[SH...] Posted March 9, 2022 Share Posted March 9, 2022 Please sign in to view this quote. Thanks, that pro Max has some problem, Indian Zeiss engineers can't find it out, finally they did video conferencing from Germany now it is ok . This model is going to be a big hit, i think.. Link to comment Share on other sites More sharing options...
[Ro...] Posted March 9, 2022 Share Posted March 9, 2022 Please sign in to view this quote. Actually right at this very moment im using a glue gun to "stick" a tall but lopsided part up against some blocks. I dont use it very often, maybe 1 or 2 times per month, but it always stays close. This particular part will stand up by itself, but im afraid that probing pressure will cause it to rock, so i just need something to steady the part. If you know of an aluminum magnet supplier, let me know.glue1.PNGglue2.PNG Link to comment Share on other sites More sharing options...
[SH...] Posted March 9, 2022 Share Posted March 9, 2022 Glue gun is very useful for holding the jobs, yes it may effect temperature compensation, proper socking will nullify it. Link to comment Share on other sites More sharing options...
[Ri...] Posted March 11, 2022 Share Posted March 11, 2022 I've used Inspection Arsenal for many many years. So when I spotted your Master Sphere sitting on an Aluminum plate it reminded me of when I attempted to do that. What I found, and coincidently a Zeiss Engineer also determined the same as I had. It was unstable for qualifying probes. I had a program to automate stylus qualifying, it would take almost two hours to qualify the rack of probes. After, we started noticing deviations between styli running the same part. Testing revealed a probability of the aluminum plate expansion/contraction caused deviations during qualification. Placing the Master Sphere bolted to the granite without the aluminum plate and all the issues went away. I was able to repeat this issue many times. A Zeiss engineer discovered this on another of our CMMs while calibrating, we removed the aluminum plate and the issue went away.contura 4.jpeg Link to comment Share on other sites More sharing options...
[SH...] Posted March 11, 2022 Share Posted March 11, 2022 Please sign in to view this quote. How it effects the qualification?? Hard to believe... Link to comment Share on other sites More sharing options...
[Ri...] Posted March 14, 2022 Share Posted March 14, 2022 Temperature change. Although the lab has its own environment we have parts and people moving in and out all the time. I witnessed it. A Zeiss tech witnessed it. Link to comment Share on other sites More sharing options...
[Ow...] Posted March 15, 2022 Share Posted March 15, 2022 I guess I'm guilty of this myself. I routinely calibrate probes to less than <0.001mm STD and see little to zero variation in an environment kept between 68-69° fahrenheit and (update I just checked it - generally less than 0.002mm in reference sphere position change). I suppose it would all be tied to how accurate you want your CMM to be correlating to the tightest accuracy required in your facility. Up until about 5 years ago, Zeiss themselves used aluminum probe extensions in great quantities. The thermal expansion coefficient of aluminum is significant (12.9_10-6 in/(in oF) no doubt but, because most professionally sold CMM fixture plates (R&R, Rayco, ect) are hard-coat anodized, I wonder if this procedure reduces the thermal expansion? Link to comment Share on other sites More sharing options...
[Er...] Posted March 21, 2022 Share Posted March 21, 2022 Please sign in to view this quote. Tom, How tall is the Machine with the lower rack. Management is all bent out of shape because our old Contura G2 work horse is down for calibration. They asked me to get a quote for a new Contura. Problem is the cealing is only 107 inches tall. My guess they would either have to build another space, or raise the roof. This will be interesting. Wish me luck I get another machine. Link to comment Share on other sites More sharing options...
[To...] Posted March 21, 2022 Share Posted March 21, 2022 Please sign in to view this quote. Not sure what you mean "with the lower rack" The overall height for the the 9/12/8 z is 3060mm (120.5") This is the same for all of the 800mm Z machines. However, Zeiss came out with a 600mm Z version, so I would assume the height is 200mm shorter making it 2860mm (112.6") I don't have the literature for the newer version models. The 7/7/6 and 7/10/6 models are 2658 (104.65") Link to comment Share on other sites More sharing options...
[Er...] Posted March 21, 2022 Share Posted March 21, 2022 Please sign in to view this quote. I meant with the lower table. I accidentally said rack. We have a 10/12/6 Contura G2 that sits on the lower stand that Zeiss used to make. I guess this is not available anymore. We want to keep as close to similar to these dimensions so everything we have running on this CMM could be used on the new machine as well. We are getting quotes for the machine so we will see what happens. Thanks. Link to comment Share on other sites More sharing options...
