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View Full Version : How to do a sharp right-angle bend in a flat strip?



Birck Cox
02-08-2019, 10:30 AM
Hello, gang. I'm still a rank beginner, meaning that I'm still working in the realm of hard-surface models, and I have what I think is a straightforward question: I'm trying to create a collection of parts, some brass, some plastic, and one of them is a strip of brass roughly a half-inch wide and four inches long, but with two right-angle bends. I've looked over the Bend tool in Lightwave, and it's great for doing 360˚ bends, or segments of 360˚, but it isn't obvious (is anything about Lightwave obvious?) how to tame it into describing a flat ribbon with two 90˚ bends. Can anyone suggest a way of doing that, with or without the Bend tool?

prometheus
02-08-2019, 10:48 AM
Hello, gang. I'm still a rank beginner, meaning that I'm still working in the realm of hard-surface models, and I have what I think is a straightforward question: I'm trying to create a collection of parts, some brass, some plastic, and one of them is a strip of brass roughly a half-inch wide and four inches long, but with two right-angle bends. I've looked over the Bend tool in Lightwave, and it's great for doing 360˚ bends, or segments of 360˚, but it isn't obvious (is anything about Lightwave obvious?) how to tame it into describing a flat ribbon with two 90˚ bends. Can anyone suggest a way of doing that, with or without the Bend tool?

Use px bezier from pictrix, it can do straight 90 degree angle turns, you can use belt mode.

https://forums.newtek.com/attachment.php?attachmentid=144062&d=1549648055

144062

SBowie
02-08-2019, 11:22 AM
Or just make a 'box', kill the top and bottom polys, then delete two sides. No bending involved ...

Birck Cox
02-08-2019, 12:10 PM
That might be the simplest way to do it. Add points, select them in order, and hit "P". Thanks for the tip.

Birck Cox
02-08-2019, 12:19 PM
Dear Prometheus, thanks for the screenshot. Unfortunately, as far as I can tell. Pictrix, at least the English language version, sings with the heavenly choir. You may have had it for a long time, but any attempt I make to track it down online wind up at the same roadblock. A page labelled Pictrix Down, followed by patches of mystery text entirely in Japanese. That conclusion has been scoffed at on this forum previously, but the scoffing doesn't improve anyone's ability to access the plugin. Plus, I'm trying to learn to use the application on its own terms. If it's difficult to do something as basic as a right-angle bend, that tells me something about Lightwave.

prometheus
02-08-2019, 12:54 PM
Dear Prometheus, thanks for the screenshot. Unfortunately, as far as I can tell. Pictrix, at least the English language version, sings with the heavenly choir. You may have had it for a long time, but any attempt I make to track it down online wind up at the same roadblock. A page labelled Pictrix Down, followed by patches of mystery text entirely in Japanese. That conclusion has been scoffed at on this forum previously, but the scoffing doesn't improve anyone's ability to access the plugin. Plus, I'm trying to learn to use the application on its own terms. If it's difficult to do something as basic as a right-angle bend, that tells me something about Lightwave.

We have posted this several times in other threads..
https://web.archive.org/web/20160127004819/http://www.pictrix.jp/lw/Px_Bezier/Px_Bezier64-121214.zip

prometheus
02-08-2019, 12:57 PM
You can also just draw a simple straight line with line pen, then in edge mode, select the edge and hit "e" for extend.."t" for move and do that while holding ctrl in so it is constrained, to add more segments, continue to hit "e" then move in the direction you want.
You may want to go to detail/polygons/ double sided as well.

Better yet, make the surface double sided initially.

Birck Cox
02-08-2019, 01:31 PM
Dear Prometheus, Yes, I've tried that route before, without results. I get a zip file that opens to something that is either corrupted or requires an opener I don't have. Sorry.

Birck Cox
02-08-2019, 01:41 PM
Dear Prometheus, that could work. I can't follow it from the description, but I'll try it.

raymondtrace
02-08-2019, 02:56 PM
While you may have found a solution to modeling a bend, I'm hopping onto this tangent of plugins.


Dear Prometheus, Yes, I've tried that route before, without results. I get a zip file that opens to something that is either corrupted or requires an opener I don't have. Sorry.

Archive.org occasionally acts up and may serve a bad file. I noticed an issue earlier today. The link Prometheus posted seems to be working now. It extracts fine with Windows default zip utility or the 7-zip tool.

Grab the Pictrix plugins while you can. Some tips are found from an "update" here. https://forums.newtek.com/showthread.php?158725-Please-Pictrix-s-SP_MOVE-x64-bit&p=1560327&viewfull=1#post1560327

Here's what I've found through archive.org and those still hiding on the pictrix site...

144063

(I'm assuming you're seeking Lightwave 3D for Windows plugins)

Birck Cox
02-08-2019, 03:41 PM
No, I'm on a Mac. If it works with Windows, it won't do anything for me. No wonder it won't work.

raymondtrace
02-08-2019, 04:15 PM
You may be in better luck than some of us. Pictrix seemed to be Mac based so they had more tools on the Mac side.

For example, you can use this Mac Adobe Illustrator AI import plugin which does not appear to be available for Windows.

http://www.pictrix.jp/lw/AIreader/Px_AIreader120728.zip

http://www.pictrix.jp/lw/AIreader/AIreader-01.mov

You can still dig through their site on archive.org and find Mac plugins.

https://web.archive.org/web/20130119092106/http://www.pictrix.jp/?tag=mac64

EDIT: Here's the Mac version of the Bezier plugin...
https://web.archive.org/web/20160604004450/http://www.pictrix.jp/?p=6002

Seek all of these through archive.org:

LW Px_Align (http://www.pictrix.jp/?p=5952)
LW Px_C_Bend (http://www.pictrix.jp/?p=5965)
LW Px_Curl (http://www.pictrix.jp/?p=5973)
LW Px_OnMove (http://www.pictrix.jp/?p=5994)
LW Px_ReSize (http://www.pictrix.jp/?p=5997)
LW Px_Navel (http://www.pictrix.jp/?p=5989)
LW Px_Bezier (http://www.pictrix.jp/?p=6002)
LW Px_RndSel (http://www.pictrix.jp/?p=6005)
LW Px_Sp_Measure (http://www.pictrix.jp/?p=6009)
LW Px_Sp_Polygon (http://www.pictrix.jp/?p=6017)
LW Px_SqArray (http://www.pictrix.jp/?p=6031)
LW Px_Sp_Roll (http://www.pictrix.jp/?p=6020)
LW Px_Sp_Move (http://www.pictrix.jp/?p=6014)
LW Px_Spray (http://www.pictrix.jp/?p=6026)

prometheus
02-09-2019, 06:31 AM
Dear Prometheus, Yes, I've tried that route before, without results. I get a zip file that opens to something that is either corrupted or requires an opener I don't have. Sorry.

Sorry for that corrupted file, should have tested it.

All those px bezier uploaded files seems corrupted.

oh..mac...then I canīt help out.