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Hey Gerry. Indeed. I've not been here in years. I've got the bug to build another machine again. I was just looking back through some old threads. It's good to see you're still here :)

11 years I waited and not one reply :violin:

Very cool project. I shall certainly be following along.
What size work envelope would you say the mobile VMC will have, roughly?
I'm sure I won't be offering you advice during your build, but...

Thanks for the info. I have read a few threads regarding welding, stress relieving and normalizing etc.. I think the bolt together suggestion sounds like the best bet for those steel bars. I'll...

Hmmm. I've not really determined anything yet.
I'm hoping to use a 3 phase AC motor with inverter drive for the main motor and probably steppers for axis locomotion. The spindle and chuck are...

We're abandoned? Oh no.... :drowning:

The problem with just one of the pieces of steel is that it's not tall enough on it's own to fit the Z axis ball screw to. One piece is 80mm x 40mm. 80mm x...

Everything has been feeling a bit "virtual" so far, so I went in the garage and had a bit of a tinker with stuff. Just trying out a few ideas with the real parts rather than CAD. I'm wondering if I...

I've measured up and modelled all the linear rails I have, except for the very smallest rails that only have one carriage on each rail, they don't appear useful for the lathe or mill.
I still have...

Yes, I have the Align 450XL CCPM. I just wish I could fly it better, or at least crash it a bit softer. It must be 2 years since I last took it out.
The heli in that vid is a Hornet II, nice, but...

Thanks for that link regarding alloy properties, that's going to come in handy if I need to buy some stock.

Buried treasure indeed. :)

A few hours ago I turned up some 3 phase motors and three...

The heli is a T-rex, electric jobbie, and I'm useless at it. :)
I have no idea what grade the steel is, I found it in a scrap pile. I have no engineering background at all, so even if I knew the...

Hi John, it's good to be back on CNC zone, it's been a while since I frequented the forum, but I have an itch and it has to be scratched.

Those are some good questions and I have been giving them...

I started modelling some of the parts I've collected. There's a fair way to go with these still and I think for the rest of the parts I'm going to do more basic models. I don't think I really need...

Thanks for that information Jason3, that's encouraging.
I have found some solid steel bar that may make a nice bed for a lathe although it may be a bit on the small side. It's dimensions are 80mm...

Most of the parts came from the UK, a few from the US when the exchange rate was better for buying, and a few from Malaysia. I've been picking up parts for 2 or 3 years when I've found bargains. I...

Hello Guys. It's been a while since I last posted here, but recently I fancied building either a CNC lathe, CNC vertical mill, or maybe both. :)

I've been reading through some of the threads here...

Hi. Thanks for the kind words. :)

The digital readout/monitor I built from scratch. It's not finished yet though.
It's built around a Microchip PIC micro and programmed in C.

Yes I have...

Hi.

Yes the extra nuts are for balance, hence the different numbers of them on different studs.

The blades are solid fibreglass. I found them on ebay(UK). I'm in the UK.
They cost me £35 all...

Hi all. I've not been here for a while. I've built a new turbine since I was last here and have just started on another.

The foam blades were pretty bad to be honest. I made one complete one...

Hey Gallop, welcome to the zone. Sounds like you're off to a cracking start with some of the parts you've bought. Don't forget to post lots of pics of your goodies when they arrive and as you start...

I just installed EMC2 on my house PC the other day. Never tried it before. Apart from plugging a machine in, it seems to be working ok.
I want to give it a go on the garage PC with the CNC...

Digging deep.... You're not kidding. 3 years eh? It doesn't seem that long since I ran my first 3D part.

From what I remember, the 3D model was a demo model that shipped with Rhino3D. The...

Thanks Dave. There is no build thread. I'm not even totally sure what I'm building yet?? I purchased some sound recording modules, but they require the switch to be continually held down to play...

Hmmmm. Long story.
My daughter is called Sophie. She'll be 3 this week.:cheers:
She's disabled, both physically and mentally.

I'm making an electronic "communication aid" as it's unlikely...

I just finished milling a PCB. Not very exciting, and YouTube made it go all blurry.

<object width="425" height="350"><param name="movie"...

Hmmm. Pubs shut hours ago. :cheers:

OK. If you haven't found it yet, you can get it here:

http://www.microsoft.com/downloads/details.aspx?familyid=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=en

Hope that link works.

One...

Argggh. I didn't read your post properly. I see you did actually say:
the tooth to tooth distance at the pitch diameter
Sorry. You are indeed correct.

Well I think this thread is flogged to...

Man.... I'm never gonna get to bed at this rate.

Using a pulley with 26 teeth * 5mm pitch should give 130mm travel, for a whole revolution.

But..... It doesn't.
it's 130.0619mm

That extra...

3:30 am