Hi everyone,
I’m relatively new to CNC and carbide create. I’m trying to make a bigger version of this tray.
I was able to make a rectangle and use node editor to pull out the top and bottom. I still need to do the sides. I made a duplicate so I can pocket the middle.
My question is: how can I make my file look like this with the chamfered edges? Do I need to do a second duplicate in the middle?
Tray for Mary.c2d (700 KB)
For the rounding see:
The 3D slope would have to be modeled in Carbide Create Pro — let us know if you have difficulty with that.
Oh ok. I was planning on getting the pro version. How do I model it there?
You would need the following geometries:
If you use Carbide Create 805 Pro it should be possible to only draw the first and the last and then derive the balance of the geometries by tracing the 3D model at various heights.
Hang on, moving over to the Tutorial area and we will walk through this with you there.
Starting with the base file we have an outline:
Checking the Job Setup we have a Stock Thickness of 1" which seems a bit low given the proportions of the original — a further concern is that the outline isn’t fully rounded as the photo shows, and I suspect the sharp points will complicate the 3D modeling.
A further consideration is that the slope of outside needs to be such that it can be cut with tooling which one has on-hand — too near to vertical and one would need a “long reach” tool.
Start by drawing a circle:
Center it:
Scale it to match, clearing the checkbox for “Keep Proportions”:
Done
Since this isn’t as rounded as we want, a bit of Node Editing is in order.
The most expedient way to get precision when Node Editing is to draw in geometry which defines where one wants nodes to be — in this case, it should work to use the existing geometry:
Or, one can coarsen the grid and move the object so that the on-curve node is aligned with the grid pattern:
Repeat for the other side:
Adjust and repeat until one arrives at the desired shape:
Re-center
Thanks so much for your help with this!
I have the circle and one inside. How do I make the ends so they angle down like the picture?
I also have the pro version.
Test File Tray.c2d (44 KB)
Draw up the tool which will be used in profile:
and maybe that 1" Stock Thickness isn’t such a bad idea…
The geometry needs to be inset twice, once to define the thickness of the sides, and once to define the slope at the front/back — drawing these up in profile we get something like:
where we arrive at a problem which has presented itself in the past — drawing up a tangent to an arc… however, it should just work to maintain the same proportions at each edge so as to get a consistent rounding — we’ll see.
We subtract twice the width of each profile:
Done
This should get us geometry which when selected and modeled to the desired height:
will result in the desired slope/angle:
We then right-click on the geometry in question and choose “Create Outline Vectors”
entering the desired height
which does not have the desired result:
Backing up, we try re-examining the modeling to determine the difficulty:
and it becomes obvious that we will need to model past the Stock Thickness:
(indicated by the red area)
and adjust based on that.
We then Ungroup Vectors
and use the geometry for the top outer edge to model this flat and equal:
at the desired height yielding:
which shows that we are not getting the desired change in slope (due to allowing the additional projection) — re-working the geometry and model would seem to be called for…
The solution would seem to be to adjust things so that the inner geometry reaches the desired height without forcing the angle.
It will then be possible to force the thickness (after ungrouping)
which just shows that this sort of slope would need to be modeled in a tool such as:
or drawn as a height map and imported… (see other discussions of that sort of thing)
It is then possible to select the inner geometry and force it to the necessary dimensions:
which may then be used to apply the desired rounding:
We then inset the inner peripheral geometry:
(best to do this twice, once by half the distance so as to get the flat bottom geometry)
We then model the inner geometry to be equal to the desired height of the inner rounding:
Then select the original and furthest inset geometry:
and model them in subtraction so as to create the desired rounding:
Then model the in-between geometry to get the desired flat bottom:
Adjusting until things line up reasonably well:
Thank you so much! This is fantastic!
I think I’m following so far. How do I make it so there’s a .5 inch border before it starts to angle down. Do I make a duplicate of the oval? Also, how do I set the toolpaths?
Model the 0.5" area first.
copy-paste should work to duplicate the oval.
Toolpaths are just a matter of adding offset geometry:
Apply
and then apply a set of 3D toolpaths:
attached as a v8 file.
Tray for Mary_v8.c2d (2.1 MB)
Actually getting the differing slope angles can be done by exporting to a vector drawing program which supports blends:
Assigning white to one outline:
and black to the other:
Selecting both:
and assigning a suitable blend:
and adjusting until things are shaded as desired:
Then export as a pixel image
and import:
It is then possible to trace the vectors:
Remove the redundant geometry:
after ungrouping
Thanks so much! Worked Perfectly!
