as requested on support…
Can I import an image of a part into Create which is made from a life-size hand drawing ? What must I do to establish the correct dimensions within the file without redrawing the part ? Does Create have an “enlarge” function ? For example, the large hole in the middle of the part has a 0.7-inch diameter.
Where a file was arrived at on support:
So we make a new layer, move the trace to that and then begin drawing…
As noted, the central size should be:
so a bit of scaling is wanted…
Estimating the size we get:
0.7 / 3.2 ==
so se unlock the original layer, select everything on it (as well as the circle used as a proxy for the size):
and Scale
Done
Drag things to the origin:
re-size the Job Setup:
OK
Re-lock the layer, then check sizes:
We then draw in the other two holes:
and position them:
We then measure the distance of the radius around each circular object:
~0.34
~0.17
and select each set and duplicate and add that dimension to the duplicate:
If a dimension seems off, adjust:
Same for the position (but select both):
If desired, the second may be copy-pasted:
then moved into position and the original deleted:
Draw a polyline which approximates where the lines should be crossing:
Hide the original:
Add the geometry for the round portions of the perimeter to the selection:
and use Trim Vectors to remove the portions which are not wanted:
OK
Delete the drawn polyline:
Then, use the line tool to draw in the lacunae:
Done
Repeating for each necessary segment:
Select everything:
and use Join Vectors to close:
Yes
Just received:
which since it has an 0.25" grid, allows one a bit more control over dimensions.
Counting grid squares we get:
OK
Set Grid to 0.25"
OK
We use Set Background to import the photo:
and attempt to adjust scaling/position until the grids line up:
But there is a limit to reduction:
So we draw a rectangle, and work w/in that:
Adjusting Job Setup to match:
As before, draw the central circles:
Since things will be easier if consistent, align the two holes to either side:
OK
As before, Align Vectors (assuming the part is symmetrical on both axes)
OK
For the two bolt holes, select and group:
then shift-click on the central hole:
adding it as the key object and again align:
OK
The balance is as before,
Duplicate the bolt holes:
and Ungroup:
Select each:
and change the radius as before
Draw in a polyline which crosses the circles at the desired tangents:
Doing only one side, then copy/paste:
and Horizontal Mirror:
and drag into alignment:
as before, select the geometry for the perimeter:
and use Trim Vectors to remove what is not wanted:
OK
shift-click on what is wanted to remove it from the selection:
and delete:
Draw in the necessary lines to connect the dots:
Done
Continuing until one has:
Select everything:
and Join Vectors:
Yes
If desired, use Node Editing to adjust:
Overall, the drawn rectangle should be 14 squares wide, so select everything:
and scale to
14 squares * 0.25 (grid size)
Done
And, now we have a scan:
As before, the file does not allow a direct 1:1 scaling, so we measure the grid at the current size by zooming in:
rand drawing a square:
12:1 seems a reasonable scale to try for, so we draw an 0.25" square:
then scale it up by 12:
Done
and then adjust the image scaling to line up:
Again, we set the Job Setup to some dimensions to match:
Scale the grid:
and then do a final adjustment of things:
Again, draw circles:
and align:
and measure:
Duplicate by copy-pasting in place:
and add the measurement to the radius so as to offset:
For the bolt holes, again, group:
shift-click to add to the selection:
and Align Vectors:
OK
Ungroup
and add the measurement to the radius of a copy-pasted duplicate as an offset:
on each side:
For a different approach to get the tangents, since things overlap, select the 3 offset/overalapping circles:
and choose Boolean Union:
and check “Keep Original Vectors”:
OK
Choose Node Editing:
and select and delete nodes:
Until you get things shaped as desired:
Zooming in/out as need be:
If you go a bit too far:
just undo:
and iterate:
Note that only one side needs to be done:
Since one can copy-paste in place to get a duplicate:
Mirror Horizontal:
then select both:
and use the new Region Builder tool:
Yes
To select all of the regions which one wants:
(making sure that “Merge Connected Regions” is checked)
Or, use Boolean Union:
OK
Then use the nodes in the Unioned geometry as a guide:
Delete the unioned geometry:
to remove what is not wanted:
OK
Select only the polyline:
and delete
was well as the small overlaps:
As before, use the Polyline tool:
to draw lines to connect the arcs:
Done
Select everything:
Join Vectors
Yes
Scale
Done
As a check, draw a grid square:
Select everything:
and scale:
Done
eSelect the grid square:
and if desired, adjust scaling further.
Adjust Job Setup:
delete the square
Select everything:
Group
and Align Vectors to the Stock
Setting the grid to match the graph paper, things seem a good match:
Then, Ungroup Vectors:
and apply toolpaths:
Drill
Contour
Cutout
Adjusting as appropriate for material and workholding and so forth.
I would just measure the part and create a new layout.
Whew…. That wore me out!! Great tutorial for those that don’t have the ability to just measure the part out and create a new layout as Jim points out. Good way to show folks how to scan in or take a photo and gete end result.
@jtclose Yeah, I asked for a dimensioned drawing a couple of times…
Hazards of tech support.
@Redlander The photo probably would have been fine if a ruler had been included in the photo and it had been taken squarely.
That said, lots of ways to skin a cat.
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