Can the QR2 Lite really take 15 Nm of force safely on the Fanatec DD Extreme?

I set out to destroy a QR2 Lite and in the process try to better understand just how strong (or weak) they are.

This experiment has many flaws as outlined in the video, but I went ahead to see if it would still exceed my expectations. It's the other Dan you're thinking of that does stuff properly (@DanSuzuki )

Thanks to https://www.h2mengineering.co.uk/ for assisting and providing the high-strength facilities I'd need for this - they specialise in hard to make components across a variety of engineering disciplines, hence the name H2M.

My conclusion:

As a benchmark, the QR1 did better than I expected, but as we all know, its true weaknesses are mainly in the gradual wearing down of the plastic spline/keyway over usage and time.

The QR2 did much better than I expected, the amount of force going through that torque wrench was really high. Even though it split/cracked just before the flange gave way, it didn't explode and stayed on tight. It's a much, much stronger QR than the QR1 was. Time will tell if it also suffers from wear and tear and loosens or starts to have play/rattle as a result, but everything I've seen points to a fundamentally better design which has been built much stronger, too.

I may return and do this again with all 6 bolts fastened, but to be honest it withstood such high force I don't really think it's necessary, it kinda overperformed despite being dealt a bad hand.

Just disappointed nothing exploded spectacularly. I wore safety specs, for crying out loud.

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0:00 Intro Waffle
1:44 Test Flaws
4:08 QR1 Lite
8:08 QR2 Lite
16:02 Outro Waffle


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