This is an ad, so not sure in what stage of the process Rhino was used, but they use it in their PR at least:
Pretty cool machine, though.
Wow, impressive process.
New to me.
This is really cool. “Desktop” sheet metal shaper…
nothing fancy but I was at my buddy’s shop this morning where he’s freshening a roots supercharged 351 “clevor” (351 windsor with cleveland heads) he built some years ago, and for which I made intake spacers using rhino
iirc it is 408 cubic inches and makes around 750hp on pump gas; that was a bit much for the stock block to handle for long, so it is now getting a dart block
I 3d scanned one of those, to build a similar setup with fuel injection, but the project got mothballed for like 18yrs and counting.
Look at that, Rhino has an appearance in the new MacBook Pro announcement video! The part where the seewall is featured. Upon seeing the seewall facade, I immediately though that this is classic grasshopper work and then indeed, Rhino was shown on the Macbook Pro screen. Here is the link to the video:
Congratulations to Rhino and the McNeel team!
Carbon road bike for the Chinese market. Some initial engineering work done in SolidWorks, but all the surfacing in Rhino.
Electric skateboard rims.
Designed in Rhino/Grasshopper, finishing touches and toolpaths created in Fusion 360, cut from 6061 aluminium on Haas Mini Mill (3 axis).
First operation completed using chuck, second operation in soft jaws.
This design had edges that need deburring with the Fusion 360 deburr toolpath, however I do not have the machining extension which enables this. Instead I created a GH script to calculate the correct offset path for the tool to trace in Fusion which seems to work well with the necked ballnose endmill.
After the anodising has been done, they go back in the mill to cut the bearing bores to tolerance. Using the dial indicator here to make sure the rim is aligned perfectly to get the bores exactly through the center line of the rim.
All that’s left is so to put all the components together with M4 bolts. I think the design really suits the application… finessing the details in Grasshopper was the best way to get the angles and curves I wanted. I can also easily adjust the number of teeth in the pulley for bigger tires and belts.
I have a lot of love for RH/GH in my workflow! Here’s the final results:
Great work! I like the design of the rim, which is quite ready to be used in sports cars, too. Showing the whole process briefly is a nice touch!
With regards to the final pass to deburr the sharp edges, in the past I used a simple trick to make it easier in RhinoCAM. I simply created a small chamfer there and traced a curve along its middle. Then I used line tracing (forgot the exact name of the command) in RhinoCAM so that the ball mill tip will follow the curve along the chamfer.
Wider chamfers in complex areas and with variable orientation (not horizontal) needed some extra offset at either side of the middle curve, so they could be made with 3 simple passes (left, middle, right).
Thank you for the explanation of your method to deburring edges, if you still have access to RhinoCAM I’d love to see this in action.
In Fusion 360 I am using the trace toolpath, which puts the tool centrepoint on the line to be traced. In the image above, that line is shown in green. The pipe helps show the sliver of edge which gets removed, which is helpful to see before exporting the blue surface in to Fusion. I am yet to find a better way of getting a 3d curve in to Fusion, picking the imported surface edge works for now.
Here’s the GH script if anyone wants to have a play with it.
Deburr toolpath Rims.gh (39.0 KB)
-Mike
You put a lot of effort to make this stick work for your application. Things like this make the thread so interesting. Thank you for sharing it!
As for your question, long time ago (somewhere between 2011-2012) I used to be a CNC-machinist in a company, so I have no recent experience with the newer RhinoCAM releases. Back at the time RhinoCAM crashed a lot and was very sensitive to the complexity of the models. Luckily, it was possible to use different model for each operation, so I ran the roughing operations with a simplified model with a minimum amount of fillets (if any), then the final pass with a finished model consisting all the details.
Another trick to force deburring along hard edges was to set a fake radius of the tool. For example, if the tool’s real ball radius was 6 mm and I wanted to make a 0,4 mm deburring, I set 5,6 mm as the tool radius. Then the program would make the toolpath 0,4 mm closer than in reality, hence the extra material carved by the final pass.
I used the same trick to speed up the roughing, because the offset calculations of the stock material took way too much memory. Instead of using a 1 mm offset, I set the tool’s radius to be 1 mm greater, so the roughing operation would leave 1 mm extra material around the real part.
Nice video of the design, construction of the Paprec Arkéa IMOCA of Yoann Richomme, 2nd of Vendée Globe
749, at last, a question I can relate to, and answer. Wanting to create a bird’s wing, I made the profile, scaled it, and lofted a series. Then I learned to just make the first and last profile, and sweep one rail:
Here’s the RMX 444 which I’ve done a fair amount of concept work, interior work and renderings for over the last year or so. More photos and a video on in the Boating NZ article.
Is the Aeromaster v8 Rally Raid also done with Rhino?