Thanks i will give it a look!

I am also possibly interested in this! Following!

Dubstar, So if you take your OHM meter across the 0V and 0-10V on the sprint card it smooths out? That's really interesting and makes me believe it would be noise also? I did have something interesting happen the other day related to this topic. As you know I upgraded my homing sensors and everythin...

Seems like this thread has lost some interest. Anyways I ran my first part last night with my conversion. Everything is done except my spindle reverse problem mentioned above. I have a few other little quirks I have to figure out, such as the toolpath not showing in Mach 4, but that is a different d...

So I figured out why my spindle would not drop below a specific value. I had to adjust the minimum rpm screw on the Sprint spindle board. By looking at the voltage across the tach wires and knowing 9.5v DC = 1000 rpm...I was able to get the speeds close by setting the spindle speed in Mach (m3 s1000...

So I have two questions regarding spindle setup. My spindle responds to m3 and from the sounds of it reaches close to the 4000rpm... But if I set the RPM very low, say 250... It does not appear to go slow enough. If I put in a spindle speed of 10... It still spins the same speed as 250rpm. Why does ...

So I got the spindle hooked up and spinning but I am encountering something I can't explain. When the spindle wires are not connected into the BOB, I get 10v between the spindle ground and the spindle +10v... The minute I plug in the wires into the BOB the voltage between the spindle ground and the ...

Thanks moray. I ordered the same proximity sensors you did. Hopefully I will get them in the next few days and install them this weekend.

So I decided to do the conversion to Mach 4 also. I started hooking things up last night and I think everything is making sense except I am a little confused and cautious with the spindle board. If I look at the writing on the spindle board pin 1 says +10v, pin 2 says min (ground?), And pin 3 says I...

After a little research I have answered my questions about proximity sensors being the homing sensors and the output voltage is dependent on what power supply you use to power the output signals. I still haven't looked to see if my proximity sensors are 3 wire or not, or traced the wires to determin...

Moray, I read through most of your post on CNC... Very nice write up! Unfortunately at this point I don't understand it all :shock: . I am hoping to make the conversion as simple as possible, much like the OP. From what I understand, the leadshine mx3660 does Allow you to replace an individual drive...

Moray, thanks for the info! Very informative. After a little more reading I am considering the leadshine mx3660... It has better drivers than the gecko and more I/O...And since I live in the States it is pretty reasonable. The only downside is it appears it is 5v signal logic. Then in thinking of pa...

After doing a little more reading it seems like the g540 might be a good choice. I didn't realize the smooth steppers could run multiple BOBs if needed (told you I was new at this!). Do you have specs on the current steppers? How did you decide on a 48V power supply? What amperage?

Well knowing you had the same issues I am running into really makes me want to give this a shot. Though looking at the input/output limitations for the gecko 540 I am thinking it may be better to go a different route with the BOB. Maybe a pmdx or something.... They seem to have plug and go pieces to...

My triac is not dos, but my micromill is. You can get the legacy software here.

https://website.denford.ltd.uk/dos-vinta ... formation/

I'm guessing the "triac.zip" is what you need

Looks good! First part I made recently too was also a holder for the easy change tool holders. You seemed to have finished this quickly... It gives me confidence maybe I can do it. So all you purchased was the smooth stepper and the gecko 540? Anything else needed to make the conversion besides buyi...

That's good! So the gecko 540 was able to interface with the original spindle controller easily? From everything I have read this is where most people have problems. What was the issue with Mach that was causing it not to work?

Are you planning on replacing the steppers?

So that was my initial thought also. I have taken off the cover and it is a pretty simple setup. From what I can see there are only bearings for the spindle, which feel tight with my hands, but that doesn't mean that still couldn't be going bad?

Hi all, I am somewhat new here with my triac and everything seems to be going well except occasionally the spindle makes some weird noises. I uploaded a video to YouTube the first half is the noise which happens occasionally (maybe for 5 mins every hour) and the second half is how it sounds the rest...

I just got a triac recently running on VR milling...I will be following to see how hard this is. It might be on my list of things to do in the near future.