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Not yet, I've been slacking and tied up with my day job. It's driving my friends nuts as the machine is 90% finished :-) and they all have projects waiting on it being complete.

I'm planning to...

I'm using a linux set up. CAD is QCad, cheap and easy to use. CAM is EMC2. The controller is nothing special. The motors are Nema34 size. Drives are Gecko. Power supply was a kit off ebay. In...

No,
Big blue Saw, emachine was too pricey for plain plate work.

That was the obvious assembly fault, I switched them round after testing.

http://www.flickr.com/photos/moir/sets/72157600119819806/

Well the belt drives and idlers are attached and tested. Seems to work very well. The steppers could have been hung under the idler...

http://www.flickr.com/photos/moir/sets/72157600119819806/

The project continues :-)

I now have nearly all the parts and am onto the assembly stage.

I hummed and hahhed but eventually...

What do you mean by CNC?

I would look at making something out of HDPE, there's some stuff on the web the hackaday and make sites spring to mind. Then use wax as a milling material.

I started...

I've been messing with software since I was a lad and professionally since '85. I've coded for Mainframes, Minis, PC Servers, Desktop, embedded etc et al. The one overriding hatred I have is for...

Hi,

I'm building a belt driven xy table, take a look here

I purchased my stuff from EconoBelt as usual I still spent the same but bought better stuff :rolleyes: I went for wide L belts...

The second link is very helpful, the problem is I don't even know what level of accuracy I need :confused:

The sensor I have has 5,000 cells in 35mm, 7microns wide, I've already hooked it up to...

Hi,
I have some optics questions, feel free to ignore but any help would be appreciated.

I'm in the process of building a laser distance measure, similar to the stanley max and leica...

I really like this set up :-) Even for my cheap DIY router it's given me ideas.

The only problem I see is that the actuator is not mounted to the router body but rather suspended above the router...

I think they're be fine for a wood router of this size. I've shimmed them and can feel no play, I use a silicone lubricant on the beams and everything slides smooth with no binding. The important...

Total for three plates in 0.25" Aluminum 6061 plate was $75. So $25 a plate is a good guideline. If you can order a quantity of 5 then the price halves.

I was happy with the whole process, the...

The earlier posts outline the design, basically 80/20 framing and slides coupled with belt drive. If you trace back there's a link to flickr site with the pictures.

The only real constraint was...

Well another week gone and more parts arrived. McMaster and QTC Gears. It pays to shop around for the drive train.

I still haven't sent the motor mounts away for cutting, should go this week. ...

Joe look up real quick...

yep that's Mcgyver's point, I thought I'd point it out as you completely missed it the first time.

Funny.

I remember back in the UK back in the early 80s as I walked past the factories at closing time I could tell the trades by what they wore.

Machinist blue pants and blue shirt
Snr....

Average does not always = median. IQ distribution has not been proven to be a bell curve.

Hi,

took a look at your site and I have a question. You seem to pay no heed to aerodynamics, surely some sort of streamlined body/chassis would be a lot faster? The set up you have seems to be...

Have you tried Big Blue Saw ?

Look on Google for 42BYG & 42BYGH

I'd start at 24vdc and 0.5A, I'd also make an arm with weights to measure torque.

Nema 17 are not useless, you just have to size the motor. I use a couple on...

I'm building my first cnc machine, currently looking at pulleys and belts from SDP/SI and you come along and show me how to make my own pulleys with a cnc machine.

Chicken/ egg catch 22, arghhh
...

Well it continues :-)

I just scored the slides from 8020 I wanted, should have them for this weekend.

I picked up my breakout board, so my electrics are complete.

Another lesson learned was...

I was looking at adding this as an xtra axis on my table.

Basically, you want to step the rotation as a router passes up/down the length. That way you can carve any pattern into the piece. So...

Sounds like heaven.

Of course being the twisted sob I am I would wonder if I changed the composer would I get more or better work from my staff. Rather like restaurants who play up tempo music...

No not Nasa, although if you know of an opening in the JPL... I'm just a dev with way too much experience, everything looks like software to me :-)

The reason I think drawings could be treated...

Hey something I know a bit about :-)

I work as software guy on large database systems.

The problems you are having are related to using the same field for more than one purpose, that's bad :-(...

I've seen some designs on this site for just such a set up. I think you need to look at how the axis are moved and the bearing loads.

As for work holding, double sides tape, vacum table etc all...

If it's bolted down it might be alright.

My advice, start digging.