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Turbo Cad 19 problem with 3D add boolean operation
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* June 10, 2019, 07:06:59 PM
I'm having problems with 3D add operations with simple objects. I'm drawing I beams using rectangles 2D and adding them together then selecting the profile and creating a 3D solid to whatever length rough that I need. I get at least 1 cut to length and when I try to add another pc of the same object back to it creates a solid but with a visible line at the addition. I've been doing it this way for years five days a week, never had any problems with TC18 or TC15 all the way back to TC6. I can't figure out what is causing this and the TC18 program I used for countless years is on my last workstation that is dead so I can't open it and look at my settings to see what is different with TC19. I've been having many issues with 19 compared to 18. I use this program all day everyday for my living as a steel detailer and this problem is making me not happy.  And I have all my files saved from the dead workstation and when I bring a part or modified beam from a TC18 file I can rubber stamp them with no problems, the same parts I draw with TC19 need to be copied which is not as quick and kind of a pain in the ass. >:(  Henry help please .

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* June 10, 2019, 07:44:41 PM
#1
Are you sure that the two pieces match up exactly before adding? Use Assemble by 3 Points to be certain.

Henry H

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* June 10, 2019, 08:34:52 PM
#2
I tried that before and still the same result and I just tried it again with this model I'm working on. I can cut it and mirror around vertex or construction line, still no joy, it adds with the visible line shown. I can send you the file.

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June 11, 2019, 04:52:25 AM
#3
When I do jobs like this one, I locate the Reference Point at a mating surface and place Points at various locations so that one piece can be 'attached' to another piece with flexibility.

I pretty much only use the Assemble by... functions when the pieces aren't rotated on 90° increments.


Jeff

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TC Pro Platinum 2019, 2018, 2017, 2016 & 2015 (all with LightWorks & RedSDK) & V21
System: i7-5820K @ 3.30GHz, ASRock X99 Extreme4, 16GB DDR4-2133 RAM, Gigabyte GTX 970, Samsung NVMe SSD 950 (256GB), Windows 7 Pro (64-bit) SP1


* June 11, 2019, 08:16:35 AM
#4
I tried that before and still the same result and I just tried it again with this model I'm working on. I can cut it and mirror around vertex or construction line, still no joy, it adds with the visible line shown. I can send you the file.

Yes, please post the file here on the Forum.

Henry H

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* June 11, 2019, 03:31:51 PM
#5
Attached is a simple I beam created with 2D rectangles joined by 3 points then 2D add selected and given a 3D solid property length. After subtraction of the connection holes and slices for cope it I needed to change the connection at one end, I sliced and mirrored around the cut and tried to add it back together before cutting to length. It left a line at the cut and I noticed during the 3D addition it selected one as a part and the other pc an acis solid. This I think is the problem, some of the 2D drawn parts given 3D solid properties are not showing up when selected as anything in the 3D properties. I contacted TC support and they just want me to upgrade to v-26.
Thanks,
Rick

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June 11, 2019, 04:23:56 PM
#6
A quick look indicates that the I beam was not placed orthogonally on your workplane, so when you split it, its long dimensions were at a slight angle from the Z axis.

Try taking your original piece and placing one of the long facets on the World workplane (to do this, go to View/ World Plan, Plane by Active View, draw a Box with negative height (so its top facet will be on the World workplane), then use the Assemble By Facet function on the I beam to place it on the Box's top facet.

Once done, 3D Slice and Mirror to see how it turns out.


Jeff

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TC Pro Platinum 2019, 2018, 2017, 2016 & 2015 (all with LightWorks & RedSDK) & V21
System: i7-5820K @ 3.30GHz, ASRock X99 Extreme4, 16GB DDR4-2133 RAM, Gigabyte GTX 970, Samsung NVMe SSD 950 (256GB), Windows 7 Pro (64-bit) SP1


June 11, 2019, 04:28:37 PM
#7
Oh, yeah... your precision was set to 3 digits.  You should use at least 6 (I use 10) to minimize rounding errors.


