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Sheet steel 2' x 3' with a thickness of at least 3/16" or 1/4". Ferromagnetic (such as type-410 or -430 stainless steel). Flat within .005".
I would like thin lines etched every inch in a checker...

Magazine article about building a CNC milling machine:

Servo Magazine (by the "Nuts & Volts" magazine publishers)

April Issue, 2005

ABSTRACT:
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A Hobby...

I'm another from Texas. I live near Plano. Wow, I'll bet there are more Texans here than anybody else. I guess Texans are just naturally more cerebral. Perhaps we should start a Texas Only sub-board....

Wow, great looking machine maxxgraphix! Now I'm jealous. I'll have to get off my backside and finish mine. LOL.

MonoNeuron:
Wow, nice machine. What do you hope your X,Y,Z lengths will be in the end? It looks pretty big. Mine is 4'x8'x10" (y,x,z). Keep them pictures coming...mine ain't done and your giving me...

This part had been completed.

jmullett made it and did a fine job.
Thanks everyone for your interest.

I like the free RSSOwl. It does RSS, RDF, and Atom newsfeeds.

What is RSS?
RSS ("Really Simple Syndication" or "Rich Site Summary") is a document specification that gives users the power to...

I know I'm no help, but if I were you I'd demand a refund. I would want them to say on the phone that they it was OK for the product to be bent, and then watch the sparks fly! There is really no...

Well, I got a reply from them on their smallest model. If you were going to make an axis that is around 60" long it would cost you about 1500 US after taxes and shipping. Around 3K for an 8 foot...

They don't have their prices listed. Does anyone? I call these "Stealth Products". Like so many other motion control specialists they don't list prices and want you to play phone/email tag with their...

Saw this and thought it might be interesting to some people. Its a kinky kind of rack-n-pinion, only different. They say it's Zero-Backlash! Check out Roller Pinion from Nexen. I may have to try one...

Check out Machine Design. They have some great articles on ball screws and other stuff. And it looks to be free. I've read some stuff and was never pestered for registration etc....

:cheers:

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How do you turn-down the ends on a ball-screw? There are some ball-screws I'd love to buy but the price doesn't include having the ends machined-down so I could use a bearing block. How are you...

I need two brackets cut out of 1/2" aluminum plate. They are very simple. They will help finish my cnc router. Below is a picture and a zip file with DFX and 3DM objects. I think they are to scale....

ynneb:
Tuesday night or at least by Wedsday I'll post a bunch of stuff on my monster Z-axis. I'm just now adding the last bit, the router mount. I don't mind the thread being cluttered but clean it...

I have a Makita (Model RF1101) that I am trying to attach to my newly made Z-axis. Should the mount be aluminum or can I use plastic? I was thinking about a 1/2" thick white plastic butcher-block I...

Perhaps you should move to servo motors. Mine are rated at 2000 rpm at 60 volts, which is what i will be supplying them. In fact, I've had a devil of a time slowing them down with pulleys.

Update:
I found a Lenox brand hole saw at Lowes Hardware, $10. It was bi-metal and said it was good for wood and metal applications. It came with the arbor so I didn't have to buy anything extra. It...

What kind of metal? I bought my T-slots in a one time deal from a guy who sold his extras. I buy aluminum plates cut to size off of Ebay. Try Ebay section - Scrap Metal. Sometimes you can find "cut...

For anyone wanting to make 2" - 12" holes in aluminum you might try this Adjustable Hole Cutter rig for $57.99. It uses your drill. It is basically a jig with a cutter bit. Kind of interesting...

jeffs555:
Regarding the circle cutter, how slow is slow? My drill press will only go down to 620 rpm. It is adustable with belt/pulley system from the top. But it's not a true variable speed. How...

That Hole Saw idea looks good. Here is a 1-3/8'' CARBIDE GRIT HOLE SAW from Harbor Freight, $7.99 that cuts " through hardened steel, cast iron, pipe, brick, ceramic and plaster up to 1-3/8''...

Can I use Forstner bits on aluminum? I need a 1-3/4" diameter hole in 1/2" thick aluminum. Can I use a Forstner bit in a drill press to make the hole, drilling in aluminum? Has any here done that?

Is there any lag in it?
I tried using the old internet phone stuff along time ago but the lag, even between two cable modems, made it unuseable. I mean, a 2 second lag doesn't sound like much but...

I feel for you. I did it twice! The first time I didn't know anything bad would happen. I remove my large carriages all the time and the bearings don't fall out on them. The second time my...

The only downside I see in using a belt drive is that if you have motors with a fast rpm, say 2000 rpm, then your looking at a huge step-down to run the belt. All those extra pulleys, bearings, and...

cncspear:
Thanks for the web page! I love looking at other peoples machines. Yours in particular looked very professional. And the videos were great also. It gave me lots of inspiration. Great job! ...

I have come to the conclusion that I have removed the proper grease from 2 of my THK bearings. LOL. That is not Cosmoline (A rust preventative grease used in shipping, like what firearms come packed...

I have some THK bearings/carriages. They are medium size and large size (4", 6" long). When I bought them they were covered with what looked like Cosmoline. It is a very thick gooey type stuff that...

I have been building my Z-axis for the past few days (pics to come soon). But there is no way to add lock-washers on the tiny bolts (Metric - M3) that hold the THK rails on. I also don't want to use...