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Hi, I am in the late stages of converting my Chinese benchtop mill to cnc - Yellow Machine Mart mill. My problem at the moment is that I cannot find a way to control the spindle remotely. The spindle...

Thanks, point taken - it does seem a bit confusing when 2 data sheets issued by Toshiba for the same chip have different values specified.... Now, where's that calculator...

I've just bought some of these drives before I found this thread.....
Where do you get your Vref Max figure of 1.95 volts from - the data sheet here...

Hi, Does anyone have any files of a basic farm tractor - 3d if possible. Thanks, Ian

Hi, does anyone have a drawing / cnc / cam file for a 3D tractor design please - I want one to make a light pull. thanks Ian

HI,
Are you sure about the maths for the number 7?
Ian

Hi Danny,

That is where I got it from - a password protected exe file and a password email from Mechsoft. Maybe they have changed things?
Ian

I've installed what purports to be FreeMill but the program seems to now be called gsimple 2.05. It looks as though it should be quite powerful but I can't find any way in it to open .stl or .3dm...

Thanks Danny, Nice links, I think I should find enough to play with there......
Incidentally, I'm using EMC2 with a home-made gantry mill so sorting out the code shouldn't be a problem - once I've...

Thanks Danny,
Your face is actually not unlike what I was hoping to find - something like a mask that could be cut out and stuck to the front of a foam ball, then the whole lot dressed with fake...

Hi guys,
Anyone got a file for cutting a 3d face in decent relief. The grandson has to make a puppet for school and I figured that if I could cut him a reasonable face out of foam he could hack...

I often have to reproduce parts which have sections knocked off or rusted away.. The easiest way to do so by far is to use a CAD program such as Rhino which allows you to use a photo/scan/drawing as...

[QUOTE=widgitmaster;172100]I used the same concept for the delrin nut, by simply boring a 2" diameter hole in the center of the slide block, and pressing a solid plug of Delrin in the hole! Then I...

Hi Peggsy, welcome to to community....
I'd second the idea of using commercial stepper drivers, there are several microstepping drivers on Ebay regularly which are not only better that you can...

Thanks Pixman, I'll look for them...

Thanks, I found an editor etc. there called WinAVR which looks like it will do the coding - now I just need to sort out a cheap programmer...

Ian

Thanks, I'll do that. Sorry about the double post but I didn't know which forum would be most appropriate.
Ian

HI, I'm wanting to have a go at making a sefvo controller and was thinking of using the ELM DC servo controller design at http://tinyurl.com/yur36m which uses the AT Tiny 2313 PIC chip. However,...

HI, Can anyone, especially in the UK, point me towards somewhere I might get HSS slitting saw blades in 1" to 1.5" diameter and 7 to 10 thou thickness ( ideally 0.15mm) please? Thanks, Ian

Thanks, I'll try Alan's amended routine as soon as I get a minute.. Ian

Thanks Ken - you are correct. I removed them from the script and EMC2 loaded it - then wouldn't run - just sat there looking stupid....dohhhh!!
Ian

Thanks,
I did find a bit more in the EMC WIKI and made a script as below..
%
#1 = 0.2 (finished diameter)
#2 = 0.05 (feed step size)
#3 = 1 (total depth)
#4 = 0.1 (safe X)
#5 = 1.4 (stock...

I tried using Mach3 but gave up and went onto EMC2. The main problem I had was that I couldn't stop the axes losing steps. I know my spindle motor is a bit electrically noisy but I'm using shielded...

Hi,
I'm new to EMC2 and have a problem. I don't understand how I can use a subroutine in the g-code supported by EMC. What I am trying to do is grind a part which is mounted vertically on a rotary...

Hi, I am just completing a 5th rotary axis - a rotary table to be the 'C' axis? parallel to the 'Z' axis - for my little cnc mill. How should I go about programming for it? What software would be...

Hi, does anyone have - or could maybe point me towards, a dxf or g-code file for routing a L297 / L298 bipolar stepper driver PCB please?

It seems a bit pointless going through all the hassle of...

Thanks guys, all good information but I think you may have missed the info on the type of gears I'm looking at cutting. these are gear wheels and pinions for watches - something like 60 teeth on the...

Hi Steve, I don't see why wheels generated in this way shouldn't be good enough to use straight away although it, of course, depends upon the size of steps. In practical terms, I would expect to have...

Hi, I'm new to this forum and to cnc and I'm just in the final throws of scratch building a small but sturdy 4 axis cnc miller. One of my main interests is restoring antique watches and small clocks...