I use the Auto touchplate but when I use my 1/4" endmill my X + Y zero seems to be set at the bottom back and right of the endmill, NOT the center. I.E. my cuts are .125 skinnier on the right and back project. Gotta be something simple I’m doing wrong. Can someone help me with this?
BTW…I guess I posted this in the wrong section. I’m using Gsender and Vetric Pro, on a Longmill 48x30 MK2.5
@KaneAtious I don’t use the auto touchplate, but the only thing that I can see quickly is set out here
You’ll also have the option for choosing which tool you’re using, either “Auto” or “Tip”. Auto measures the diameter on straight end mills and bits. On the other hand, Tip uses the tip of v-bits, tapered bits, and ball nose bits touching against the bottom chamfer to determine its position. Using the correct setting will ensure the most accurate probing for your bit.
If you are using the “auto” setting with your straight 1/4" end mill, I am out of ideas. 
I checked, I am using the auto setting, not tip.
@KaneAtious I just knew that it couldn’t be that easy. You may want to open a support ticket with Sienci, especially if no one here has any insights.
Edit: To be clear, the end mill you are using is just a straight 1/4" end mill, yes? For fun, it would not be a bad idea to try a 1/8" simply to see if the issue is consistent.
Its pretty consistant. I didnt want to make it all complicated by adding that my bowl bit was the same way. This is consistent across three projects, all bits, all .125 over cuts on the left and .125 less on the right, and .125 undercut front and .125 overcut back
clear as mud…making a platter. rough cut finished at 1.250 wide in the front and left sides and 1.0 at back and right sides. All bits, all three projects. I know I can temp fix t just by offsetting and doing an outer circumference pass to make it all even, but that doesnt tell me where I’m going wrong.
@KaneAtious If you don’t mind, let’s back up for a minute. After you using the touchplate, remove it, and hit “go to XY0”, the end mill is not centered on the corner you used, correct?
it is perfectly centered at the corner. Now you know why I’m lost.
@KaneAtious OK, if is perfectly centred, your issue is not the touchplate. So, disregard everything that I’ve said previously. I should have asked this question first.
Now, we can try to address the real issue.
- What CAD/CAM software are you using?
- What is your machine and what post processor are you using?
- What toolpaths did you create that resulted in the “skinny” results?
1 Like
finish inner.gcode (10.8 KB)
finish perimeter.gcode (3.3 KB)
rough inner.gcode (67.1 KB)
I’m using Vetric Vcarve Pro [newest release}
Gsender {newest}
Longmill MK2.5
My outer perimeter accidently deleted but its off the same
@KaneAtious No offence intended, but I don’t run anyone’s gcode. If you post your .crv file, I can take a look. If you prefer not to, no worries.
Where are the .crv files found?
The .crv file extension what Vectric uses when you save the project so it’s wherever you saved your project.
1 Like
wallbrd.crv (550 KB)
This isthe only one I found related to my project
1 Like
@KaneAtious I’ll take a closer look this evening, but I do have an initial question. Why are you cutting your circumference cut on the line? That will reduce its size by half the diameter of the end mill? If this what you want?
I immediately noticed that when Idid a profile run and adjusted for it. Yes, I wanted outside
@KaneAtious I believe that I’ve taken this as far as my competence allows. I don’t understand your toolpathing. You run a roughing bottom to a depth of 1.25". Then you run a finish bottom to a depth of .03". Assuming that you don’t reset the Z0 to the bottom of the pocket, the finishing bottom toolpath can’t cut anything.
As for your original issue, the only thing that I can see is that, in the file, you are cutting on the vector, which will reduce the outside dimensions of the piece by 1/8". You are doing the same thing with the inside profile cut, cutting on the line, which will push the pocket size out by half the diameter of your bowl bit and which is likely why the preview shows a ridge on the edges of the pocket.
I’m not saying that you are doing anything wrong. I’m only saying that, with my knowledge limits, I don’t understand it.
oh NO, I am definitely doing a whole lot of wrong. I’m as green as fresh grass here and learning as I make sawdust. I have learned the "cut on/in/out line thing, that was messing me up. I’ve also learned that need to watch a whole lot of videos on Vetric. Thank you very much for humoring a newbie, you’re great.