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How to predict a miter angle from a slope*

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Forum topic by ToolCrib posted 01-05-2007 02:00 AM 6764 views 1 time favorited 12 replies Add to Favorites Watch
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ToolCrib

34 posts in 2817 days


01-05-2007 02:00 AM

Hey guys,

Here is a question from one of our users. Let me know if our approach here brings value to your community.

——————-
Subject: Miter question from Hans
To: tceditor@gmail.com

Thanks for your reply. Attached is a photo of a sculpture I made with the kind of base I’m making with the compound miter. Once I figure how many degrees I want for the outside slope is there a scale to predict the miter angle?

Thanks,
Hans
———————-

Photos:
Tranquility Transmitter
Sculpture 2

We let him know that the question was out of our league told him about your forum and asked if he wanted us to bring it here for him.

Here’s what he said:

———————-
...yes I would appreciate your communicating with the lumberjock.com forum. You may use the photo if that would help. Thanks again for your consideration.
Sincerely,
Hans
———————-

-- Editor, www.ToolCrib.com


12 replies so far

View Shopsmithtom's profile

Shopsmithtom

780 posts in 2850 days


#1 posted 01-05-2007 02:30 AM

I have a pdf file that contains an article and chart of compound angle cuts, but I can’t figure out how to upload it to this site. Help! I could e-mail it to the needy party if necessary.

-- Accuracy is not in your power tool, it's in you

View ToolCrib's profile

ToolCrib

34 posts in 2817 days


#2 posted 01-05-2007 03:26 AM

SST,

That’s Great! Thanks a ton.

You can email it to tceditor@gmail.com

-- Editor, www.ToolCrib.com

View Tim's profile

Tim

11 posts in 2839 days


#3 posted 01-05-2007 04:10 AM

Please let me know if this matches the chart:

Slope / Miter Angle

0 / 45
1 / 45.00872576
2 / 45.03489242
3 / 45.07846817
4 / 45.1394002
5 / 45.217615
6 / 45.31301879
7 / 45.42549802
8 / 45.55492003
9 / 45.70113376
10 / 45.86397054
11 / 46.04324502
12 / 46.23875609
13 / 46.4502879
14 / 46.67761088
15 / 46.92048286
20 / 48.35885673
25 / 50.14429257
30 / 52.23875609

Used a formula I found on the web here: “http://ca.geocities.com/xpf51/MISCELLANEOUS_NOTES/COMPOUND_ANGLES.pdf

And I used 3D CAD to double check… so theoretically it should be right, unless I misunderstood the question.

View Obi's profile

Obi

2213 posts in 2892 days


#4 posted 01-05-2007 04:23 AM

I have a scale that shows how many degrees per Inch:foot
For example 1 inch per 12” = 4.75 degrees or a
1:12 pitch = 4.75 degrees
2:12 = 9.5 degrees
3:12 = 14.25 degrees
Where do i send it?

View Don's profile

Don

2599 posts in 2832 days


#5 posted 01-05-2007 04:46 AM

Adam, did you intentionally publish, by means of this blog item, the questioners email address? Hope you haven’t violated his privacy.

-- CanuckDon "I just love small wooden boxes!" http://dpb-photography.me/

View Don's profile

Don

2599 posts in 2832 days


#6 posted 01-05-2007 06:09 AM

For the answer, have a look at this site. This calculator can be installed free on web sites with the permission of David Strip.

[Martin, I think it would be a good idea to seek Trip’s permission to place this calculator on this site.]

david.strip@cornell.edu

-- CanuckDon "I just love small wooden boxes!" http://dpb-photography.me/

View ToolCrib's profile

ToolCrib

34 posts in 2817 days


#7 posted 01-05-2007 06:25 AM

These replies are great! You guys are truly incredible.

I will send this thread on to Hans and urge him to join the site so he can share some more of those awesome sculptures of his.

Don and Obi,
TCEditor@gmail.com is our email address. You can send anything in regard to this or any other post to this email address.

Thanks again for your hospitality!

Adam

-- Editor, www.ToolCrib.com

View Dick, & Barb Cain's profile

Dick, & Barb Cain

8693 posts in 2954 days


#8 posted 01-06-2007 04:27 PM

Hi Adam.
If you wish to help Lumberjocks, maybe you can apply an LJ badge to your homepage, like some of the other vendors do.
The angle finder question has already helped me. Thanks to Don sharing the angle finder tool. I put it in my favorites.

-- -** You are never to old to set another goal or to dream a new dream ****************** Dick, & Barb Cain, Hibbing, MN. http://www.woodcarvingillustrated.com/gallery/member.php?uid=3627&protype=1

View ToolCrib's profile

ToolCrib

34 posts in 2817 days


#9 posted 01-08-2007 05:39 PM

Hey Dick,

Thats a great idea.

While I couldn’t convince the higher ups to let us add forum links to the homepage we did add you guys to our power tool questions page.

Once we get our blog up and running, we will put your badge on the blog homepage as well as links within posts to your threads on various topics and questions.

-- Editor, www.ToolCrib.com

View Martin Sojka's profile

Martin Sojka

1893 posts in 3127 days


#10 posted 01-08-2007 05:51 PM

Looks good, Adam.. thanks! I’m just wondering why we are listed as the 3rd resource ;)

View ToolCrib's profile

ToolCrib

34 posts in 2817 days


#11 posted 01-08-2007 07:00 PM

View Martin Sojka's profile

Martin Sojka

1893 posts in 3127 days


#12 posted 01-08-2007 07:42 PM

I was just kidding.. but I tend to like this more ;))

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