My new toy and project

Re: My new toy and project

Postby ConnRiver » Mon Jul 07, 2014 8:32 am

Rob M wrote:
ConnRiver wrote:.... So, I guess I'm good for four axis milling, then?


Sounds like it. Do you have a 4th output on your controller board? Mine does but I don't have a breakout board for it.


Yes, it has four outputs. X, Y, Z, A, I think 'A' is how the fourth axis is labeled in the manuals. 'A' would be the plug-in for the rotary table, I assume.

Breakout board? Don't know the term. An add-on axis control board?

-Brian

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Re: My new toy and project

Postby Rob M » Tue Jul 08, 2014 4:37 pm

Yep, your A output would be for the 4th axis.

I meant to say chopper board, not break out board. You have a main break out board that connects to the computer via a serial cable or a USB cable. For that comes a chopper board for each axis. For my system I bought the individual boards and wired it up myself. It sounds like you may have a pre-assembled unit.
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Re: My new toy and project

Postby ConnRiver » Wed Jul 09, 2014 7:38 am

Rob M wrote:I meant to say chopper board, not break out board. You have a main break out board that connects to the computer via a serial cable or a USB cable. For that comes a chopper board for each axis. For my system I bought the individual boards and wired it up myself. It sounds like you may have a pre-assembled unit.


Yeah, I wussed and bought a plug-n-play FlashCut system, hardware and software. First, I attempted to assemble/solder boards purchased from individuals online, but my zero background in electronics led to frustration and answers weren't easy to come by online. Thanks for the explanation.

-Brian

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Re: My new toy and project

Postby Rob M » Sun Jan 25, 2015 12:38 pm

Here's a rivet counter's delight.

Dead image links removed.
Last edited by Rob M on Wed May 02, 2018 5:10 pm, edited 1 time in total.
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Re: My new toy and project

Postby areibel » Sun Jan 25, 2015 1:04 pm

WOW!
That is impressive, I'd bet no one could tell that's TT from the pics! Very impressive Rob!
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Re: My new toy and project

Postby j p » Sun Jan 25, 2015 1:15 pm

Rob, could you make more of those?
I'd buy two.

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Re: My new toy and project

Postby Rob M » Sun Jan 25, 2015 1:45 pm

j p wrote:Rob, could you make more of those?
I'd buy two.

Jan

I doubt it. There's around 35 hours of machining to make one of these. It would take an embarrassing amount of money for me to want to make more. But, if there is enough interest I may consider making up one more for use as masters for resin casting. I won’t cast them myself though.
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Re: My new toy and project

Postby Rob M » Sun Jan 25, 2015 2:17 pm

Bernd wrote:Now for the curious amongst us. How did you do that? Is it brass or plastic? And is this a trade secrete?

Bernd


Thanks for the compliments!

It is all plastic (except for the ladder and hand rails)

No trade secrets here :wink: . I made it up in Sketchup as individual parts, exported them as STL files and then import the STL file in CamBam to create the 3D g-code. I then use CutViewer to verify I have everything correct before going to the CNC.


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Last edited by Rob M on Wed May 02, 2018 5:11 pm, edited 1 time in total.
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Re: My new toy and project

Postby MacG » Sun Jan 25, 2015 2:59 pm

That's gorgeous, the rivets and the trucks looks great! Is this all cut with a small round nose end mill? Which diameter?
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Re: My new toy and project

Postby Rob M » Sun Jan 25, 2015 3:09 pm

MacG wrote:That's gorgeous, the rivets and the trucks looks great! Is this all cut with a small round nose end mill? Which diameter?

Mostly the rough cutting is done with a .040" ball nose mill and the finishing pass is with a .015" ball nose mill.
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