[Ke...] Posted September 28, 2022 Share Posted September 28, 2022 Is there a company that provides custom styli probe tip diameters (dk)? I'm looking for 1.1547mm, which seems to be hard t come by. Link to comment Share on other sites More sharing options...
[Th...] Posted September 28, 2022 Share Posted September 28, 2022 Zeiss has forms for custom styli. So do Q-Mark, itp, and Renishaw. All of them let you specify the ball diameter. Link to comment Share on other sites More sharing options...
[Cl...] Posted September 28, 2022 Share Posted September 28, 2022 Please sign in to view this quote. Hi Keith. Can I ask why such an odd size ruby? Link to comment Share on other sites More sharing options...
[Ke...] Posted September 28, 2022 Author Share Posted September 28, 2022 Please sign in to view this quote. Screw threads: "over wire" measurements, etc. Link to comment Share on other sites More sharing options...
[Da...] Posted September 28, 2022 Share Posted September 28, 2022 Yeah Keith, What's up with that??? 🤣 Link to comment Share on other sites More sharing options...
[Da...] Posted September 28, 2022 Share Posted September 28, 2022 I was going to say , gear pitch diameter...I was close. Link to comment Share on other sites More sharing options...
[Mi...] Posted September 28, 2022 Share Posted September 28, 2022 We had ITP make us a 3.658mm probe, for an under pins measurement. it's not ruby - I'm not sure the material as it was before my time and we haven't needed replacements. Link to comment Share on other sites More sharing options...
[Ke...] Posted September 28, 2022 Author Share Posted September 28, 2022 Please sign in to view this quote. ITP is my goto. They initially responded with "is 1.4mm close enough"... and no. no it isn't. Why would I be so specific as to request a diameter at 4 decimal places, if I didn't need to? 🤣 They are now checking with their supplier 🙄 Link to comment Share on other sites More sharing options...
[DW...] Posted September 29, 2022 Share Posted September 29, 2022 +1 for QMark. Very responsive to my requests for a custom stylus. Link to comment Share on other sites More sharing options...
[Je...] Posted September 29, 2022 Share Posted September 29, 2022 Please sign in to view this quote. . Ask the same person at ITP for a quote on the 1.4mm stylus. When he quotes $185, ask him if $100 is close enough. . Link to comment Share on other sites More sharing options...
[Er...] Posted September 30, 2022 Share Posted September 30, 2022 A carbide ball may be less expensive than ruby. Link to comment Share on other sites More sharing options...
[Je...] Posted October 3, 2022 Share Posted October 3, 2022 I understand you may have a specific need for a stylus diameter of 1.1574 to simulate a m.o.w. result and that is a valid measurement method for what you are likely trying to acheive but is there a specific reason you could not use an off-the-shelf 1mm and create a formula in your reporting (read: Result Element or offset Curve points) to give you the proper reported size? I've done this many many times. It isn't feasible to create a custom stylus for every different thread pitch m.o.w. requirement. Measure your features and create an offset in the result element that adds the difference between measuring with the current stylus "getProbe("stylus","config").diameter vs an ideal 1.1574. (be sure to use the actual value instead of static value in case someone ever changes the stylus and its off by a small amount). This is especially true when going up to the 3-5mm range and down to the 0.3-0.6 range. Styli get swapped all the time for whatever is available when something breaks. Link to comment Share on other sites More sharing options...
[Ri...] Posted October 3, 2022 Share Posted October 3, 2022 If you can curve it (say with the O-Inspect or a really tiny probe), just use the Circle on Contour Feature. Then you can simulate the pin that you are looking for. Link to comment Share on other sites More sharing options...
[Ow...] Posted October 3, 2022 Share Posted October 3, 2022 A million ways to skin the cat but, because pitch is often considered a theoretical dimension and often difficult to get CMM vs hand gauge matches (especially on odd-tooth gears and over 3-pin thread measurement) don't forget that you can also use the result element to ask the dimensions measured with gauges (before the program closes) and print it out. Nobody likes introducing a hand check because it takes time and the cmm is setting idle until completed but, sometimes it's necessary. Link to comment Share on other sites More sharing options...
[Ke...] Posted October 5, 2022 Author Share Posted October 5, 2022 Please sign in to view this quote. Unfortunately we do not have an O-Inspect... The radius at the bottom of the thread is 0.8mm. What is the largest diameter tip you think I can get away with using to scan a curve? Link to comment Share on other sites More sharing options...
[Ri...] Posted October 5, 2022 Share Posted October 5, 2022 Please sign in to view this quote. Try either a 0.8mm or 1.0mm the bigger the better because typically threads are ROUGH. Measuring threads on a CMM is just tough in general. Link to comment Share on other sites More sharing options...
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