[Ri...] Posted March 21, 2022 Share Posted March 21, 2022 Here are the specs of the Gen5. It is different than the previous versions. Link to comment Share on other sites More sharing options...
[To...] Posted March 22, 2022 Share Posted March 22, 2022 Please sign in to view this quote. Thanks Richard. My assumption that the 9/12/6 would be 200mm shorter than a 9/12/8 was incorrect. It makes sense that it would be closer to the height of a 7/7/6 or 7/10/6. Link to comment Share on other sites More sharing options...
[Ri...] Posted March 22, 2022 Share Posted March 22, 2022 Please sign in to view this quote. Sorry. I was talking about where the granite is. The Gen 5 is 150mm lower than previous generations. Link to comment Share on other sites More sharing options...
[To...] Posted March 22, 2022 Share Posted March 22, 2022 Please sign in to view this quote. No worries. Isn't he worried about the overall height? Link to comment Share on other sites More sharing options...
[Aa...] Posted November 18, 2022 Share Posted November 18, 2022 Has anyone had trouble switching heads? I am on a Contura with an RDS and we just had a Vast XT installed. I noticed that the CMM gets angry when I switch heads, unless I shut everything down first. Is there a way to change the head without shutting down the whole machine? Thanks in advance! Link to comment Share on other sites More sharing options...
[Ri...] Posted November 19, 2022 Share Posted November 19, 2022 ALUFIX, expensive but really applicable to any setup. Link to comment Share on other sites More sharing options...
[To...] Posted November 19, 2022 Share Posted November 19, 2022 Please sign in to view this quote. According to my sources at Zeiss, it is not recommended to swap sensors with power on. Link to comment Share on other sites More sharing options...
[Je...] Posted November 21, 2022 Share Posted November 21, 2022 Please sign in to view this quote. . I have friends down the road from me who are using a new Brown & Sharpe Global that supposedly switches sensors in CNC mode mid-measurement without needing recalibration of probes. This claim sounds audacious to me, and I wonder how accurate it is. If true, it would certainly be a leg up on multi-sensor inspection. . Link to comment Share on other sites More sharing options...
[Aa...] Posted November 22, 2022 Share Posted November 22, 2022 Please sign in to view this quote. Thanks Tom! I just installed service pack 7.4.04. I am going to play around with it tonight, and if anything changes, I will post it here. Link to comment Share on other sites More sharing options...
[Je...] Posted November 22, 2022 Share Posted November 22, 2022 You should not have to power the machine down in my experience yet I am not sure if I have conducted this on a Contura 6206 specifically. Accuras, Prismos and Centermax only. Turn off the drives, swap the sensors, turn on drives and change machine tab connection. No need to power off as far as I know. I will investigate and if I am incorrect I will relay that information. Link to comment Share on other sites More sharing options...
[To...] Posted November 22, 2022 Share Posted November 22, 2022 Please sign in to view this quote. Jeffrey, you are correct. I found this from the BA_CONTURA_REV2_0_en.pdf that came with our machine. I extracted the pages and attached below.Mounting_Changing Sensors.pdf Link to comment Share on other sites More sharing options...
[Aa...] Posted February 17, 2023 Share Posted February 17, 2023 UPDATE: I found a work around to powering off the CMM before swapping VAST/RDS heads... Switching to the CMM to "simulation" before swapping heads seems to be working with no issues. Now I don't need to power down the machine for every head swap. Cheers! Link to comment Share on other sites More sharing options...
[Da...] Posted February 17, 2023 Share Posted February 17, 2023 Please sign in to view this quote. Thanks. I'm thinking instead of switching to simulation, wouldn't be the same as just using Re-produce link button? Link to comment Share on other sites More sharing options...
[To...] Posted February 17, 2023 Share Posted February 17, 2023 Please sign in to view this quote. Not sure how I missed your post, pot calling kettle black...LOL Link to comment Share on other sites More sharing options...
[Cl...] Posted February 17, 2023 Author Share Posted February 17, 2023 Please sign in to view this quote. I remember those days (20 years ago). Hot glue gun to fixture F-22 parts, non-prismatic and hard to hold on to. Link to comment Share on other sites More sharing options...
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