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 Post subject: Re: Mini CNC Machine
PostPosted: Tue Oct 09, 2012 5:08 pm 
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Location: The 80s baby!
Excellent! Very keen to see this come together!

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 Post subject: Re: Mini CNC Machine
PostPosted: Tue Oct 09, 2012 5:42 pm 
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heathwithnoteeth wrote:
looks good buddy

begee08 wrote:
Wow! top stuff mate!

Big Giant Head wrote:
Excellent! Very keen to see this come together!


Thanks guys! :)

So after the welds were grinded, the plates were separated and test bolted to the frame.

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Now the next step was to fabricate the adapter plates that would allow me to attach the linear rails to the extrusions.

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Now to prevent rust the parts were primed and painted to a grey colour that is called "machinery grey" so I thought it would suit well :)

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Now the side plates could be square and mounted for real!

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Here you can see the rails are mounted to the main body of the machine.

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The Z axis componets were all made using the drill press. I had made engineering drawings of each part so that I could make it quickly and accurately.

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As you all know doing things by hand it is expected to have a few minor accuracy issues. These hole are supposed to line up directly with the tapped holes in the bearings but are off slightly. However this isn't a huge problem as I can just run a larger drill bit through and give the bolt some extra room :)

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After this we were all good and it all lined up. so i countersunk them for the bolts.

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As I was very short on time to complete this project I couldn't wait for the shaft collars to arrive so i made some up on the lathe!

I have never used a lathe before and again this provided a great learning opportunity :)

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Now I had completed all of the individual components for the CNC machine it is just a matter of bolting them up!

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I got a Chinese industrial spindle off ebay and mounted it. I initially was thinking of using a cheap trim router but the noise they made was way to much. This spindle is so quiet it is amazing!

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So now it is basically complete! Just a few small things here and there to adjust :)

I got a really nice trolley from eBay to put the machine on and I think it looks pretty good!

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So the completed CNC Machine:

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I am really pleased with the way it has turned out and my teacher is pretty impressed too!

Praneet :)


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 Post subject: Re: Mini CNC Machine
PostPosted: Tue Oct 09, 2012 8:59 pm 
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Impressive... I have 2 questions, any examples of how it performs? And how many small shards of metal did you get in your hands and fingers :-P


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 Post subject: Re: Mini CNC Machine
PostPosted: Tue Oct 09, 2012 9:24 pm 
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wow great stuff... looks a lot like the high speed spindle we have on our TekCel at work... we used to have a die-grinder, but that made too much noise...

ours is coolant cooled... does yours use coolant?

keep it up...

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 Post subject: Re: Mini CNC Machine
PostPosted: Tue Oct 09, 2012 9:25 pm 
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beats the shit out of the pencil case i made at high-school...

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 Post subject: Re: Mini CNC Machine
PostPosted: Tue Oct 09, 2012 9:33 pm 
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Woolfe wrote:
Impressive... I have 2 questions, any examples of how it performs? And how many small shards of metal did you get in your hands and fingers :-P


Haha thank you :)

I got many shards lets just say that :shock:

Well here is a video of it working!!!
I made this to go with my project as it not only has to be marked by my teacher but also other teachers from other schools!

[YouTube]http://youtu.be/0nBRoq7GnJo?hd=1[/YouTube]

Seriously how do you get the youtube to work!?


Last edited by praneetn7 on Tue Oct 09, 2012 9:50 pm, edited 2 times in total.

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 Post subject: Re: Mini CNC Machine
PostPosted: Tue Oct 09, 2012 9:36 pm 
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heathwithnoteeth wrote:
wow great stuff... looks a lot like the high speed spindle we have on our TekCel at work... we used to have a die-grinder, but that made too much noise...

ours is coolant cooled... does yours use coolant?

keep it up...


Thank you heath :)

No this one doesn't run on coolant. Actually the one with the coolant was cheaper but i'd rather not be running around with buckets of coolant, pumps etc. when the air cooled one does the same for only $50 extra!

heathwithnoteeth wrote:
beats the shit out of the pencil case i made at high-school...


Haha I made a pencil case in grade 8 too! Now I can make an ultra precision version :)


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 Post subject: Re: Mini CNC Machine
PostPosted: Tue Oct 09, 2012 9:46 pm 
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kerosene is good for a cutting fluid when engraving metals... im not joking...

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 Post subject: Re: Mini CNC Machine
PostPosted: Tue Oct 09, 2012 9:58 pm 
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heathwithnoteeth wrote:
kerosene is good for a cutting fluid when engraving metals... im not joking...


Yes as well as WD40 (well at least according to CNCzone). I have yet to try aluminium but will as soon as my bits arrive from ebay :)

I also have a dust shoe in the works to collect all of that dust while its cutting. Seriously the stuff flies everywhere!

Praneet :)


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 Post subject: Re: Mini CNC Machine
PostPosted: Tue Oct 09, 2012 10:13 pm 
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OH YEAH PEOPLE!!!!!! FRONT PAGE OF OCAU!

http://www.overclockers.com.au/

PRANEET :D


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