My home made CNC .

[C. J. Hung.]

Hello ,

The system said that I never posted in this site , so I am here say hello
to everybody

this is my home made CNC machine ;
Available mill range : X 1780mm , Y 780mm , Z 250mm
Spindle : 24000rpm(max 30000rpm),Max Tool D13.0,Feed rate : 4600mm








http://www.rcgroups.com/forums/showthread.php?t=781685

[High Seas]

Welcome aboard! What a nice looking machine too -- you obviously did a bit of planning before settling on the machine in cad1 and photo1.
What are you using for a spindle? Any close ups of the mounting?
TIA Jim

[C. J. Hung.]

the spindle is for industrial (US$2200)

[C. J. Hung.]

[wcarrothers1]

Now that is an interesting design. For sure capiable judging by the cut examples.

Don't think I've seen a Z moving gantry like that yet. That is cool as you never have to worry about part clearence with the gantry. Interesting in any case. But do you get any racking on the Z with that? Looks like you are using nice roller blocks so it's probably quite stable on the right and left sides even though the screw is only in the middle. Wonder how a dual screw would do.



Don't worry about your english (see you are from tiwan) People are going to want details on that spindle..

I'm curious about what your cutting and the process. Looks like you have a liquid tank and are cutting plastic parts. Are you doing some finish sanding to get it as smooth as your pictures show?

Looks like you are making radio control model air plane wings of some sort? is that true?

hopefully not to many questions. But again people I'm sure are going to be focused on that spindle and wanting to know about that.

b./

[C. J. Hung.]

Originally Posted by wcarrothers1 Now that is an interesting design. For sure capiable judging by the cut examples. Don't think I've seen a Z moving gantry like that yet. That is cool as you never have to worry about part clearence with the gantry. Interesting in any case. But do you get any racking on the Z with that? Looks like you are using nice roller blocks so it's probably quite stable on the right and left sides even though the screw is only in the middle. Wonder how a dual screw would do. Don't worry about your english (see you are from tiwan) People are going to want details on that spindle.. I'm curious about what your cutting and the process. Looks like you have a liquid tank and are cutting plastic parts. Are you doing some finish sanding to get it as smooth as your pictures show? Looks like you are making radio control model air plane wings of some sort? is that true? hopefully not to many questions. But again people I'm sure are going to be focused on that spindle and wanting to know about that. b./

Thanks for your interesting , but you were right , my English is really not good, so I am afraid that I can not realize your
means.so I take some pictures of my CNC, maybe you can found the answer in the pictures.by the way , my CNC is very
quite stable when all axis moving. use servo motor , 20 mm track(X 4 , Y 2, Z 2 , each track using 2 slider)

A. spindle = cut motor or all system of Z .(I can not realize)
B. the part in the liquid tank is aluminum.(pict 1)
C. yes , when the cnc work ok, I use sanding paper to sanding and car wax
to polish my mold.
D. yes , it is RC glider mold(my hobby, I am working about CAD/CAM)

if you need more picture then tell me , I will take some what you need.

[wcarrothers1]

So that was making a mold in aluminum for some helicopter wings then?

Were you using a ball nose cuting bit? Curious about your step over (distance between cuts) to get the mold as smooth as it looks..

Some real great work for sure.


So in the first post
picture #3 is a wing mold in progress

Pic 5 is the wing mold (guessing ABS plastic?) after polish..

Pic 6 is the mold with a wing in it?

Some day I would like to learn about making molds and laying carbon fiber things up.

I got a pair of carbon fiber wings for my Picolo micro helicopter from a guy in the UK that were really wonderfull

[C. J. Hung.]

Originally Posted by wcarrothers1 So that was making a mold in aluminum for some helicopter wings then? Were you using a ball nose cuting bit? Curious about your step over (distance between cuts) to get the mold as smooth as it looks.. Some real great work for sure. So in the first post picture #3 is a wing mold in progress Pic 5 is the wing mold (guessing ABS plastic?) after polish.. Pic 6 is the mold with a wing in it? Some day I would like to learn about making molds and laying carbon fiber things up. I got a pair of carbon fiber wings for my Picolo micro helicopter from a guy in the UK that were really wonderfull

Hi!
A. yes , it's for my T-rex 450(Heli) 325mm blade. cut step is 0.25mm , then use #400~2000 sanding paper to sanding.

B. pict #3 is in progress , when polish ok then use gel cast to copy.(see mypost 1 RCgroup link)

C. no , there have nothing in the mold.(post 1 , pict #6)





My design DLG glider
http://www.rcgroups.com/forums/showthread.php?t=388878

[Oldmanandhistoy]

All looks very nice to me good job.

John

[C. J. Hung.]

Originally Posted by Oldmanandhistoy All looks very nice to me good job. John

Thanks!

[wcarrothers1]

Wow.. The pictures in the RCgroups post are very cool. I'll need to look at them to learn some about the build process.

I've spent some time in the past building and flying RC models (electric park filers and zagis) but got out of it after having kids.

Mold making is something I really need to try some time with my machine. But is at a level higher then I am at right now over all.

Great post. And very impressive work.

b.

[svenakela]

Darn, good lookin' work!!!