Jeff

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TC Pro Platinum 2019, 2018, 2017, 2016 & 2015 (all with LightWorks & RedSDK) & V21
System: i7-5820K @ 3.30GHz, ASRock X99 Extreme4, 16GB DDR4-2133 RAM, Gigabyte GTX 970, Samsung NVMe SSD 950 (256GB), Windows 7 Pro (64-bit) SP1


June 11, 2019, 04:31:55 PM
#8
Once done, 3D Slice and Mirror to see how it turns out.

I did just that and it resulted in a smooth I beam.


Jeff

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TC Pro Platinum 2019, 2018, 2017, 2016 & 2015 (all with LightWorks & RedSDK) & V21
System: i7-5820K @ 3.30GHz, ASRock X99 Extreme4, 16GB DDR4-2133 RAM, Gigabyte GTX 970, Samsung NVMe SSD 950 (256GB), Windows 7 Pro (64-bit) SP1


* June 11, 2019, 05:48:43 PM
#9
Thanks Jeff,
I just did that and it worked. My drawing template is a 12x12x12 box set on the workplane which is draw everything by setting the workplane on a facet, columns off the top or beams off the sides. So my box may be off or moving beams around they end up slightly off of the xyz axis. Good trick to know now. What precision do you want me to set to 6 digets?

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June 11, 2019, 07:33:19 PM
#10
Go to Options / Space Units and change the units there.


Jeff

 

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TC Pro Platinum 2019, 2018, 2017, 2016 & 2015 (all with LightWorks & RedSDK) & V21
System: i7-5820K @ 3.30GHz, ASRock X99 Extreme4, 16GB DDR4-2133 RAM, Gigabyte GTX 970, Samsung NVMe SSD 950 (256GB), Windows 7 Pro (64-bit) SP1


* June 13, 2019, 05:02:03 PM
#11
Jeff,
I changed the space units but still having issues 3D adding or subtraction. On the attached drawing I needed to subtract a rat hole from the beam ,which is a 3D solid I created long ago, it would not subtract even when I made a new box using your instructions  with out leaving a line at the addition and I placed both solids on assemble by facet. So I created a new rat hole, workplane by world/by facet all 3D and added them no problems. When I try and draw a box on the selected end facet of the rat hole or the new box it will not start from the exact corner selecting by Vertex/intersection or using construction lines which results not being able to add them together, the lines hover a little away from the box facet corner. I can't figure out what is going on, maybe something else in my drawing setup. I can select the facet and draw a box out in space, move it to the box and it will add no problem but if I draw a box right on the facet it will not. Its seems like my workplanes are moving or something.
Check it out.

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* June 13, 2019, 05:11:11 PM
#12
Where do you want the rathole, Rick?

Henry H

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* June 13, 2019, 05:35:51 PM
#13
Henry,
The new rat holes subtracted from the beams no problems, new ones have a bit of square extension. I can't draw a square on the facet of the new rat hole and have it add without showing a line. Rat hole was drawn on the front facet as solids, then added together and then I tried to draw a square on the side facet to give it more length, no magic or drawing a box the 12x12x12 square. Try drawing a box on the 12x12 box and zoom in on the corners. I'm just trying to figure out what I'm doing wrong.

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* June 13, 2019, 06:20:51 PM
#14
Attached is a new drawing. Start with the box on worldplane and draw solids using construction lines, add and then try to draw a box on the rat hole end facet still no go. Do I need v-26?

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* June 13, 2019, 06:47:57 PM
#15
Attached is a new drawing. Start with the box on worldplane and draw solids using construction lines, add and then try to draw a box on the rat hole end facet still no go. Do I need v-26?

As in the attached screenshot? No, you don't need v26. The first thing you should do is turn Snap to Grid OFF. Then create a Workplane by Facet, selecting the rat hole end facet. (I don't know where Workplane by Facet is in the menu structure of your installation. If you haven't already done so, I recommend that you go to View>Toolbars, find "Workplane," and drag it onto your desktop.) Having set this new WP, simply use the mouse to position and construct the desired box.

Henry H

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