[La...] Posted January 17, 2023 Share Posted January 17, 2023 We are working on a project that we need to use Carbon Fiber M5 extensions to save on stylus system weight. I don't want to limit the use of these extensions to just this part, so I am looking at getting 120mm extensions, as this project calls for being able to measure past both ends of the table. I am pricing the extensions from the sources we have purchased stylii and/or extensions from before, Zeiss, Q-Mark, and itp. Anyone have experience with CF extensions from all three suppliers? Thank you for your input! Link to comment https://qualityforum.zeiss.com/topic/8860-carbon-fiber-extensions/ Share on other sites More sharing options...
[Ri...] Posted January 17, 2023 Share Posted January 17, 2023 I have used all three, and when it comes to carbon fiber, the ThermoFit extensions from Zeiss are hands down the best. Link to comment https://qualityforum.zeiss.com/topic/8860-carbon-fiber-extensions/#findComment-40080 Share on other sites More sharing options...
[Je...] Posted January 17, 2023 Share Posted January 17, 2023 Please sign in to view this quote. . I agree with Richard on this. Zeiss Reach CFX are the best available. The upfront expense is worth the certainty they provide. . . Link to comment https://qualityforum.zeiss.com/topic/8860-carbon-fiber-extensions/#findComment-40082 Share on other sites More sharing options...
[Th...] Posted January 17, 2023 Share Posted January 17, 2023 Please sign in to view this quote. In general, or just the 20mm CFX 5 that you have in your picture? Those cost a lot more than any of the CFX 1 extensions that Zeiss claims are adequate for machines like the Contura. Link to comment https://qualityforum.zeiss.com/topic/8860-carbon-fiber-extensions/#findComment-40084 Share on other sites More sharing options...
[Je...] Posted January 18, 2023 Share Posted January 18, 2023 Please sign in to view this quote. . It depends on the application. We have to verify .000050", so we don't want to spend microns of our uncertainty budget on thermal expansion. Link to comment https://qualityforum.zeiss.com/topic/8860-carbon-fiber-extensions/#findComment-40086 Share on other sites More sharing options...
[To...] Posted January 18, 2023 Share Posted January 18, 2023 Please sign in to view this quote. what is your environment temperature like? Link to comment https://qualityforum.zeiss.com/topic/8860-carbon-fiber-extensions/#findComment-40088 Share on other sites More sharing options...
[Je...] Posted January 18, 2023 Share Posted January 18, 2023 Please sign in to view this quote. Better than it could be, but not as good as it should be 🤣 Link to comment https://qualityforum.zeiss.com/topic/8860-carbon-fiber-extensions/#findComment-40090 Share on other sites More sharing options...
[Ke...] Posted January 18, 2023 Share Posted January 18, 2023 Larry, How tight are your tolerances (for this project as well as in general)? With regards to whether CFX 3 or 5 is right for you, your best bet may be to discuss with our team (you can message them in the chat on the webshop-see attached). However, if you have a bit of space in your tolerances, and want flexibility with regards to extensions, you may be able to combine extensions to meet the length you need instead of ordering a single long extension-for example maybe you can get a 40mm and an 80mm and use them together to reach your 120mm length for this project, but have the ability to combine them in different combinations in the future. I've generally found that combining 2 extensions is sufficiently rigid for all but the tightest tolerances, and for some applications have ]even gotten away with combining 3. [attachment=0]WebshopChat.jpg[/attachmentWebshopChat.jpg Link to comment https://qualityforum.zeiss.com/topic/8860-carbon-fiber-extensions/#findComment-40092 Share on other sites More sharing options...
[Ri...] Posted January 18, 2023 Share Posted January 18, 2023 Please sign in to view this quote. The CFX 1 replaced the aluminum extensions. They are OK. I have never tested the CFX 5, but I don't own an Ultra or Xenos. The CFX 3 are the original ThermoFit extensions. Used them for many years with great success. Link to comment https://qualityforum.zeiss.com/topic/8860-carbon-fiber-extensions/#findComment-40094 Share on other sites More sharing options...
[La...] Posted January 19, 2023 Author Share Posted January 19, 2023 Kevin, .002" is the tightest tolerance, .005" on a couple, then wide open tolerances. However I have to use the 500mm extension limit (for our Vast XT Gold Sensor), for Y+ and Y-, because the part will extend beyond each end of the table. Link to comment https://qualityforum.zeiss.com/topic/8860-carbon-fiber-extensions/#findComment-40096 Share on other sites More sharing options...
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