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Forum topic by HuntleyBill posted 06-11-2019 11:30 PM 212 views 0 times favorited 7 replies Add to Favorites Watch
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HuntleyBill

118 posts in 3485 days


06-11-2019 11:30 PM

I have been playing with my CNC Router for awhile now. I’d like to start exploring relief carving in wood. I have spent some time looking online downloadable stl, nc files to practice on. I’d like to find free or minimal expense files to try out but all I can find is expensive files of places where you have to jump through hoops, sign up for accounts etc.

I don’t wan to do that.

Does anyone know of websites where I can get free or low cost CNC relief carving files that are downloadable?
Thank you for your help.

Bill

-- If you think you can, or think you can't...your right!


7 replies so far

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John Smith

1835 posts in 558 days


#1 posted 06-12-2019 12:43 PM

Hey Bill, I was thinking about you the other day and was wondering if
you ever finished the trunk for your old car ??

.

.

-- I am a painter. That's what I do. I paint things --

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HuntleyBill

118 posts in 3485 days


#2 posted 06-12-2019 06:00 PM

Hi John. Sure did. In fact, I have made several of them for others.

-- If you think you can, or think you can't...your right!

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OG51

153 posts in 506 days


#3 posted 06-12-2019 10:48 PM

Can you use gray scale depth maps with your software?

http://www.cnc4free.org/

Here are some of mine.

https://www.artstation.com/artwork/vo9Yv

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HuntleyBill

118 posts in 3485 days


#4 posted 06-12-2019 11:21 PM

Thank you OG51. Very interesting stuff. I did not see your stuff because it requires you to sign up.
Thanks for the info

-- If you think you can, or think you can't...your right!

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OG51

153 posts in 506 days


#5 posted 06-13-2019 01:49 AM

That is weird. I can get to my images without signing in but I threw a few of them into Pinterest so you can see a few of my models I have shared on other forums.

https://www.pinterest.com/oscarluis32/gray-scale-depth-map-images/

Regardless there are a ton of free stl and gray scale images out there. Unfortunately, they are sometimes hard to find and they can be of lower quality. But there are also some amazing sites: Threedscans.com

I’ve carved one of the models and it is one of my favorite pieces.

https://www.lumberjocks.com/projects/365513

I also encourage you to take the plunge and start making your own if you have any CAD or 3d modeling experience. I had zero when I started and it was an extremely steep mountain to climb but it is a ton of fun now (6 years later). I make my own custom patterns. Some you can see on my projects.

Sorry for the long winded response.

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HuntleyBill

118 posts in 3485 days


#6 posted 06-13-2019 03:46 AM

That is nice OG51. So how do I do that? What software do you use?
For example, I just wanted to start by taking the attached stl file and mill it into a flat piece of wood. Just to see how it comes out.

I like your images on pinterest, but how would someone download images like that and relief cut them into wood?

-- If you think you can, or think you can't...your right!

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OG51

153 posts in 506 days


#7 posted 06-14-2019 12:57 AM

You can build 2.5d models using any CAD software, a bunch of different cnc software have the capability, and/or with the explosion of 3d there are also many 3d artist’s software that will work as well.

I use blender 3d which is free 3d artist program but with a huge learning curve (but it is free). It is an all in one 3d animation pipeline software. You can model, texture, and animate in 3d with it. You would only care about the modeling part. I also use Zbrush ($$), which is the industry standard in 3d sculpting. My understanding is Fusion 360 does a great job as well but I have not used it myself. I believe it is free for hobby use.

You will need a software program to convert the gray scale to tool path g-code. A lot of the cnc software have this conversion capability built in. There are also standalone programs that can do that. Do a web search on depth map to g-code and a few will pop up.

The gray scale image creates a depth map based on a scale where on one end is zero (floor) and the other side of the scale is 1 or 100% height top of pattern and the gray in-between falling in middle. Different programs use white to black or black to white for this scale and grays in-between.

If you can get the stl format the quality should be much better if modeled correctly. Once you get the parameters down for stl or depth map on your machine an entire new world will open up.

To get my images from Pinterest just select and right click and save as image. They are all in jpg format. You can do the same with these. Unfortunately on both sites the image are reduced to save memory but they are good enough to play with. If you can ever get to my art station page the images are higher quality.

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