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Type: Posts; User: gregmary

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    Re: CNC Router machined 1911 pistol frame

    Load up a quarter inch end mill and let'er rip

    348956

    Does it look like a 1911 yet?
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    Re: CNC Router machined 1911 pistol frame

    Several of the holes are for locating dowel pins. For example, below is how the piece will be oriented for the Magwell machining operation.

    348924
    Ya gotta stand on your head for this one

    ...
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    Re: CNC Router machined 1911 pistol frame

    OK, to get started. First I wacked off (hmmm) a 6.5" length of 6061 1" X 1.25" bar and mounted my drill guide. The drill guide is made on the 3D printer, which happens to be pretty dad gum...
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    CNC Router machined 1911 pistol frame

    I am launching a build thread to document my fabrication of a 1911 frame using only the tools available to me in my garage. I am taking this on more as a mental challenge than the desire for a...
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    Flip the part over and machine the other...

    Flip the part over and machine the other side........
    Click on the photo for a larger view
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    Enough with the Strat neck, Let's get started...

    Enough with the Strat neck, Let's get started with the body. Here I have loaded the Mahogany blank on the CNC and have routed the back side completely flat. In the second picture I have finished...
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    I got distracted, but I am back on the Strat. ...

    I got distracted, but I am back on the Strat. Here I am finishing off the headstock. I had the CNC cut the headstock a little oversized. I then glued a template of the final headstock outline and...
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    I had a similar problem with one of my axis. I...

    I had a similar problem with one of my axis. I played around with TurboCNC, adjusting the max speed, start speed and accel of the motor. If I started too fast or went too fast it would stall. The...
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    Sounds like your motor is stalling. How much...

    Sounds like your motor is stalling. How much current are you pushing through it?
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    What do you mean "RF interference" ? What is...

    What do you mean "RF interference" ? What is interfering with what?
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    I designed mine to have an effective 30" x to...

    I designed mine to have an effective 30" x to allow me to machine a full neck. and the y needs to support the width of a body-- 16" is a nice range.

    I use the dremel advantage router. It does OK...
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    The answer is yes. How many leads are coming...

    The answer is yes. How many leads are coming out? To drive them with a bipolar drive you want to figure out which leads are the center taps and which are the end of the windings. Take your most...
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    Here I cut the fret locations. I use a tiny bit...

    Here I cut the fret locations. I use a tiny bit to mark the locations on the cnc. I then use a fret saw to cut the slot the correct width and depth. I feel I have better contol with a fret saw on...
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    .75" ball nose with a .125" overlap

    .75" ball nose with a .125" overlap
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    I used three tools, a .25" to cut the truss rod...

    I used three tools, a .25" to cut the truss rod slot, a .75 flat end mill to rough out the part, using a .25" step down and about a 40% tool overlap. Finally I used a .75" ball nose to finish. I...
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    I did a little machining this weekend, focusing...

    I did a little machining this weekend, focusing on the neck. I cut the blank on the table saw, cut the top side, flipped it over and cut the back. I also cut the truss rod slot. I have not decided...
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    I've got a question. And maybe the answer is...

    I've got a question. And maybe the answer is 'just because I like it'. But if we are going to machine a guitar body, why copy a regular strat? Why not go for a "Super Strat". It's not a matter of...
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    Below are pictures of the simulation of the...

    Below are pictures of the simulation of the G-code for the neck. there are three more files that are not included here. The fret slot location marks, the truss rod route and the tuner holes. As I...
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    When I saved the file I got a message about...

    When I saved the file I got a message about inches or millimeters, Maybe you have to scale it up by the conversion factor or something. Like I said I am not real good with Rhino.
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    Ed, Attached is the Neck Model in .3dm format...

    Ed,

    Attached is the Neck Model in .3dm format for Rhino. Let me know if it loads OK. I am going to make one of these this weekend.

    Greg
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    I do have rhino, I'll convert the file for you,...

    I do have rhino, I'll convert the file for you, but I'm a bit rusty. I work on it tonight. I can easily make g-code for you at an angle for your machine.
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    ed, what format would you like the drawing in?

    ed,

    what format would you like the drawing in?
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    I have finished the neck model and it is ready to...

    I have finished the neck model and it is ready to be machined. Who ever wants g-code let me know and I will post it for you. I need toknow the size of your machine, the tools you want to use and...
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    Ed, I see what you mean about the Strat neck...

    Ed,

    I see what you mean about the Strat neck not having the overhang on the last fret where the body meets the neck. What is the history on this and why would we do it one way or the other?
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    Ed, Will the 28" piece fit on your machine? ...

    Ed,

    Will the 28" piece fit on your machine? Can you get the bit to all of it in two operations? I can make you two different tool paths for each operation and I can swap the y axis for you. Did...
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    Sure Ed, A .DXF is a 2D drawing file though,...

    Sure Ed,

    A .DXF is a 2D drawing file though, How would you use it to cut this 3D piece? Are you looking for the .DXF of the top view of the neck?

    Greg
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    Here are two g-code files and pictures of what...

    Here are two g-code files and pictures of what our blank will look like afterwards. The first file uses a .75" flat end router bit and the second uses a .25" round end mill.

    The fingerboard area...
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    Sounds Good, We'll do the fingerboard side...

    Sounds Good, We'll do the fingerboard side first. The first pass will use a larger bit, say a .75" and will remove the majority of the material. The second pass will use a smaller bit, or a bull...
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    Let us decide to make neck first. See if we...

    Let us decide to make neck first. See if we agree on the following

    1.) The neck will be machined on both the top and the bottom.
    2.) Let us make a blank that minimizes the amount of machining...
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    Does this pile of wood look like a Strat yet? ...

    Does this pile of wood look like a Strat yet? The round small piece is a walnut dowel. It was the closest thing I could find for the skunk stripe truss rod cover. I want to know who is going to be...
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