[ 3 / a / adv / an / asp / cgl / ck / co / diy / fa / g / gd / int / jp / k / lit / m / mlp / mu / n / o / out / p / po / sci / sp / tg / toy / trv / tv / v / vg / vp / vr / w / wsg / x]

/diy/ - Do-It-Yourself

<< back to board
[Delete this thread]

Anonymous 07/02/14(Wed)10:08 UTC+1 No.661567 Report

Hello /diy/

I want to make a 3D model of a coat of arms to give it to a CNC machine. I have 2D pictures as well as an embossing of the related coat of arms. Is there any way to get at least the model done for a newbie on a free software? I have people for the CNC machine, they could also possible do the polishing of the data. But I have to do the main work. What do you think? Pic related, not my coat of arms but the result i want to have. Material should be some metal, and it will be used as a buckle in the end.

Thx for your help
>>
Anonymous 07/02/14(Wed)10:14 UTC+1 No.661569 Report

>>661567
I haven't read this article in a while, but the section on converting an image to a vector and then to a SolidWorks file might help.
http://www.instructables.com/id/Bioshock-Belt-Buckle-in-Bronze/
At least it'll be inspiring. And yeah, as for free, Sketchup? Inkscape?
>>
Anonymous 07/02/14(Wed)13:09 UTC+1 No.661589 Report

Artcam is designed for doing this sort of thing I think it runs to about $1500 / seat, however I think their is a "trial version" available on TPB.

Lots of tutorials on youtube.
>>
Anonymous 07/03/14(Thu)18:58 UTC+1 No.662081 Report

>>661567
I don't think a CNC milling machine will give you much detail but you don't even have to build a 3d model, just get a millimetric paper and draw the different perspectives (or face if you will) of your coat of arms to get the coordinates you want and then build the program for the CNC machine on a .txt file or some compiler, there's some out there that sketch your work so you can fix mistakes.

Of course if you have someone else do the program for you they're going to charge you for it so you might as well pay up or learn for yourself. CNC language is not even that hard.
>>
Anonymous 07/04/14(Fri)22:20 UTC+1 No.662634 Report

>>661567
op here

thx for the replys. i will try and post results!
>>
Anonymous 07/04/14(Fri)23:30 UTC+1 No.662673 Report

>>662081
https://www.youtube.com/watch?v=jtNTSdDAdDI

A decent CNC absolutely will give that level of detail.
>>
Anonymous 07/05/14(Sat)09:59 UTC+1 No.662876 Report

>>662673
op here. i will use a professionell machine in a company. bottleneck is my data
>>
Anonymous 07/05/14(Sat)11:54 UTC+1 No.662896 Report

>>662876
post the files and I will fuck about with it in artcam if you like
>>
Anonymous 07/05/14(Sat)16:16 UTC+1 No.662952 Report

>>662896
here you go, this is the best I have. appreciate your help
>>
Anonymous 07/05/14(Sat)21:02 UTC+1 No.663029 Report

Working on it (half way through vectorising) give me a day or 2
>>
Anonymous 07/05/14(Sat)21:26 UTC+1 No.663034 Report

nice. thx
>>
Anonymous 07/07/14(Mon)13:57 UTC+1 No.663821 Report

bump for time
>>
Anonymous 07/07/14(Mon)13:58 UTC+1 No.663823 Report

>>663821
I'll post what I've done tonight. Thanks for reminding me to take my graphics tablet home.
>>
Anonymous 07/07/14(Mon)14:09 UTC+1 No.663829 Report

>>661567
you might ask around on some of the boards for CNC routers, such as at CNC Zone.

