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Thread: Radius gauge and reverse engineering

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    [email protected] tonyfoale's Avatar
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    Radius gauge and reverse engineering

    I recently posted about some reverse engineering that I needed to do to replicate some classic motorcycle crankcases at
    Height gauge addition.

    Continuing on from that I needed to measure some corner and other radii, there are many possibilities for such tasks, for example MichaelMoore recently posted his templates at
    A radius gauge

    This current post is about a set of radius gauges that I built using a digital gauge as the measuring element.

    Radius gauge and reverse engineering-radius-gauge-06.jpg Radius gauge and reverse engineering-boxed.jpg Radius gauge and reverse engineering-radius-gauge-11.jpg

    I have put the full story in a PDF which can be seen and/or downloaded from:
    Tony's radius gauge
    I have also written a simple bit of software to perform radius calculations and that is linked in the PDF file. I will also add a video in the next few days.

  2. The Following 19 Users Say Thank You to tonyfoale For This Useful Post:

    cellardweller (12-25-2018), DIYSwede (05-20-2019), GKK (12-28-2018), HUMARIA (03-18-2019), janders1957 (12-24-2018), LMMasterMariner (12-25-2018), Metallurg33 (12-25-2018), nashty1 (12-25-2018), NortonDommi (12-25-2018), olderdan (12-22-2018), PJs (12-26-2018), Rangi (12-30-2018), Seedtick (12-24-2018), that_other_guy (12-31-2018), thompsms (04-16-2019), threesixesinarow (12-22-2018), Toolmaker51 (12-26-2018), UncleBob (12-28-2018), yves78 (12-25-2018)

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    You did it

    Thanks a lot Tony : 2 days ago, I was just thinking to build something similar in order to evaluate a radius.

    That's very nice to get an idea of your solution for that.

    I take also the opportunity of that reply, to thank you for your pdf explanation documents, always clears and usefuls.

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    tonyfoale (12-28-2018)

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    [email protected] tonyfoale's Avatar
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    Quote Originally Posted by yves78 View Post
    Thanks a lot Tony : 2 days ago, I was just thinking to build something similar in order to evaluate a radius.

    That's very nice to get an idea of your solution for that.

    I take also the opportunity of that reply, to thank you for your pdf explanation documents, always clears and usefuls.
    Glad that you find it useful. If you make something like it be sure to post it here.

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    Thanks, I've put this in the to do list for Winter.

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    Quote Originally Posted by NortonDommi View Post
    Thanks, I've put this in the to do list for Winter.
    WELL it's winter here, hint hint. Weeks and weeks worth...
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

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    Quote Originally Posted by tonyfoale View Post
    I recently posted about some reverse engineering that I needed to do to replicate some classic motorcycle crankcases at
    Height gauge addition.

    Continuing on from that I needed to measure some corner and other radii, there are many possibilities for such tasks, for example MichaelMoore recently posted his templates at
    A radius gauge

    This current post is about a set of radius gauges that I built using a digital gauge as the measuring element.

    I have put the full story in a PDF which can be seen and/or downloaded from:
    Tony's radius gauge
    I have also written a simple bit of software to perform radius calculations and that is linked in the PDF file. I will also add a video in the next few days.
    I can't recall anything on the market or DIY anything like it. Seems Tony, you knock two thirds the competition off before they get in the pit let alone on track. Said other way; He's lapping them right inside the shop?

    Further; Jon. Is there a HMT.net logo decal for Tony's machine? What an audience!
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

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    I have just enhanced the software to allow calculation of the curve radius and centre coordinates when the XY coordinates of three points on a curve are known.
    This is useful if you use the DRO on a milling machine to determine the coordinates of three points. This does not need the radius gauge described above.
    The link to the software is the same as that in the PDF RadiusGauge.pdf

  11. The Following User Says Thank You to tonyfoale For This Useful Post:

    PJs (12-26-2018)

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    I have not had time to edit the video that I promised so I have just uploaded a 3 minute unedited version of the most interesting part of the radius gauge construction.https://motochassis.com/FileDump/Rad...adiusGauge.wmv

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    Thanks tonyfoale! We've added your Radius Gauge to our Measuring and Marking category,
    as well as to your builder page: tonyfoale's Homemade Tools. Your receipt:




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    Jon
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    Congratulations tonyfoale - your Radius Gauge is the Homemade Tool of the Week!

    Another record-breaking week around here, with many excellent builds. This tool really stood out, and was especially well-documented.

    Some good picks from this week:

    Mini Lathe Slow Speed Feed by jjr2001
    Optical Punch by Canobi
    Bar Cutter by jealpaul
    Multifunction Scribe by Dimitris Polychronis
    Tall V Block by rossbotics
    Large Drill Bit Modification by Kovanca Polock
    Bandsaw Mount Modification by Steved53
    2x72 Belt Grinder by DanLins
    Disc Sander by Vyacheslav.Nevolya
    Riving Knife by Rorschach
    Simple Puller by liberal
    Hand Stamp Guide by rgsparber
    Turning Saw by threesixesinarow
    Bevel Guide by LastingBuild
    Extra Wide Chisel by Make Things
    Center Punch by Frontier Forge
    18650 Battery Charger by Lahis
    Plumbing Spanner Wrenches by garage nut
    Drain Pipe Indicator by garage nut
    Engraving Chisel by Frontier Forge
    Zero Clearance Insert by Rorschach
    Capacitor Tester by garage nut

    tonyfoale - we've added your tool entry to our All Homemade Tool of the Week winners post. And, you'll be receiving a $25 online gift card, in your choice of Amazon, PayPal, or bitcoin. Please PM me your current email address and gift card choice and I'll get it sent over right away.


    This is your 9th Homemade Tool of the Week win! One more and you'll join rossbotics and mklotz as a 10-Time Homemade Tool of the Week winner. Here are all of your winning tools:


  15. The Following User Says Thank You to Jon For This Useful Post:

    benkeller3 (12-29-2018)

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