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Theoretically speaking that makes sense as hardwood should amplify the slippage if any. However i don't think this is the case because, when I do an air cut with 0 load and the spindle turned off it...

Hello and thanks!

As for the design in the 39 picture they should be ovals/elipses. I have attached the picutre showing axis directions and I am attaching the GCODE (zipped) for the circle cut...

I am having what appears to be the same issue. Anyone else know of the solution to this?https://www.cnczone.com/forums/attachment.php?attachmentid=446566&stc=1

Alright guys, in the past few days I have accomplished and learned alot! So, as mentioned before I noticed that the x axis motor was slightly stalling at different intervals certainly effecting cut...

Finally got the jump on camera. Notice at around 5 seconds in the x axis hesitate, clunk sound and you can see the belt in bottom right corner jumpTapatalk Cloud - Downlaoad File 20200724_165202.mp4...

This is an example of the contour cut, in a circular pattern with no step loss.

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Alright, so to answer a few questions it is birch veneer plywood from the big box stores. I decided to take on a larger pocketing job and it seems to loose steps only on pocketing jobs which is super...

Alright, so I think I am going to bring feed down to like 5ipm and let it run to see if it cuts as it should. That would prove mechanical then, right?

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The thing is the contour is perfect on circles that do not have a pocket in them. I am cutting from plywood and it isn't moving as the pockets are done first then I cut out the contour. So, it is...

Here are the pics of the machine itself. Let me know if you see something that sticks out. I have done flex testing on gantry etc...all seems pretty secure. I guess I could look into replacing the...

It does seem that way now that you mention it. Looking at scrap cut offs it seems to constantly loose steps in the belly of an arc. I have recalibrated the motor steps in mach 3 and it is dead on...

Hello,

Bit of a strange issue here and looking for advice on how to troubleshoot. I am using a custom built CNC and have not run into issue with cutting 2d contours of circles or any other shapes...

Yes, I am confirming this on the first/main screen of mach3

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Well, trial and error and research would say that info not need it enabled. I have went through everything I could possibly think of....steps per unit, code, m3 settings.....it will not accept any...

No sir, should it be?

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Thanks, nothing there. Seems that I have somehow overcome that issue with modifying gcode and removing home command on initial lines..

What I can't seem to get over is, jogging z axis works fine,...

Alright, Z driver is in. Working but now after testing I am noticing a stupid issue I am sure..... when I home Z the machine coordinates are not showing 0, they are showing -0.86.....

Other...

Guys, really appreciate the help here! You have saved me significant pain and suffering!

I have purchased the new driver boards and will post results of the install. Thanks again!

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Thanks, so i was thinking that and did a little research and believe I have found the schematic. Question is, those ribbon cable wires are a super small gauge do you think they will suffice for the...

Figured and Thanks! Just how this is expected to turn out lol!

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I should add I tried wiring already and no output to motor. I co firmed after blowout that motor is working attached it to another board and it works. So I know the problem is either wiring board or...

Guys, buddy of mine found a probostep board he had used on a 6 wire step motor setup. Since I burned my other board out he gave it to me hoping it would work. Question of the day is how do I wire the...

Thanks, going to have to replace drive boards because I literally cannot find a replacement. Probotix said the company stopped making those 4 years ago[emoji35]

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Ok, do you guys have any suggestions on breakout boards?

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Would it be hard to migrate all four of these boards to those? They do not seem to be as "plug and play" as these ones are. By the way, super hard to find online...

Appreciate the info, lesson learned!!!

I have literally been working on this thing all day long and the one time I slip and not turn it off...BOOM. Thanks, and I will update the thread if I can...

Ger21 - I did have a question for you. How did you determine that the driver boards need to be at 1/8 microstep?

Appreciate all the info! That was really helpful in understand the RCA of the issues. However, seems as though I have now created another problem for myself as you can see in the other post!!!!

Seems the step size on the board was wrong, thanks!

Thank you for the link! The drive boards were set to 1/4 microstepping and the voltages were all out of wack. Seems as though it must of been troubleshot before me and not working as expected. I...