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Matts Home Made CNC Machine

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XYZ Rails 22-12-2005

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Now I've got both the XYZ Rails in place. On to the next part of stepper motor control.

X Rails 18-12-2005

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Now I've got both the X Rails in place and I'm well on the way to making the other axis's.

First Weld 21-9-2005

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This would be my first weld with my new welder, as you can see i'm not a welder by trade.

image Me welding, just had to put this one in :).

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Now all my efforts paid of.. A table to put all my CNC stuff onto. I still need to do some more work but I'm happy with the results.. Still room for improvement.

Welder 20-9-2005

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Today I went and bought a welder to help me out with this CNC project.. It's a no frills stick welder and came complete with a hammer, brush and mask.. Looks like I've got something to do in the comming days...

Z Axis Test 19-9-2005

Today I gave the Z axis a test run. Not happy with it. I'm thinking I'll just have to go down the heavy duty path. My construction method is not so crash hot and as a result I get a trasfer of any play in the threaded rod to the Z axis frame.

To Far 17-9-2005

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Maybe I have gone to far but here is a picture of the bearings I will be using. .

Bearing Bracket 17-9-2005

image This will be the brearing bracket as seen around... This was folded as one piece and will allow for a number of units to be made. This was given to me by a club memeber who has built his own foam cutting machine.. .

Driver Board 17-9-2005

This is a kit stepper motor driver board. The problem that this kit has is that the output is only a constant voltage. The effect of a constant voltage on the stepper motor at a high switching rate is low torque. I will have to modify the board to use constant current or throw it out. image .

Stepper Motor 17-9-2005

Here is a great picture of the stepper motors I will be ussing for the X and Y axis.. image .

ZAxis 17-9-2005

image The construction of the ZAxis is a test and uses parts off the old machine. I am trying only to use tools in my work shop to build the CNC. Things that I would like are a welder, Lathe, Drill stand, CNC :), however I'll just have to make do with what I've got at the moment. The quality of build is still not that great but I'm getting better.

CNC Prototype 2

The start of a new CNC machine 15/9/2005

Failed CNC Prototype 1

The failed old CNC Machine

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Why did it Fail

The old machine failed for a couple of reasons.
MDF got wet.
The draw sides had to much play.
Constant voltage stepper motor driver boards.
Lack of skill in constuction

Contact

Matt Woodroffe (2005)