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A lot of arguing going on here...

I think it would be great to see the RPI run LinuxCNC, although even if the LinuxCNC team decided to get it running on there, the support would probably be not...

I also run EMC in simulation under Ubuntu 11.04, it works fine, I don't remember doing anything special to achieve this. EMC 2.4.6.

That looks pretty cool to carve out, I may run it through mine just to try it. I like doing the 3d stuff, but don't do it often. I did some simple geometric stuff in gimp one, worked nicely. I've...

Wow, so ~6 by 22 feet? double gantry, that's quite a router build. If you want advice you should probably start a build thread, I don't even know what equipment you would need to work on things of...

double post, erase this

http://www.lowcostcncretrofits.com/hobbyrouter.html

For your budget, especially since you don't want to build yourself, I don't know of any other options. My first cnc machine was from...

http://modularcnc.flyingcart.com/index.php?p=detail&pid=56&cat_id=

Nice video, what software did you use?

Thanks so much, I use linux emc, i'll try it on it later.

I'm trying to do a circular cut that goes down smoothly on the Z axis, i'm sure there's probably a term for this but I don't know what it is. Just to be clear, I want to move in circles while...

Ok, it's been a while since an update has occured, busy with work has slowed me down a bit but i've been trying to get the machine done. I am much further along now, the machine actually moves...

I've only ever used EMC to drive my machine, I love it, granted however I know nothing else. I recently purchased some equipment from pico systems (john) but have yet to use it, i'm building a new...

Thank you everybody for the response, I have filled this order.

Thanks for taking you time to response/send a message,
Ross

I did not mean step as in how much to step your lathe, i just meant that the diameter bore difference is generally at most an eighth of an inch (at mcmaster and others).

It states very clearly...

Hello,

I need 3 shaft couplers that go from 1/2" to 3/4".
Bore A: 3/4"
Bore B: 1/2"
Outter diameter: 1 1/2"
Length: 2 1/2"
Material: 6061 Aluminum

The depth of each bore should be equal,...

Mike, Nah, I don't even know where an 80/20 deflection calculator is... Also i'm still doing more reinforcements, so hopefully it will be even more rigid after that.

I've attached a pic of my old...

Wayne, Thanks for that link, very interesting design. Simple yet effective. I'm hoping I won't have to utilize that, but if there is any twisting action i'll surely use that method to fix it.
...

The machine dimension specs are this:

X: 49"
Y: 25"
Z: 5-6" (Not sure how it will turn out with the depth of the table board I use, plus fastening system..)

X and Y are meant to be just above...

Well i've made some good progress, today I finally got the gantry attached to the X Axis, also got the legs on. So far my main concern (not sure how to explain this) of the gantry twisting, like...

I've started a new machine build using primarily 80/20 3030 and hiwin 15mm linear slides. Some of the pictures below are from about 2 months ago at the start, up until last night I think. Progress...

The most cost effective linear actuators I have found where these ones: http://www.trossenrobotics.com/store/p/5187-12-STROKE-110-LB-12-VDC-LINEAR-ACTUATOR.aspx

They, however, don't come anywhere...

I will try that, never would of guessed that one.

Thanks,
Ross

I used to not do much work with aluminum, but recently i've been cutting a few different pieces of a project, and I kinda want to get some kind of consistent finish to them. I buy mainly from...

I got some 12" pieces of T-Nut "stock", which i've been drilling and taping with the proper dimensions. I think it should work properly, I couldn't find lock washers for the #8 size machine screws...

Could you post a link to where you got the laser center point device? I'd like to check the same on mine. I have a Makita router, the 2 1/2HP version, i think it's pretty common. It seems very...

Looks good man.

I too am doing a similiar thing, i'm using my first cnc machine (wood based) to help me build my new all aluminum machine. I'm using primarily 80/20 type extrusions though, so...

Hey, i've been working on my new CNC machine, and am wondering what others have done to mount linear slides to 8020. Now obviously the answer is to get a T-Nut and drive a screw into each hole of...

Shane,

Servo's can be found at a few places, well besides straight from a manufacturer which would charge 4 times what they are worth.

Machinetoolcamp sells cnc plans, I actually bought a set,...

Larry,

Thanks for your reply.

Yes, I did realize a few things after my previous post. I understand now that the end of the ballscrew needs to be machined, and that's the part that would go...

Ok, I just realized mcmaster has these prebuilt, and for sale on their ballscrews page. I don't know how to get a link to mcmaster, but if you search for ballscrews, or just goto catalog page 1055...