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Well, my mill is now up and working. I checked the watchdog signal in pin 16 source to pin 12 ground on the LPT cable and it was there but had a lot of jitter. It could be that Mach3 doesn't use a...

Hi anyone,

I turned off the Charge Pump and the axis are moving so something went wrong with Mach3 or my main board EPP port. Does anyone have experience with the EPP port? How can I check if...

Hi,

I was cutting a part for a friend out of AL6061 T6 Aluminum and using a Ball End Mill (1/4 inch) so the cuts where taking a long time. I left Mach3 in "Offline" mode from the "Program Run...

I have located one of the aberrant moves generated by BobCADCAM V29 but not shown in the simulation of the part.
The moves, one to go way off part and one to move the head back to the part. Oops,...

Well, can't sleep.
I was able to zip my files and attach them to this reply so my .nc file and my .pst file are attached. I took a picture of the Mach3 screen showing the two moves in question. They...

Hello BurrMan,

Sorry, it's 2AM and this website is not allowing me to upload my post or nc file.

Frustrated at this point and I can't give more information. Maybe the site will allow upload...

Hi jrmach,

G540 24V 3.1Nm motors on all axis connected to 5 to 1 ball screw controlled using Mach3 licensed. Motor movement is 1.8 degrees per step. Table is 15(X) 4.3(Y) and 9 to 2(Z)...

Hi anyone,

I am getting my post processor under control. It presently generates aberrant moves that DO NOT show up in the simulation. Very frustrating as I am continually modifying my nc files...

Hi Mactec54, 109jb and Pariel,

I fixed my problem with the bearings. I purchased a spindle and bearings from LMS and those were not good parts for my Grizzly Mill. I ordered and installed...

Thanks Mactec54,

I looked up Bearing preload and it does seem like that is the reason for the heat.

Hi,

I am almost done with CNC-ing a Grizzly G8689 Mini Mill. I have X, Y and Z Steppers running, I added a belt drive and replaced the bearings on top and bottom of the spindle. I removed the...

Zenji, Can you supply a link?

Due to a stroke, my left hand is faster then my right.

Nope, not confusing absolute or machine offsets with Work Offsets. As Ger said, my X movement and Y movement was set backwards or in the wrong direction.

I changed the direction and ran the .nc...

Thank you. That might be the problem that has plagued me foe a while. I'll change the homing to the other direction (after mounting more limit switches) and see what happens.

Thank you for you're...

Hi All, especially the seasoned CNCers,

I have A home build Grizzly Mini Mill with Gecko controller and Mach3 software. All was going well until I started using G59 to set tool Offset and G54 to...

I have been using BobCAD-CAM since v25. Robust but buggy.

I brought a Solidworks part (.SLDPRT) in, made a complete part out of it and tried to translate and drag to my 0.0.0 but drag does not...

I do not have the same controller as you but mine requires a pin to be grounded to enable the servos. If your positions are changing on the controller (numbers), the hardware is sending the control...

Hi,

I have a Grizzly G8689 Mill (A small Mill). It is CNC'd and fairly accurately aligned. I have a part I need to make for a face mill. I choose to make the part out of Stainless Steel 304. I'm...

The Locking Screw that holds the Aluminum ballnut had worked lose and the gib nuts were also a little lose.

Thanks Whizbang. I lost a Motor drive in the process (Maybe it got a little cold in my...

Hello everyone,

I am working on a Grizzly G8689 mini Mill turning it into a CNC. Nema23 200oz/inch steppers, Mach3 control SW and the CNC conversion from CNC Fusion. The problem I am having is...

:idea:I found that the Y axis ball nut was lose. The play was causing major issues with the calibration of the Y axis. So I now have the Y axis tuned within 0.001 in one direction and barely...

I need some advise. My Y axis moves more in the negative direction than the positive direction by around .015 inch. Here is what I am doing:

1 - I setup my 0-1 analog indicator and get the Y axis...

I got it by calibrating my X, Y and Z axis. kawazuki just affirmed that it was a valid calibration. On my first pass of the calibration of all three axis I had the "steps per" set to 2000. When I...

kawazuki, you were right on the money. I am now down to .0005 inch which is the accuracy of the digital meter I have.:cheers:

kawazuki, thank you for confirmation that 10K+ is the right setting and yes, it is coming in at about 10160 +/- a tiny bit (less than 2). I did check out Mr. Hoss' videos and I was following them...

Hi all you pros,

Thanks for your advise before yu give it:cool:

Here is my question:
I have been updating my Grizzly Mini Mill G8689 with a CNC Fusion kit. I had to Lap the X axis ways...

Ah the answer and just a few more tweaks and, oh this is the information I was looking for.

I have heard of the bar method before but did not understand it due to mainly no pics.

Very cool....

Hi everyone that reads this,

Any input is much appreciated. Here is what I have: I have a Grizzly G8689 mini mill. The head is at a slight angle to the table resulting in deeper cuts by the...