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Forum topic by Brian posted 04-27-2014 01:51 AM 1152 views 0 times favorited 10 replies Add to Favorites Watch
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Brian

8 posts in 1199 days


04-27-2014 01:51 AM

Topic tags/keywords: tip resource question router milling shaping

I’m trying to cut out some plane from a magazine dose anyone know how to photocopy and cut it out on a cnc router

-- Brian K


10 replies so far

View DS's profile

DS

2151 posts in 1886 days


#1 posted 04-27-2014 02:02 AM

Well, Brian, the typical method involves drawing the parts in a CAD program and the creating tool paths and g-code in a CAM program. I haven’t used anything that worked from a photocopy except for low relief carving from photographs (after conversion into a CAD program).

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS251

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Rick M

7929 posts in 1846 days


#2 posted 04-27-2014 03:07 AM

You can send it to a vectorizing service and have it redrawn as a vector which can be imported into a cadd program. They do not create work specifically for cad/cam but I have imported other vector formats into cad programs with no problem. This is the company I use: http://www.artworksource.com/

-- http://thewoodknack.blogspot.com/

View oldnovice's profile

oldnovice

5730 posts in 2834 days


#3 posted 04-27-2014 04:04 AM

Brian, I got my Shopbot CNC a little over a year ago and have overcome my first cut jitters which wasn’t over night by any means and I am still learning every time I try something new!

My PartWorks program can use about any type of input file, PDF, bit mapped, or vectorized file because it allows me convert bit maps to vectors, on PDF files it can find all open vectors and connect them as I see fit, and pure vector files are obviously no issue.

I then do what DS said for cutting sheet goods, select a vector (by clicking on it), select a cutting bit, determine whether to cut outside, inside, or on the vector line, determine how many passes, if any tabs are needed and if so how many, where, and what type and continue this process until all the vectors I want to cut with this tool bit are done. This process is done with another bit(s) until the part is finished.

In the cutting bits data base are the speeds and feeds for the bits selected for a specific cut and, depending on the material to be cut, the RPMs, X,Y, and Z speeds can be set. The set up sheet allows you to set the safe height and move height can be set.

The process for relief carving is somewhat different but in many ways similar.

This may sound simple and, after some time it does become a little simpler but it does take some time to learn all the nuances created by material selection as that determines the speed, feeds, RPMs, chip load, and obviously cutter selection.

-- "I never met a board I didn't like!"

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Rick M

7929 posts in 1846 days


#4 posted 04-27-2014 04:15 AM

I have used software to vectorize bitmaps but find it unreliable. Not sure if the service companies are using software then tweaking by hand or just redrawing from scratch (usually not very difficult) but their work for me has been spot on.

-- http://thewoodknack.blogspot.com/

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Brian

8 posts in 1199 days


#5 posted 04-27-2014 04:43 AM

I’m trying to make a wooden geared clock does anybody no if anybody has or sells the plans for a cnc

-- Brian K

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oldnovice

5730 posts in 2834 days


#6 posted 04-27-2014 06:37 AM

Try Wood Gears as this site specializes in wooden gears!

-- "I never met a board I didn't like!"

View dannelson's profile

dannelson

181 posts in 1837 days


#7 posted 04-27-2014 01:15 PM

Brian what software are you using for your design/machining work? When I photo copy i go to the local office supply place and have them scale it to full size right away then draw a 12×12 square or what ever size works around the part and then import to my software to make sure that your scaling is correct. With clock gears you have to be dead on or enjoy filing. It’s not that hard to redraw the gears from scratch either, what plans do you have in mind?

-- nelson woodcrafters

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dannelson

181 posts in 1837 days


#8 posted 04-27-2014 01:20 PM

Clayton Boyer wood clocks search . If you have the proper software the DXF files are available along with the paper plans.

-- nelson woodcrafters

View Brian's profile

Brian

8 posts in 1199 days


#9 posted 04-27-2014 01:30 PM

I use scetchup and the plans are from a scroll saw mag

-- Brian K

View dannelson's profile

dannelson

181 posts in 1837 days


#10 posted 04-27-2014 09:03 PM

How does sketch up write code for your machine? Boyars plans won’t work for you

-- nelson woodcrafters

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