digitizer probe: file uploaded
Posted by
Graham Stabler
on 2003-09-24 16:50:49 UTC
I have uploaded the file digitizer_result.jpg to the files section.
It shows my homemade digitizer probe mentioned a few posts ago and
the results of some digitizing.
I wanted something small, easy to recognise to digitize and the
raised text on this spanner seemed to fit nicely.
The scan was over a 6mm X 10mm area with a 0.2mm grid size.
The computerized results are from Rhino. Here is my process:
Open the surface .dat file produced by TurboCNC ($20 and excellent)
in excel as a tab delimited file. Remove the header and the X, Y and
Z columns. i.e. the format used is X 1.0 Y 2.0 Z 4.0 you need to
have 1.0 2.0 4.0 with just tabs between. So just remove the columns
with the letters.
Copy the data and paste into notepad, save as a .txt
Start Rhino and import as a point file.
To get at the points select the cloud and use the explode command to
seperate them. The grid type view was created from poly lines using
create polyline from points. This was done in both directions. It
saves time to do this from the side views as there is less dragging.
The rendered version was done by lofting a surface over the lines but
in one direction only. I can't do rendering so it looks a little
tatty. I should also mention that the lofting often fell down and it
was done in sections.
cheers,
Graham Stabler
It shows my homemade digitizer probe mentioned a few posts ago and
the results of some digitizing.
I wanted something small, easy to recognise to digitize and the
raised text on this spanner seemed to fit nicely.
The scan was over a 6mm X 10mm area with a 0.2mm grid size.
The computerized results are from Rhino. Here is my process:
Open the surface .dat file produced by TurboCNC ($20 and excellent)
in excel as a tab delimited file. Remove the header and the X, Y and
Z columns. i.e. the format used is X 1.0 Y 2.0 Z 4.0 you need to
have 1.0 2.0 4.0 with just tabs between. So just remove the columns
with the letters.
Copy the data and paste into notepad, save as a .txt
Start Rhino and import as a point file.
To get at the points select the cloud and use the explode command to
seperate them. The grid type view was created from poly lines using
create polyline from points. This was done in both directions. It
saves time to do this from the side views as there is less dragging.
The rendered version was done by lofting a surface over the lines but
in one direction only. I can't do rendering so it looks a little
tatty. I should also mention that the lofting often fell down and it
was done in sections.
cheers,
Graham Stabler