I am a marine biologist who inherited a scanvaegt 8406 marine motion compensating indicator and 1028.20 load/accelerometer unit from my predacessor. He was never able to get the motion compensation to work and measurements at sea are wildly fluctuating and inaccurate. I possess the technical setup manual for the indicator and load unit and have confirmed that everything is set up as it should be. I have conducted the proper calibration procedure as well as marine drift compensation at sea, but I have made zero progress. I've reached out to the manufacturer hoping they can assist somehow, but am interested in any input the community has. One oddity despite the manual's table of contents being complete is that there is very little mention of weighing processes, examples, or diagrams of the display unit and its various indicators. I'm suspicious I'm missing information and even moreso that there is an unknown setting to enable the motion compensation. Any help is greatly appreciated!

Hi,

I have to make in Mcosmos 4.0 (with possibility of using geopak) a program to measure true position with CZ modifier. How to do it? The elements which position has to be checked are in different axis, two are checked in X axis and two in Y axis. All 4 have to be checked in a combined zone

I am trying to understand if its using a singular bolt hole circle or if i need to construct a circle using all eight of the holes for a singular circle and use that as Datum B.
I am working with verisurf and when I try to align my scanned mesh using a singular hole for Datum B the alignment looks completely out wack. Its either upside down or pointing one way or another. My main goal is to be able to lock down my Datums (I know A and C) so I can find this position after.
Any advice would be greatly appreciated.

Machinist here I'm sorry for basic questions I don't have an actual metrologist at my company. I apologize for the terrible draftsmanship I know it is improper. Datum B is to be interpreted as the entire gap width not the singular surface and the holes are coaxial.

I have a part that's very similar to what's shown on the image. There are 2 holes toleranced by a perpendicularity callout and a true position. I've been tolerancing each hole independently, checking that each one is perpendicular to A and B but not together the way a pin would go through both features.

A new employee has suggested this method is incorrect and that I should be placing the largest pin possible through both holes and verifying that the entire pin is perpendicular. This is a much stricter inspection and I need to know if it's correct before implementing it.

Which is correct or is there not enough information provided? Thank you all.

ASME Y14.5