QCAD.org Forum

I used d32_dome_arch (2).dxf as as a starting point. Where S is 2.1000 above the base ... :wink: In a few simple steps I get the development of the arc cover. e_geek d32_dome_arch (3).dxf But you are not out the woods yet. :( First: The support insert should not be 16 wide, then it is unsure if E is...

Last thing. I was under the impression that Qcad calculates the "length" of an arc and provides that measurement in the property editor. In the screenshot below, I selected Arc 1, and the property editor shows a length of 17.820". Is that wrong? That is correct for that arc ... But 17.82056866 itse...

Paul, because you added a question we can't filter on 'Unanswered'. And it doesn't show up in new posts when already glanced at = read. But I did recall that there was an additional question somewhere ... :wink: Are these the ones to use (as declared in GCodeBase.js) ? Not really but yes, that is pa...

FB, From the given equation it should be clear that we need the radius or the diameter of the cylinders joined at 45°. As said: Reconstructing your arc over here is a bit ambiguous. A circle, an arc is defined with 3 points that are not co-linear or with 2 points and a radius or its center and a rad...

See QCAD Bugtracker:
https://qcad.org/bugtracker/index.php?d ... sk_id=2556

Regards,
CVH

so precision isn't important. For example, three tangents would be fine. The pieces will be cut by a CNC laser. A laser won't care if it is reduced to 3, 5, 10 or more segments. It will cut the cosine/sin curve approximated with the same ease. The length of the cover (17.82") comes from the length ...

The top hexagon is fixed. A 10" hexagon with 4 1/4" sides. The bottom hexagon varies with the size of the dome. 28", 32", 36" and 40". NOT a hexagon ... It is a regular octagon. e_geek A regular octagon with opposite sides 31.5 apart has a side length of 13.047727... and NOT 13 1/4 as in your dome_...

FB, Here are the Fit-Points coordinates of the curve projected to vertical in Dot-Comma style: 4.9116135,0.0 4.89292332777584,1.03477818224748 4.83699505459943,2.06955636449497 4.74425432840004,3.10433454674245 4.61540696210245,4.13911272898994 4.45143356196433,5.17389091123742 4.2535820645706,6.208...

FB, This is called unfolding or unrolling, developing and all is based on geometric projections. There are some ventures to do this in QCAD. Already a most basic one is a standard example of unfolding a box, see script Libray Items CubeCuttingOut.js A more elaborate trial was posted by tukuyomi. The...

Can anyone please explain the start and end cutter trajectory paths? The 'donkey ears'. Example of basic offset post GCodeOffsetMM. Blueish is a traverse at Zsave. Dashed is the cutter trajectory at Zcut. Continuously is the contoured edge at Zcut. The arcs in continuous Linetype are the intended Le...

Unsure about your trajectory for milling the center hole (Profile 3). I question the exterior lead in/out ... Further I detect 6 Toolpaths: In the above described order that would be: - Profile 3 - Drill 2 - Profile 4 The other paths don't reflect source entities. I don't think that 'Normal' Lead In...

When exporting nc code (test_nc.nc) suddenly from line 33 it starts littering it with G1 codes while the G1 option is NOT selected ? Code is exported as text Blocks and none in Tnc150MM.js seem to have standard G-Code ... ... Again it is the order of things. You based Tnc150MM.js on GCodeBase.js Fi...

Running mostly 3.27.6.0 on Win7 32bit and all is fine even with drawings from other users. My OS is no longer supported and I don't get the regular annoying automatic updates anymore :P Meaning that everything has basically remained the same as long before 2022. My CNC dedicated Win 10 64bit setup w...

I made a test file with both attributes and custom properties, and both the attributes and the custom properties could be written to the csv file. Yes, of course, but Block Attributes exist on there own. You also need to query the associated Block Reference ID to know to what Block Reference it is ...

FB,

That where 3 paragraphs.
- If the drawing as PDF is fine then use it as a PDF merging sheets from different PDF sources to one PDF.
- Bitmaps won't give the same satisfaction as vector art will.
- An image type using vectors is SVG ... Both QCAD and Word would handle that.

Regards,
CVH