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After many, many hours of using this homemade machine, I have to say that rail-flex really hasn't been an issue, even though during high speed use you can actually see the flex with the naked eye - a...

Thanks, and glad you're enjoying the pictures.

I will admit I'm getting tired of making it, but only because I really want to be using it!

Well do Weldtutor, thank you. I just wasn't sure what they were called. What I was searching for didn't give me much to go on. Thanks!

To continue with the progress...

Mounting the rest of...

Thanks Weldtutor!

I'm at the point where it's mechanically done, minus two leadscrew nuts I have to make on the lathe. I'll be doing that once I get my lathe chuck to not wobble (grrr).

Almost...

Made another motor mount today. This is really not the proper way to use a forrester bit however it does work. Once making this part was completed, I was able to install it and the stepper motors...

I'm not going to use the name "Ghetto CNC Plasma Cutter" since another thread already used that name. However, this project would fit that description for sure.

When I was building new...

Yep!

Originally, I wanted to a "Y" configuration for bearings, somewhat similar to your two thumbnails, except upside down. It didn't dawn on me how to easily make it, so I went with four...

Thanks!

Actually the machine is almost done. Got the pulleys yesterday, have to make the stepper mounts, and measure for belts. I'm behind on the pictures :(
...

I intend to shopvac the contents out, and dump into a rubbermaid container. When it's full, it's getting taken to one of the metal recycling places one town over. It will have more metal than slag,...

Andrew:

Must be nice having space in your shop :D I struggled to find 2'x3' to embed my little machine.

And thanks for the feedback... that page has gotten more hits in the last few months...

I will in approximately a month.... I'm still building the machine itself.

http://frederic.midimonkey.com/cnc-gantry2.html

I'm using mild steel 1/2" diameter tubing at the moment (as in the above pictures), as a place holder while I'm still experimenting and engineering "on the fly". It will be replaced with hardened...

Gotcha. I was just concerned about your ankles. I built an engine testing stand similarly, and every time I walked past it, or used it, I skinned at least one ankle.

TerryDullaway,

I like your design a lot, you've obviously put a ton of thought into it and the results (so far) are excellent. I am also building a dual-purpose table (plasma and dremel), but...

Not even one day has passed since Weldtutor posted the links to my page(s), they got about 70 hits. Wow! To make things easier for you folks I reorganzed slightly, so that that gantry2 project is...

Finally found the pdf I read initially to get some ideas about plasma cutting over, or underwater.

http://frederic.midimonkey.com/temp/PlasmaWaterTable.pdf

Hope that helps.

Thank you!

The link to the second version doesn't work if I post the link directly, so please excuse the following instructions:

My main website: http://frederic.midimonkey.com/_index.html
...

Drilling out the ends of the stainless, hardened rod to 27/64"
http://frederic.midimonkey.com/cnc2/IM001792.JPG

Tapping to 7/16 course:
http://frederic.midimonkey.com/cnc2/IM001793.JPG
...

Randy - You're are absolutely correct - the rail can only be supported on the ends because the slides (saddles) are fully enclosed. I'm doing this on purpose actually, because my original design was...

Building my own CNC machine, for both plasma cutting and for slinging a dremel around, and after pricing ebay/used/new THK slides and competitive products, I decided to at least try making them...

I'm starting to build a smallish (36"x24") CNC gantry. It's my intention to make several "heads" whereas I can use both a dremel as well as my Miller 375 plasma cutter.

Anyway, I spent most of...

Since you're a nice guy Peter, let me help you out.

Ship the system to New Jersey, USA, care of me, and I'll evaluate the system for one year, then write up a report as to it's value - at no...

Interesting subject, sorry I've missed most of this thread.

I'm in the process of designing a cnc plasma cutting system based on my Miller Spectrum 375 plasma cutter.

When I built my new...