How to use the DER EE DE-5000 guard line TL-23 to measure high impedance components such as small capacitance 0402, and 0201, capacitors?

As the title says - what do you predict the future looks like for human dimensional quality inspectors using manual gauging (particularly for aerospace OEMs)? With the creation of Keyence instant measuring vision systems, and CMM’s with auto-loaders are humans in this role inevitably going to be completely replaced, or will their roles shift and if so what does their new role in manufacturing quality look like?

Reason I ask is because I’m a former dimensional inspector at OEM and MROs and recently transitioned to the NDT side of quality within the aerospace industry hoping it to be more future proof of a job + higher paying though I miss it.

What is the difference in using a capacitance meter in Cs or Cp mode to measure an off-circuit ex situ capacitor? (series and parallel capacitance I assume).

Hello,
I am working on a program sent from our customer who wants us to use their program to verify dimensions as their are discrepancies in our results. They have a different fixture set up then ours, so we have difference of alignment.
I have a query about how can I rotate the alignment of the tube to match to our alignment, so it can also match all the existing features as well. Since, I am using special feature from base alignment (used rotation by angle option), all the hole features are keeping their original positions.
Is there any way, I can rotate the orientation while also moving the features along with it.

https://preview.redd.it/lrk42awim42e1.png?width=1032&format=png&auto=webp&s=98a9060af959097ced2c7c7c8f24bbafa428ddc9

https://preview.redd.it/hc2wbxhkm42e1.png?width=878&format=png&auto=webp&s=4c3c6d2bad3a10859d1a4f8ac22b7d8d26727505

Processing img g97bicfmm42e1...

Thanks.

We are planning to buy a high end photogrammetry equipment.

We have narrowed down to Hexagon - Aicon and V-STARS Photogrammetry.

1. Does anyone know of more such companies for very high accuracy photogrammetry?

2. practically ALL the papers that I could find online, mention V-STARS, and I cannot find any comparative tests between these two photogrammetry equipment. Does anyone have a comparison between Aicon and V-STARS?

3. Aicon is VDI compliant, but the test is carried out on a relatively small structure, and the VDI standard completely ignores system accuracy on large volumes, say 20m x 20m x 20m. I found an old brochure for Aicon online, before they were bought over by Hexagon, and it states that the max volume is 10m3. This line is removed from the Hexagon brochures. Would 10m3 mean 10mx10mx10m? Or does it mean approx. 2mx2mx2m?

4. Additionally, the brochures mention 2um measurement error, with a fine print clarification that mentions "MPE" 15um+15um per meter. Does anyone know about the maximum size of object for Hexagon photogrammetry and the machine accuracy for large volumes?

Because this software is ass. So old, so clunky, so user-unfriendly. (We have version 4, but, as far as I know, version 5 is only marginally better.)

What is the best way to do a leapfrog in an MgProg program? We have faro quantum max arms and are having difficulties trying to inspect large parts. We are able to do a leap when running a dmis program but have only been shown how to write programs in MgProg. Our entire CMM department is basically self taught. Thanks for any advice.

Hi, I have different probes, but two of them classification running scanning and another one a single points. Where I can change this settings?

Hey everyone,

I work in a small company out of CT and I'm looking to get 2 of my inspectors trained on our Hexagon CMM.

Does anyone know of any companies that do training on site(my company)?

I've found ATS, just waiting on a quote. I can't seem to find anything on the Hexagon Website that isn't virtual or classroom..

I've personally taken 3 Calypso classes on site where Zeiss came to our building for 3 weeks. Can't seem to find one for pc-dmis...

Thanks!

Hey everyone,

I work in a small company out of CT and I'm looking to get 2 of my inspectors trained on our Hexagon CMM.

Does anyone know of any companies that do training on site(my company)?

I've found ATS, just waiting on a quote. I can't seem to find anything on the Hexagon Website that isn't virtual or classroom..

I've personally taken 3 Calypso classes on site where Zeiss came to our building for 3 weeks. Can't seem to find one for pc-dmis...

Thanks!

Hi All,

I am quite confused by what classes as a transition fit in a numerical sense.

It is described as a very slight interference or clearance, but what constitutes “slight” here? For example 10 microns vs 50 microns of interference between a hole and shaft - would these both be interference fits?

I cannot seem to find any clarification on this and am quite confused. Any help would be appreciated.

We have a workshop specializing in machining large shafts. We work according to ISO standards. We need to verify the geometric tolerance of total radial runout, and my question is as follows:

We always assume the reference of a geometrical tolerance to be perfect, but if the part we take as the reference has any form or positional error once machined, would this error add to the total radial runout we measure?

Thanks in advance.

Hi, everyone. I'm using optics with backlight to measure the radius of a part. However, due to poor fixture design, the rotation of the part is not stable. Because of this, sometimes the side of the part is visible. This causes the measurement to be taken on the side rather than the top edge of the part. This part is made out of liquid silicone rubber, so clamping it in the fixture to help set rotation is not possible. We also use a 64 station fixture, so it wouldn't be viable to manually set the rotation each time. I have thought about manually setting the grey value. This way the measurement bypasses the side of the part which is dark grey and hits the top edge of the part which will have a much lower grey value (almost black). Is this a viable solution? Does anyone have resources where I can learn more about setting the grey value? Thanks!

Are there any form tolerances for master gages (cylindricity, roundness etc.)?

I'm talking about setting masters for precision measurements.

Or does only rule 1 apply?

Hello, I am relatively new to PiWeb and am now responsible for creating the protocols for our company.

So far, I’ve managed well, but I haven’t found an ideal solution for the following problem.

