Taking the CNC Plunge

TomS said:
If you haven't already done so you might take a look at the CNC builds by jumps4 and jbolt. My conversion is based on their builds.

Tom S.
Click to expand...

No actually I haven't, thank you Tom and I really appreciate the time you have taken to answer my questions and provide screen shots as well.

I've included the links down below to anyone else who is curious on their threads who stumbles upon your thread on

Jbolt
http://www.hobby-machinist.com/threads/pm932-cnc-build.21442/

Jumps4
http://www.hobby-machinist.com/threads/rung-fu-clone-rf-45-zx45-cnc-conversion.8187/
 
techbuilder said:
No actually I haven't, thank you Tom and I really appreciate the time you have taken to answer my questions and provide screen shots as well.

I've included the links down below to anyone else who is curious on their threads who stumbles upon your thread on

Jbolt
http://www.hobby-machinist.com/threads/pm932-cnc-build.21442/

Jumps4
http://www.hobby-machinist.com/threads/rung-fu-clone-rf-45-zx45-cnc-conversion.8187/
Click to expand...

Thanks for posting the links. As you work through your build please post pictures. Everyone on this site will be interested in what you are doing. And of course if you have questions do not hesitate to ask.

Tom S.
 
TomS said:
Thanks for posting the links. As you work through your build please post pictures. Everyone on this site will be interested in what you are doing. And of course if you have questions do not hesitate to ask.

Tom S.
Click to expand...

Ohh I definitely will!
 
Hey Tom,

Another quick question before I start on my build.
The drawings you used from Jumps4, did you have to make any changes to use on your mill or was it pretty much spot on?
 
techbuilder said:
Hey Tom,

Another quick question before I start on my build.
The drawings you used from Jumps4, did you have to make any changes to use on your mill or was it pretty much spot on?
Click to expand...

The drawings from jumps4 were not used verbatim, just for ideas when I built mine. I double checked the X and Y motor mount bolt pattern to my mill. I found, through trial and error, that the holes on the ends of the table and on the front of the base were drilled and tapped randomly. My Z motor mount is significantly different than jumps4 so his drawings weren't applicable. Hope this helps.

Tom S.
 
jumps4 has a mill from a different manufacturer so it will be different. The mounting holes for the factory acme screw bearing blocks are hand fitted so the bolt patterns are not exactly the same from machine to machine.
 
This is the Chinese version of hand fitting. LOL

Table End Drilling 01.jpg

BTW - Jumps4 used a Wholesale Tool Milling machine. As jbolt said the acme screw bearing blocks are hand fitted at the factory. It's just that sometimes the hand fitting isn't what we would like it to be.

Tom S.
 
Ohh jeez haha

I just ordered the 1600oz stepper motors and the 60w power supply for them, Still waiting on a little more cash for the 4200oz and a power supply for it.

My temporary goal is to machine up some motor mounts for the x and the y and use the stock acme threads to machine some parts (the z axis motor mount) while manually operating the Z, did this at the old machine shop I worked at with an old time NC machine.

We shall see if the motors have enough oompf to turn the axis with an acme lead screw.
 
techbuilder said:
Ohh jeez haha

I just ordered the 1600oz stepper motors and the 60w power supply for them, Still waiting on a little more cash for the 4200oz and a power supply for it.

My temporary goal is to machine up some motor mounts for the x and the y and use the stock acme threads to machine some parts (the z axis motor mount) while manually operating the Z, did this at the old machine shop I worked at with an old time NC machine.

We shall see if the motors have enough oompf to turn the axis with an acme lead screw.
Click to expand...

What brand motors and power supplies did you get? Did you buy a kit? Your approach is logical and should work. Good luck!

BTW - I'm gathering materials for a belt drive conversion. I'll post pictures here so others can see what I'm doing.

Tom S.
 
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