final Project:
MSA Millennium Gas Mask-
The mask will be used as a platform for testing the air delivery system. It will hold both the 40mm Filter and the air delivery system.



Scuba Stage 2 Regulator-
The regulator is primarily used for the command valve within it. When the user breaths the regulator allows ambient pressure air to enter the mask, when they stop breathing or exhale the air is cut off.



40mm NATO Filter-
The filter is used only as a fail safe for this project. In case of air delivery system failure, the user can use the filter to breath in filtered air.



(should be ~33ci) 68ci/4500psi Air Tank Bottle
The bottle will be used to store the high pressure air.

Note: Picture includes the Air Tank Regulator and the ASA

Air Tank Regulator (Output of 750-850 psi)
This regulator will be used to reduce the pressure of the air inside of the bottle to a lower and safer operating pressure. 



90 degree Macroline Fitting
The fitting will connect the Scuba regulator to the macroline so the air can pass from the air tank into the regulator. 

Note: Picture also includes Macroline

POPS ASA (Push On/OFF Purge System)
The POPS ASA will be used as another fail safe for the final design. If the air ever becomes uncontrollable due to the SCUBA regulator failing the ASA can cut off all air flowing out of the air tank almost instantly.



Macroline
The macroline will be how the travels from the air tank to the Scuba regulator.



2.25" x 2.25" x 4.00" block of aluminum to be made into two adapters
 The aluminum will be milled so that there is an adapter for the macroline fitting to fit onto the scuba regulator and another adapter will be milled so that the scuba regulator fits into the gas mask.

Note: This is only an unfinished adapter made of the aluminum

Wednesday, May 28, 2014

Drexel Machine Shop - Making the First Adapter



In order to connect the air tank to the SCUBA regulator, a small female to female threaded adapter needed to be made. See below for the dimensions.



Below are two videos of this adapter being created using a lathe in the Drexel Machine Shop.