We have components for which we’ve defined different measurement intervals for various dimensions. Some dimensions are checked on every part, while others are checked on every 3rd, 5th, or 9th part.

I considered linking this to a counter so that these measurements are called up automatically. However, there’s a problem: if the operator starts a measurement and the counter increments, but they abort the process, the loop would be disrupted. If this happens at the wrong interval, it would not be good.

Further issues that come to mind include, for example, if a 9th-part measurement is subject to mandatory correction, the loop wouldn’t notice and would simply continue counting, without prompting for the dimension at the next measurement.

The same issue arises with a tool change. An automatic counter wouldn’t account for this either.

Has anyone experienced a similar problem in their company and found a solution?

I’d prefer not to have operators count the parts themselves and use buttons to manually call up the correct measurement. An automated system that recognizes when a measurement was incorrect and then specifically requests this measurement again next time would be ideal.

For tool changes, I could just apply a filter to the measurement values and link the tools so the operator can manually call them up.

Thanks in advance!

Hi everyone, I use Zeiss Calipso on an O-inspect 5/4/3.

We only use visual inspection, but I think it's way too slow. When I'm at 150x zoom (I think), I see 20/25 holes (<0.5 mm), my problem is that I take too long to measure each hole. (I've seen a Micro-view and it's about 0.1-0.2 seconds per measurement) and with this o-inspect it's about 1 second per hole. is it like that or can I modify something to increase it?

Thanks for your reply.

When is it approprite to use either "Fit to Datums" or "Perpendicular to Centerline" in Legacy True Positioning? Seleting "fit to datums" does seem to change the measurements.

How would I measure hole deformation of no more than 0.5mm? It is a thru hole.

I figure use cylindrical of 0.5mm would that be correct?

Does anyone know of any good books or videos for PC-DMIS?
I am used to polyworks for 10 years and polyworks is fantastic. It does probe compensations perfectly. PC-DMIS seems to be a mess and disorganized. No real feature tree and very glitchy. The Circle/intersect function is not working with a plane.
Then I think I got the right measurements but it is obvious the software did not do the proper compensation of the circle for the 6mm probe. Hole is almost exactly 6mm smaller than when I measure with calipers like it built the circles from the center of the 6mm probe.
I cant even imagine why a software would not compensate for the ball size properly.

My first goal was to find the centerline diameter of 3 holes in a circular pattern. It seems the hole centerpoints are correct so the centerline is correct, but it is bugging me the holes are about 6mm smaller than it should have measured.

Hallo, ich bin relativ neu im Thema PiWeb und soll jetzt für unsere Firma die Protokolle schreiben etc.

Soweit komme ich gut klar, allerding finde ich keine ideale Lösung für folgendes Problem.

Wir haben Bauteile an denen wir für unterschiedliche Maße einen Messintervall festgelegt haben. Manche Maße sind bei jedem Teil zu Prüfen ander bei jedem 3. , 5. , oder 9. Teil.

Ich hatte überlegt dies an einen Zähler zu knüpfen damit diese dann automatisch aufgerufen werden. Allerding hätte man dann das Problem wenn der Werker eine Messung startet und der Zähler hoch zählt, er diese Abbricht dann würde der Loop durcheinander kommen. Sollte das bei dem )er Intervall passieren dann wäre das ja nicht gut.

Weiter Probleme die mir direkt einfallen sind, ist das 9er Maß z.b. Korrekturpflichtig, würde der Loop das ja auch nicht bemerken und einfach weiter zählen, ihm aber nicht bei der nächsten Messung das Maß abfragen.

Das gleiche passiert auch bei einem Werkzeugwechsel, dies würde ein Automatischer Zähler in der Art auch nicht abdecken.

Hat jemand ein ähnliches Problem bei sich in der Firma und eine Lösung gefunden?

Ich würde ungern den Werkern selber die Teile mitzählen lassen und dann Per Buttons die richtige Messung aufrufen lassen. Ein Automatisches system was erkennt wenn eine Messung falsch war und dann diese Spezielle Messung beim nächstem mal wieder Abfragt wäre ideal.

Für die Werkzeuge könnte ich ja einfach einen Filter auf die Messwerte legen und die Werkzeuge hinterlegen, diese kann er dann händisch aufrufen.

Danke schonmal :D

Hey Guys and Gals,

We are looking at picking up a 3D scanner to primarily serve as a reverse engineering tool to go from scan to CAD. Our secondary (more longer term use) would be to use it as a CMM/ article inspection in lieu of a traditional CMM machine if possible in an ISO 9100 environment. Our parts are typically no bigger than a basketball, and are often much smaller. Occasionally, we will have a long cylinder a few feet in length but nothing beyond that. We have been eyeing Creaform's Handyscan Black series, but primarily have been looking at used models since they can be had sub 55k vs the 100k+ they are new. If we could get by with something less expensive we are all ears, but it seems with my limited research they seem to be the gold standard. If Creaform is the way to go, I can get a black elite unit for around 50k that has had a recent calibration but is a few years old. I see now that they have the Black + line, but can't find any of those used and am unsure if that would be necessary for our use case.

We would also be open to getting two units, one now for our scan to CAD work flow and one down the road to function as a CMM if that is a better option. Normally I don't mind buying used equipment for our facility, but I view this more as tech and less as equipment, so don't want to buy something that is obsolete and won't be supported in a few years either. On the other hand, we don't want to buy new and take a 50% + depreciation hit after a few years.

Thanks everyone!

I know of lists existing for multimeters and other test equipment, e.g., this one https://old.reddit.com/r/PrintedCircuitBoard/wiki/tools#wiki_multimeter circulating around Reddit. Is there also such a thing for Metrology / this Reddit channel in general? I just joined and am curious :)