@cyberreefguru Great walk though, and awesome for including the gcode and calculations.
Got out yesterday and decided that I would check things out. I used a thirty-six inch ruler, taped to the bed, and a Whiteside SC50 22 degree carving liner. I centered the tip of the bit to the one inch line. If I moved five, fifteen, or whatever inches when it stopped it was dead on. At least as much as my old eye could tell.
Hi Chad - I have a Woodpeckers ruler and I got a machinist ruler from Amazon - they line up to each other. Are they accurate? I hope 
Both were fairly expensive (for a ruler) so Iâm not sure where to source accurate yet inexpensive rulers. Maybe others here have suggestions.
Rick - thatâs great. Mine was very close out of the box (1/32 x, 1/64 Y) - again, within the limits of my failing eyes as well.
-Tom
I bought a $3.48 aluminum 36" ruler from Lowes yesterday. It has inches and mm. Considering this exercise is âby eyeâ, Iâm hoping itâs goodânuff.
Maybe Iâll take my WP ruler into the store and do some spot checks
-Tom
That Woodpecker metric set, Iâll put that on my wish list after the wife calms down from how much I spent already. 
If anything, Iâll use this method just to make sure X travel = Y travel equally, so a circle is truly a circle, a square is a square, etc. Or to match the travel that my laser does so they can be used with each other easier. That wonât require an accurate measuring device, just some transferred marks.
Thanks for the tutorial!
âAccurateâ is a relative term - someone doing rough framing will have a different definition than a steel-working machinist. For CNC work in wood, what youâve done is certainly âaccurate enoughâ!
@Spes - the farther you travel, the more error there will be. My machine was off about 1/16" across ~30" of travel in both x and y. Not a big deal, but worth correcting IMHO. If I only tested 100mm (~3.9"), the error would have been imperceptible to the human eye - something like 0.005" rather than 0.0625". If you donât need max precision (or donât care so much), then you should be good to go out of the box. The only reason I did the test is because my SO2 (and X-Carve) was off by over 0.25" over 24" - that needed to be corrected for proper operations. Hope this helps.
-Tom
@cyberreefguru
How did you go about squaring up the actual attachment points of your machine though?
I just finished some preliminary testing of my new 1F build with a dial indicator.
https://forum.onefinitycnc.com/t/re-masso-g3-based-build-f360-pics-and-1f-photos/7114/8?u=tmtoronto
For those of you wanting to check the X and Y axis but donât have the ruler needed hereâs a cheap solution. Iâm sure they are made in China and arenât as accurate as the ones they sell for hundreds of dollars but for this Iâm sure they would be more than accurate. Iâm sure you can buy them from Amazon.
I have just recently set up my onefinity woodworker x35 and the first cut I made was the team onefinity cut that came with the controller. The cut came out great and even looked better than the cut that infinity made that came in the box. I am evaluating Vcarve desktop and decided to try out one of the sample files âAvalonâ to take a look to see if everything works as I would expect it to. I saved the file as metric using the metric onefinity post processor and ran it one the onefinity. The result is what happened. It appears to be good, but not great. Does this situation appear to be something that I need to look into the travel-per-rev setting, or is it something else perhaps?
The red arrow indicate edges that I feel are not consistent with what should be the result. For the font they use in the file, all the widths should be the same. Green appear to visually be correct. The far left side of the pocket is obviously the worst edge. Iâll definately use @cyberreefguru procedure if this is what I am encountering. Being a new user to CNC Iâm really not sure though.
Tips or suggestions would definitely be appreciated 
Thanks
-Chris
This does not look like a travel-per-rev issue to me - Iâd expect to see a more uniform âshrink/stretchâ behavior. The entire piece would be 7.5" wide instead of 8" wide, as an example.
Is this all a single tool? Did you zero x,y more than once during the cut?
All of the issues seem to be in the X axis (left-to-right). A good test would be to pocket out a square and measure the results. Then Iâd try a circle - both as large as your caliper will measure.
Maybe - your X-axis could be losing steps during the cut, slowly causing the piece to drift left. Did you hear anything strange going on - especially in areas with tight curves - during the cut?
Interesting - this is not a ânormalâ failure.
Hi Mike,
Thanks for the info on possible next steps. This morning I ran the same cut file without the router and dust collection to listen to the step motors. nothing sounded strange or off at all. I did check the white wiper on the far right x axis and when I pinched it the screw drive stopped but the stepper kept running. I found a video discussing how to check and tighten the coupler on the x axis.
Sure enough when I unscrewed the stepper motor, the motor fell out. The set screws were completely loose. I finished the steps in the video and reran the cut again. Success! It came out just as I would expect. I will run a circle and square pocket later to see if all is good. Thanks for the help!
-Chris
Great job getting to the bottom of this! Iâm glad I didnât have to figure something like this out when I started. By the way - I find VCarve to be a great product, Iâve ended up going all the way to Aspire.
Hey Chris, hey all,
Glad to here that you reached success quickly. Errors like this can be discouraging if they appear on the beginning of using the machine.
Hey @AndyP, are you still thinking of capturing frequently upcoming topics in a curated repository/wiki? If yes, I immediately had the thought that âloose set screws on stepper axle/ball screwâ is one that did not appear the first time here, and that it could become part of your collection.
Hi @Aiph5u, yes, I am. I only started testing a set-up last night using GitHub (so people can contribute) and Obsidian Publish. But progress stopped while I try to diagnose and fix a somewhat random RCD trip on the circuit that feeds the shed with my computer and CNC 
. I have logged the request - cheers.
Hey Andy,
Didnât you like the wiki function of this forum?
What I would prefer over github.com for ordinary users is the mediawiki software. But itâs a software, not a hoster.
@Aiph5u, you will need to help me understand how the forum wiki works.
You see the little wrench on the bottom of your own postings? It appears after clicking the three little dots. If you click on this, does âMake wikiâ appear? If yes, click on it!
