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Engineering a Professional Grinding Arbor

388K views · Sep 12, 2025 · Science & Technology

Comments · 558

  • @MariusHornberger · 1 year ago · pinned

    Thanks, Stefan (@CNCKitchen), for all the Slow-mo footage. Let us know what you think about it.

    217

  • @nikostsatsis9478 · 1 year ago

    This dude makes exponentially better things in every video

    539

  • @shmoffshore1337 · 1 year ago

    Please no music going forward. We all love the machine sounds and your down to earth and not flashy engineering style. Don't change - your are doing good

    467

  • @mentiras_xox · 1 year ago (edited)

    only german overengineering could produce a 40 minute video on making some bolt-on sticks. i&apos;m at <a href="https://www.youtube.com/watch?v=XMScDYHgAVI&amp;t=98">1:38</a> and i&apos;m pretty sure i won&apos;t skip a second of it.

    166

  • @mrjspeed · 1 year ago

    People complain about anything these days. &nbsp;Music was like ~20 seconds worth of b-roll overlay. &nbsp;You do you Marius. &nbsp;Music was fine and to me added a little dimension to the intro.

    321

  • @FVT-tn8ji · 1 year ago

    Please never stop making these kinds of videos, I could watch them forever!! You&apos;re a genius and it&apos;s a real pleasure to watch you problem-solving, Marius!

    94

  • @GeorgeC.bladesmith · 1 year ago (edited)

    So, I&apos;m a knife maker, so I have a lot of experience with hardening. First, don&apos;t put it in water - it&apos;s too harsh and fast, buy hardening oil. Second, before tempering, remove the oxides after hardening so you can see the tempering colors - find tables of what tempering colors should look like by your steel and try to guess by eye. Third, get a hardness tester (old - for a new restoration video) or a new one (more expensive) or the cheapest option (but not very accurate) are files with a certain hardness, according to which you will determine the hardness of the surface by scratching.

    74

  • @WoodCreation-m1u · 2 months ago

    This is the kind of shop-built tool that can rival commercial equipment. The precision and machining quality are outstanding!

  • @Michel-nb7ob · 2 weeks ago

    I watch a lot of videos like this and I’ve been following Marius since he was a teenager. I’m always blown away by his level and his projects. But sometimes, it&apos;s so fast that I feel it&apos;s more like a demonstration &nbsp;than a sharing of knowledge.

  • @ketsu_pl · 1 year ago (edited)

    It’s somewhat ironic that I started following you because of the woodwork and now you almost explicitly work with metal 😅 but no worries, it’s still an awesome content even if I won’t replicate any of it

    56

  • @andreasmenz1748 · 1 year ago

    Reading &quot;Made in W. Germany&quot; on the bit holder. Apparently it stood the test of time! 😊

    14

  • @ZaneWBuxton · 1 year ago

    The foley work at <a href="https://www.youtube.com/watch?v=XMScDYHgAVI&amp;t=933">15:33</a> is impeccable :)

    60

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