Any designer engineery types on here?
- Thread starter pete_mcc
- Start date
We use Solid Edge, and Solid Works for F.E.A.
but to be fair most 3d packages are similar
I'm still yet to find the package that will go straight to CNC, tis a myth
You import the solid model into a CAD/CAM package then create a tool path off it, its not as easy as pressing ONE "do it now" button
Interested to see where this goes
but to be fair most 3d packages are similar
I'm still yet to find the package that will go straight to CNC, tis a myth
You import the solid model into a CAD/CAM package then create a tool path off it, its not as easy as pressing ONE "do it now" button
Interested to see where this goes
NX6
I use Unigraphics - NX 6 at work. We get alot of very large components (65ft long) milled / CNC cut - NX has a CNC bolt on package, but you will pay through the nose for it and as Scrat say I doubt very much that it is a simple as pushing a button and watching the milling machine work it's magic!
I use Unigraphics - NX 6 at work. We get alot of very large components (65ft long) milled / CNC cut - NX has a CNC bolt on package, but you will pay through the nose for it and as Scrat say I doubt very much that it is a simple as pushing a button and watching the milling machine work it's magic!
Interesting to see who the CAD designers/ engineers are out there.
Sometime back, I briefly mentioned I had a scan project underway in this thread here- http://www.retrobike.co.uk/forum/viewto ... c&start=15
In Automotive design, one of the reverse engineering applications we use is called 'Photogrammetry scanning'. We use this to capture surface data ( normally from a clay surface ) and export the files into programs such as Alias, 3d studio and Icemsurf. This can also be exported into CAD/CAM packages to create a cutter path.
This scan of a crankset is part of a project to demonstrate the capabilities of our equipment ( we can't show our day to day stuff!! ). It also helps if your interested in retrobikes
The complete scan was completed in around 6hrs and was positioned and rendered using Alias software. The process does not damage the object in anyway... the powder spray wipes off!!
Would any of you be interested in taking this file into your own package and see what's achievable with it? ... basically I'm keen to see how outside suppliers/ engineers deal with our scan quality.
PM me if so.
Cheers,
Boy"O"boy
Sometime back, I briefly mentioned I had a scan project underway in this thread here- http://www.retrobike.co.uk/forum/viewto ... c&start=15
In Automotive design, one of the reverse engineering applications we use is called 'Photogrammetry scanning'. We use this to capture surface data ( normally from a clay surface ) and export the files into programs such as Alias, 3d studio and Icemsurf. This can also be exported into CAD/CAM packages to create a cutter path.
This scan of a crankset is part of a project to demonstrate the capabilities of our equipment ( we can't show our day to day stuff!! ). It also helps if your interested in retrobikes
The complete scan was completed in around 6hrs and was positioned and rendered using Alias software. The process does not damage the object in anyway... the powder spray wipes off!!
Would any of you be interested in taking this file into your own package and see what's achievable with it? ... basically I'm keen to see how outside suppliers/ engineers deal with our scan quality.
PM me if so.
Cheers,
Boy"O"boy
Attachments
Here's some more pics of the Photogrammetry process.
Pic. 1
The object to be scanned is covered with reference dots. The 'odd looking' stickers are coded markers. Scale bars laying along side allow the tritop program to determine the size of the object.
Pic. 2
The Coded markers and reference dots are photographed from a number of positions. The images are processed in the Tritop software and provide a digital file of the reference dots. This is accurate to 0.04mm of the actual object.
Pic.3
The reference dots are then scanned to capture the surface data. The scan works by measuring the contrast of the fringe projection ( black lines on surface) against the recognised reference dots.
Pic.4
The Finished scan is processed into polygons and exported in an stl. file.
Cheers,
Boy"O"boy
Pic. 1
The object to be scanned is covered with reference dots. The 'odd looking' stickers are coded markers. Scale bars laying along side allow the tritop program to determine the size of the object.
Pic. 2
The Coded markers and reference dots are photographed from a number of positions. The images are processed in the Tritop software and provide a digital file of the reference dots. This is accurate to 0.04mm of the actual object.
Pic.3
The reference dots are then scanned to capture the surface data. The scan works by measuring the contrast of the fringe projection ( black lines on surface) against the recognised reference dots.
Pic.4
The Finished scan is processed into polygons and exported in an stl. file.
Cheers,
Boy"O"boy
Attachments
Boy O Boy, Would love a copy of that file. I have used 3D scanners to produce cloud point models before, but never been overly impressed in the accuracy, everything I have tried has needed quite a lot of tidying up manually after scanning, to the point where it may have been quicker to model from scratch.
As for outputting to CNC directly, yes you do still need to do tool path files but most of this is automated and requires a check. Most of my output these days is using rapid prototyping, particulary keen on DMLS technology.
Would love to create a component in Titanium DMLSwith a honeycomb core.
As for outputting to CNC directly, yes you do still need to do tool path files but most of this is automated and requires a check. Most of my output these days is using rapid prototyping, particulary keen on DMLS technology.
Would love to create a component in Titanium DMLSwith a honeycomb core.
JeRkY":fxju7cgj said:
No problems, PM me your address and I'll get a copy to you. Stl. format ok for you? Each part has been scanned separately and is about 6MB.
This file will also need some cleaning.... The threads for example don't capture very well... although I have done my best to clean up as much of it in the original scan as possible.
cheers,
boy"O"boy
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:shock:
why was it that when I went to college to do my so called 'electrical & mechanical engineering' and 'Art & Design' courses, nobody mentioned any of this sort of thing.
I expect quality CNC parts very soon.
why was it that when I went to college to do my so called 'electrical & mechanical engineering' and 'Art & Design' courses, nobody mentioned any of this sort of thing.
I expect quality CNC parts very soon.
