We are a marine canvas company, and use Rhino4 to edit and flatten our 2d and 3d patterns/frames, digitized using a Prodim. We then import into Rhino to flatten to prepare for the cutting process. Just wondering if someone can advise if we are going about this the most efficient and effective way, as it takes a few days and more often than not, the finished product is not accurate.
Please be gentle, we only do the way we have been shown, and do not understand why we do it this way
We import the digitized 3d pattern/structure from the prodim into Rhino
Creating 4 layers
- External (red)
- Internal (dark green)
- Surface (cyan)
- Line (dark blue)
highlight all, group together
setting current layer to ‘‘external’’, we “trace over” the digitised lines using “Polyline”& “Line through curve”
In perspective view we ensure we have not picked up any “Z” lines, if we have, control points on and move them appropriately
once entire piece has been “traced”, we copy the whole thing, and delete the “group” from the copied piece, leaving us with the traced lines only.
with control points on, we smooth the lines out, being careful as not to alter the shape digitized.
Once happy we join lines to create 4 sides
current layer “surface” we use sweep to rails, using the shaded viewpoint to see where there is more shape (also checking we have split using copy in the correct area)
if there are any internal markings, we change to the “internal” layer and project these to the surface
changing to layer “line” now we use smash (changing settings to explode: no label: yes)
when they have been smashed, we rotate/or mirror according to labelling (if we needed to split using copy we then join back together using orient)
then we use Curve-Curve from object-duplicate boarder - deleting the surface
we then group the remaining, export as dxf and place into Accumark for pattern processing, marker creations and finally cutting.
I think the biggest issue is that we are having to either split the big piece too many times to ensure the most accurate flat finished piece and its all abit trial and error, it also takes a lot longer than preferred to go from field to cutting
I’ve been looking into plug ins that look to eliminate the process of splitting, (the one that looks most appropriate is “Exact Flat” but thought we might just see if we are utilizing Rhino the correct way, or is it the process we take that is the issue.
I am trying to re learn after being out for about 5 years, and the person teaching me isn’t sure why we do it this way, and said its more or less, a lot of trial and error. Surely not!
Thank you in advance for any help/advice! And apologies if this is hard to understand, I am doing the best I can!
Kind Warm Regards