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> Ghetto engineering - Master cylinder style, I had to share
Mikey914
post Aug 31 2017, 11:43 PM
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As may of you know we are in the process of producing master cylinders. Unlike some vendors with impeccably clean "Laboratory " complete with Periodic table. This is how we get things done.

Phase 1
We have a test bed that simulates braking, and are looking to see where our weak points are. We will put no less than 25,000 cycles on this part. This will take awhile as we can only get about 200 at a time without the motor heating up, but believe this to be a very rigorous test.

Phase 2
If we make it to 25,000 we will start measuring output from the pressure lines. This will be thoroughly broken in system we will be testing, not just testing with air pressure.

After the final round of testing we will tear it down to determine wear on critical components and examine the seals to see how well they have held up. If they show excessive wear we will look at improvements that may need to be made. Especially so if we don't make 25,000.

My only serious concern is that the metal on the test stand may fatigue making us repair it before we hit 25,000 cycles. We are currently a little less than 5000 cycles.

I thought I'd share this as many of you don't realize what we do behind the scenes t o actually make the parts we all need.

https://youtu.be/UskyAeVAF9Y

https://www.youtube.com/watch?v=UskyAeVAF9Y
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Posts in this topic
Mikey914   Ghetto engineering - Master cylinder style   Aug 31 2017, 11:43 PM
Andyrew   How about you put some aluminum fins on the motor ...   Sep 1 2017, 06:18 AM
mb911   How about you put some aluminum fins on the motor...   Sep 1 2017, 06:50 AM
saigon71   Love it! :beer2:   Sep 1 2017, 06:50 AM
GeorgeRud   Well, at least the flexing of the stand helps repl...   Sep 1 2017, 07:51 AM
tygaboy   I have a few spare wiper motors... :idea: Can yo...   Sep 1 2017, 08:39 AM
Elliot Cannon   Your test devise sounds like my heart when I wake ...   Sep 1 2017, 09:41 AM
Mikey914   Your test devise sounds like my heart when I wake...   Sep 1 2017, 10:07 AM
KELTY360   That's a really boring video. Maybe if you had...   Sep 1 2017, 09:53 AM
914Sixer   Probably a more vigorous testing setup than the in...   Sep 1 2017, 12:25 PM
PanelBilly   Move this thread to the sandbox and I'll post ...   Sep 1 2017, 01:04 PM
bigkensteele   I love it. Good engineering is the exercise of cr...   Sep 1 2017, 04:17 PM
Dr Evil   Awesome, but needs over dub with porno music and s...   Sep 2 2017, 09:45 AM
Mikey914   Yes Brown chicken brown cow   Sep 2 2017, 09:48 AM
bdstone914   I think you are going to metal fatigue the pedal s...   Sep 2 2017, 09:49 AM
Mikey914   Figured I'd see what broke 1st.   Sep 2 2017, 10:23 AM
ConeDodger   My experience with not just our 914 Master cylinde...   Sep 2 2017, 02:31 PM
porschetub   My experience with not just our 914 Master cylind...   Sep 23 2017, 09:31 PM
timothy_nd28   Is this thing still chugging away or did something...   Sep 23 2017, 09:25 PM
Mikey914   Broke somewhere around 10k. The weld broke. Kept c...   Sep 23 2017, 10:08 PM
AZBanks   Your testing is 100% unrealistic and not related t...   Sep 23 2017, 11:04 PM
euro911   /lt-udg9zQSE   Sep 23 2017, 11:11 PM
r_towle   Awesome to see, and great backyard engineering...   Sep 24 2017, 09:28 AM


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