I aint used one but I know that there are modeling programs used with the routers that can take a grayscale image and make a height-map from it. That's how they do all the router engravings of fancy pictures. You might have to *fix* some parts of it in CAD but they sure as fuck don't go making every single point by hand.
>>
Anonymous 07/08/14(Tue)14:13 UTC+1 No.664354 Report

>>663829
I checke some of the software. I appears that it is just a reverse function for height maps (which are output as greyscale).So if the greyscale in your picture does not correspond to the height it will give out crap. Nevertheless it is a good hint! I will give it a shot and see whats coming out
>>
Anonymous 07/08/14(Tue)14:27 UTC+1 No.664360 Report

>>663829
so I tried one of the free online tools (http://www.embossify.com/) and it turned out as expected. But if you vectorise your image beforhand it could work out as a startin point i guess
>>
Anonymous 07/08/14(Tue)14:53 UTC+1 No.664364 Report

>>661567
There are no free software packages that will do what you want (convert a grayscale image to a surface).
If you torrent MASTERCAM X it includes the art suite that can convert a depth map image into an STL file. But your image isn't a depth mask.
The other software packages out there are geared towards engraving or laser etching on flat surfaces.

You're going to have to model it in Blender to get depth in your model surface.
>>
Anonymous 07/08/14(Tue)16:36 UTC+1 No.664390 Report

;x
>>
Anonymous 07/08/14(Tue)17:08 UTC+1 No.664397 Report

>>664364
Yeah, this is what i ment. I just gave it a shot to see what happens. I already have blender, just need to start...
>>
Anonymous 07/08/14(Tue)18:16 UTC+1 No.664421 Report

>>664360
>so I tried one of the free online tools (http://www.embossify.com/) and it turned out as expected.
if that site gave you a usable 3D file, you might try smoothing the 3D shape out and see what it looks like. If you averaged all those spikes, it might be pretty close already.
>>
Anonymous 07/08/14(Tue)23:24 UTC+1 No.664540 Report

Protip: Rhino3D

Your shitgrade 3D programs and depth maps are not going to handle this.
>>
Anonymous 07/09/14(Wed)00:32 UTC+1 No.664558 Report

>>662952
You DO know what that crest means, right?
>>
OP 07/09/14(Wed)02:52 UTC+1 No.664618 Report

>>664540
Except 3 axis milling machines can only cut "2.5D" shapes without roating and re-fixing the work piece.

Depth maps define a 2.5D surface, their use for this sort of thing is industry standard.
>>
Anonymous 07/09/14(Wed)09:56 UTC+1 No.664773 Report

>>664540
Protip: This is diy and not buy-a-1000dollar-programm-for-all-your-problems. This online tool was just for fun, you would have noticed if you read the posts. I am currently building a 3D model from scratch in blender.

>>62952
Why, do you know something I dont?
>>
Anonymous 07/09/14(Wed)09:57 UTC+1 No.664775 Report

>>664558
sry, I meant to respond to you
>>
Anonymous 07/11/14(Fri)20:45 UTC+1 No.665950 Report

almost finished the 3d model. Any ideas of how to make the leaves? I struggled hard enough with the other parts. Its not finished yet, though.
>>
Anonymous 07/11/14(Fri)22:43 UTC+1 No.665994 Report

I told you I was working on it.... just been busy.

Need to hand sculpt all the bullshit into of it but I'm pretty happy so far.
>>
Anonymous 07/11/14(Fri)23:45 UTC+1 No.666014 Report

blendercam is a free addon to blender (also free) that I use
>>
Anonymous 07/12/14(Sat)07:02 UTC+1 No.666236 Report

>>665994
wow. that looks amazing. i knew you were working on it. just wanted to give it a try. can you upload the stl file?
>>
Anonymous 07/12/14(Sat)07:37 UTC+1 No.666247 Report

>>665994
Just some more questions. You used artcam right? Is there a principal difference between artcam and blender? How did you start of, what was your strategie. I was trying to build up the sphapes by first lining out the structures and then extrude them along the z axis. for rounded objects this did not work well at all. so I am curious how its done right.
>>
Anonymous 07/12/14(Sat)09:26 UTC+1 No.666271 Report

>>666247

I started off by vecotrising it (in corel) but you've got to know how AC behaves with vectors with regards to having things overlapping etc.

