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New page for calculator URL: Cone Strike-Out

I could see mounting a circular saw to a 'larger bed' CNC machine. Rip 2x stock for thinner needs, or even cutting dado's and crosscuts if there was a LOT to do.

I have a project where it would...

I live near Ashland City and am interested in seeing other folks CNC rigs. I don't have one yet.

I'd like to spring for a cup of coffee just to get together and talk DIY CNC.

If you are a DIYer, look at MechMate CNC Router - Build your own with our detailed plans .. plans cost about $100, cost is $5K to $8K and a great forum for support.

A Mechmate is normally a metal...

Has anyone built one yet?

I am almost in your boat :) ... software geek, out of the arena now. I have always enjoyed machines and 'tool building' (my dad was a MechEngr and I have a minor in it). Metalworking CNC machines...

I am NW of Nashville, and wondering if anyone in the area is interested.

... Jack

I second that. ... I like the pix posts, but posting the DXFs also makes the project reproducible easily by others. In addition that was the initial idea behind this thread if I read thngs right.

I have seen it done. But look for one that is really good. Reasonable volume, but mainly with higher vac-pressure. Most shop-vac are high volume, but not a super high pressure. The Festool vac's...

Mechanically, the amount of vacuum you put on the ducting would be one point of materials. Interior of the ducting being smooth, slow curves, no sharp corners, all make the air flow smoothly. It...

Middle-TN CNCer's?

I live near Nashville (roughly exit 24 off I24 between Clarksville and Nashville), and don't have a CNC rig but am interested in building.

If you live/work near Nashville...

http://www.pathfindersdesignandtechnology.com/worksheets/build_a_robotic_arm.pdf
has a simple 3DOF pneumatic arm.

I remember seeing plans a couple of places some time ago. One was basically a...

http://www.pathfindersdesignandtechnology.com/worksheets/build_a_robotic_arm.pdf
has a simple 3DOF pneumatic arm.

I remember seeing plans a couple of places some time ago. One was basically a...

Some folks enjoy the process of building, some enjoy the software problem, getting it all together to have it work well is the goal for us all.

Still the interface of the two worlds is the hard...

Gret4U93 .. No images showed, just adds for hosting services. What was supposed to be there?

... it appears the post was deleted.

Since your incremental costs of rolling it into the US market is pretty low (no new development), give it a shot. If it is tied to the hardware, I would think it might not fly as well as it could...

You might be able to get some answers on the EMC2 mailing list.

Possible help. To get over the stress of being a Noooob as you put it, try to learn something else first.

Not that it is the best, but think about learning Sketchup (sketchup.google.com), it is...

Starts do matter, but not as much as the overall design performance. But if you start with single start, and you get some experience, THEN changing out to multi-start threads might help, but single...

Most steppers do 200 steps per revolution.

Let's start with some numbers:

If you use it direct on a 1 start with a 20 pitch thread, you get 4000 steps per inch.

If you do the same thing...

Are you out after speed, or is accuracy your big thing? Calculate how big a step will be with a 1 start screw and see if you can deal with 5 start or something else.

As far as 'do you have to...

On MechMate.com they normally suggest using a gear reduced stepper with a 7.2:1 ratio and 1" diametrical pitch spur gear to drive a rack.

Does that help?

It may seem hokey, but go take a look at the ShopBot Buddy machine. It uses a 'stick' (rack mounted on the bottom of a spoil board) that keeps the board alligned. That machine is effectively a...

I have read of some individuals in the sign business having a 'price per square foot', plus a design fee, plus install.

Your time is worth more than the materials, and if you 'roll in' your design...

There are plenty in other posts in this forum. ... Start pressing the back button and read! ... There is a lot to see, read, and learn.

You are still responsible for whatever you do with them.

On the lasersaur pages, the laser and power supply are about $800. The rest of the stuff pushes the price to the $4K to $5K range. Some of it is mechanical, some optical, some electronic. So...

Please take a few minutes and update the EMC2 Wiki (or somewhere!) whatever you found that is confusing or obfuscated! ... I'm following not to far behind! :)

From someone that knows nothing, it sounds like you have some seals blown if you are spewing oil or coolant (or even leaking them). From folks I have talked to with spindles, they don't normally...

Given motors are rated similarly, and the physical size doesn't matter, what are the reasons to choose say a NEMA 23 rather than a NEMA 32 stepper motor? OR a NEMA 23 over a NEMA 17?

They would...

Lasersaur

Follow that project for a while. They are doing a open source laser project. It looks like they are getting close (think several more months) and should have plans available. I think...