Good morning
I am a brand new user with the romer arm. Could any one direct me on where to obtain the information I need to get started with a base alignment? Please and thank you.
Since the alignments differ from part to part, there really is no "general" approach.
Depending on how you "do it" with a CAD model (select/measure the features from the CAD and then directly to best-fit) you WILL have to do some manual work.
If you could post a snippet of the drawing or something I am sure you can get much better answers.
The generic method goes something like this (plane and three holes):
Measure the plane.
Correct the theoreticals.
Primary alignment on the plane and maybe an origin.
Measure the three holes.
Correct the theoreticals for each hole (both coords and vector) according to the drawing.
2D-best fit alignment using the plane axis (you should have aligned the plane in this axis) as restriction plane and select the three holes.
Hit calculate then create.
That's a terrific place to start. I couldn't post a snippet for proprietary reasons. Is there a a good resource out there to explain this process step by step?? I am literally a new user to this software. I am not without knowledge as a whole. I understand cartesian geometry, gd&t and have used other similar software controls. But i am not sure about the process/idea of the second step in your reply "correct the theoreticals". Would you know a good resource where i can learn that idea??
Well, when you create the features, they will have theoretical values and measured values. At the point of creation, these will be the same (both THEO and MEAS). You will need to correct/edit the THEO's so they match the print - or what they should be.
Do you have CAD ? (I believe you don't because of the title, but I'm not sure...)
You can construct an alignment step by step, but it depends on the type of part.
For a cubic part, you can measure 3 planes (3 hits by plane in a first time is enough), then construct a corner point from them and align :level Z on PL1, rotate X PL2 around Z, origin on corner point.
By this way, you just create an alignment to measure in the part alignment, and not in the arm one.
Then, you can measure more hits on each surface to be dimensionned.
For a cylindrical part, measure some hits on the cylinder (6 min on 2 levels) level Z on it and origin XY on it. Find a feature to get the rotation (a hole on a side, a pin...) to fix the alignment.
It's important to make the difference between the part alignment that you use to "say to the arm" where is the part, and the datums alignment that you use to dimension.
They can be "the same", but it's not necessary. -Just a thought...
I do not have access to the solid model. Yes some training would be good. Where can i get the resources to learn? Like a step-by-step guide or training video on aligning parts with the romer arm.