Then I imported it into AC and just started using the shaping tools. Most things are either domed or truncated pyramids. You get to add / subtract / merge highest etc to build up layers of what you want. The leaves were just raised as flat planes and then the fade relief tool was used to put a slope on them. I think I'm going to change the way the arrow flight vectors work and then hand sculpt in all the details. (You only have to do half, and then mirror the lot.

Artcam is a weird hybrid of 2D based vector and bitmap editing (bitmaps are mostly used to mask off areas) along with 2.5D depth-map sculpting. Most 3D shapes will start life as a vector that gets extruded / textured / swept. To be honest it's not actually particularly good at anything, but it's (one of) the only packages where you can go from a photo of someones face to G code all in a single window.
>>
Anonymous 07/14/14(Mon)10:11 UTC+1 No.667410 Report

>>666271
ok, thx. how long will it take you to finish? Not rushing, just want to start to organize the cnc mill and the materials.
>>
Anonymous 07/14/14(Mon)16:03 UTC+1 No.667490 Report

>>667410
I'll try and finish it tonight, sorry mate I so busy at work I dont have time for much else.

I nearly brought a Roland CAMM-3 the other day that would have carved this out a treat too.
>>
Anonymous 07/14/14(Mon)20:55 UTC+1 No.667587 Report

Finished (for certain values of finished) There are bits Im not too happy with, but if it's only ever going to be a few inches tall who gives a fuck.

How / Where do you want the STL? I'll probably post a depth map as the next post for ease of use anyway.

If you want anything changing then it's probably easier for me to do it than you try and fuck with the STL's
>>
Anonymous 07/14/14(Mon)21:03 UTC+1 No.667590 Report

>>667587
8 bit depth map.

Max height on my model was 4.5mm, (approx 0.02 Z resolution) you can scale it to whatever you want
>>
Anonymous 07/14/14(Mon)21:14 UTC+1 No.667599 Report

>>667590
STL file

http://wikisend.com/download/615058/STL.stl
>>
Anonymous 07/15/14(Tue)11:43 UTC+1 No.667956 Report

>>667590
Thanks a lot. really. It is perfectly fine, it will only be about 11 cm wide anyway. I will see if this thread keeps alive and post updates, I might be able to start milling this week already! thx again for your help
>>
Anonymous 07/15/14(Tue)15:52 UTC+1 No.668061 Report

>>667956
I may knock one out on the CNC at triple scale or something (our gantry CNC wouldnt show any detail at 75mm just to see how it looks "in the flesh"
>>
Anonymous 07/15/14(Tue)16:24 UTC+1 No.668082 Report

>>661567
If you want get a good result, you have to put a few hours (probably a whole week) of work into that.
You need Maya or any other big modeling package and work the usual poly and nurbs2poly ways.
>>
Anonymous 07/15/14(Tue)16:39 UTC+1 No.668088 Report

>>661567
This picture is pure butthurt as a reference.
But I like this thing shown
>>
Anonymous 07/15/14(Tue)17:41 UTC+1 No.668124 Report

>>668088
yeah i know. its of course not done by cnc - its from a company in bavaria, they are blacksmiths professionalized in crests.I just wanted to show that i dont mean engraving, but actual 3d
>>
Anonymous 07/15/14(Tue)23:01 UTC+1 No.668200 Report

>>661567
Hi OP. Please show stuff u are working on
>>
Anonymous 07/16/14(Wed)09:36 UTC+1 No.668548 Report

>>668200
what do you mean - i try to make a buckle - got help - see above
>>
Anonymous 07/16/14(Wed)13:32 UTC+1 No.668596 Report

>>668082
Or use blender. It is known to be almost as good as maya and you dont need to give 50$+ for it.
>>
Anonymous 07/17/14(Thu)21:52 UTC+1 No.669174 Report

sent the data to a mate today. he is checking it and making the cnc code. hopefully i get some machine time next week
All the content on this website comes from 4chan.org. All trademarks and copyrights on this page are owned by their respective parties. Images uploaded are the responsibility of the Poster. Comments are owned by the Poster. 4chanArchive is not affiliated with 4chan.