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When I look at YouTube - CNC Stomp Pad 5 - Mach 3 G-Code - Learn CNC Plasma Cutting

When he loads the G-code (at 1:25) it fits in the window.
When he starts running the program (at 1:30)...

Is there a way to change the zoom rate on Mach3?
when I display the toolpath the work to be done appear as a dot and I have to roll the mouse wheel for ever before I can get my work to fit the...

This is the resistor I removed from #2 on your attachment to cut out the clock to TQ2 and I reused it as a pull-up based on the MOD (specified in red)



I see what you mean, further testing...

I was not sure 100% about that but SW1 makes no difference in the operations if it is on or off.

Mike

I got mine from Goodluck as well...

I bet they decided on the name after selling a few of these boards. :D

Mike

Hi Neil,

Thanks for your suggestion but that was my first approach but really my issue was the cheap Chinese driver board. With the fix (see other thread) it's working at half the speed but its...

What is your dip switches setting?
I believe the MOD will cancel SW #1 so there will not be 100% of current doing to the steppers. I found the best setting for me is:

1 - NC
2 - ON
3 - ON
4 -...

If anyone is browsing this thread in search for a solution to fix the multiple problems of Chinese driver boards, see this thread and read it to the end as there are 2 updates from the first post.
...

Good news,

I see no difference between using 12V or 24V power supply, I would expect the difference to be in the steppers having more power although I don't need it on my installation.

With the...

I said I would post my results tonight so I don't have any final results yet but I have some improvement with the change.

I will try to make a long story short... I had a lot more trouble than the...

Thank you Lasik for the update.

Drools,
I am expecting some 74HC14 by tomorrow so I will post back my results tomorrow.

Angel,
I bought this board on ebay, I sent them an email with my issues...

Hi,
I have a 3 axis version of the same driver board and after going through some nightmares I was about to order a more expensive board but I will try your workaround before.

While I am waiting...

Taking another look at the driver board it indicates 12V to 36V.
So I put back my 24V supply which can be adjusted from 23V to 25V but really this is more troublesome, the stepper sounds like a...

UUU and Mactec,

Your suggestions might work but I feel like I would be going around the problem instead of resolving it. At this point I realize something is obviously wrong and it is either the...

I have a Pentium 4 processor 3.4GHz with 1 GB of RAM

I do see a few spikes in the drivertest
With 35KHz it looks like this:
113717
And with 100KHs it looks like this:
113718

I do not...

There is nothing loose. The missing steps can be heard when the stepper screams as soon as the computer beeps when the Queue Depth is no longer buffered.
I can set my code to do 100 loops and it...

My acceleration was set to 2, I tried to set it at 1 and also at 4 but still got the same results.

I had previously started another thread and I guess I should have kept it going but I figured I...

Yes you are right, I tested again replacing G1 with G0 in my test code and I am loosing 0.4073 after 50 loops
Why am I loosing steps on the G0 moves and not on G1?
Do I have to slow down the...

I don't know where to look anymore, here is my problem:

First off I am at my first steps in generating something with my home made CNC. I was able to test with engraving a picture using Microcarve...

I found the problem!
Well I didn't really find the problem but I resolved my issue so if anyone run into the same thing, I reduced the voltage from 24 Volts to 12 volts and I have now all 3 axis...

I have gone over everything (that I know of) and I have set the switch settings exactly the same for all 3 axis.
X axis working well, Steps per=32000, Velocity=24 Acceleration=1.5 and it is...

I don't have 1/4 in the options.
So I tried all options.
Having 32,000 / Velocity 24 / Accel 1.5
Testing the X axis
Setting Microstep to 1, the travel is 8 inches
Setting Microstep to 1/2, the...

Yes,
This is what I have.
113242

Thanks for the response Gerry,
I set MicroStep to 1/8, I set Accel to 5 and going from 0 to 33 velocity I got from nothing to fastest. setting velocity from 34 it starts slowing down the motor as i...

I have been playing around with some settings but I think at this point I am working blindly and before I do something very wrong I figured its time I ask for help.

I have stepper motor and lead...

When I said I didn't want to pay $20 it also meant I don't want to pay much for this as it is just a learning process and what ever I use will not fit my next CNC so even $15 is still too much.
...

I was doing it the other way around and that might explain the backlash I was getting.
I will try your suggestion.

Thanks

Mike

Hi,

I hope I am posting this in the right section.

After browsing this forum, Googleing, daydreaming, spending nights thinking instead of sleeping I have decided to build a small CNC. I have...