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Post by jameswood on May 8, 2015 21:56:14 GMT -8
While carving a piece, the machine skews off to one side, right to the limit switch. This has happened more than once. In this case, I started a letter "D" but stopped it partway. Any ideas?  |
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Post by Deleted on May 10, 2015 3:27:14 GMT -8
James, could you post a pic of the image you used to create the I-Picture file for your carving. What settings did you use ? Such as depth of cut, carving speed and the type of software you are using to create your images.
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Post by jameswood on May 10, 2015 9:01:21 GMT -8
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Post by Deleted on May 11, 2015 3:40:12 GMT -8
View AttachmentThe attached Word document has a screenshot of the settings I used -- pretty standard. There are 2 things I see, one is that your feed rate per cycle is over 8 times the depth setting of .118. The feed rate should match your depth setting exactly for single pass cutting, which is the preferred method everyone is using due the fact that re-positioning for the second pass does not always give a clean result, as any inaccuracy usually ruins the piece. The second is that when creating the image for I-Picture, most everyone has been having better results by putting a white border around the outside edge (somewhere around 1/4"). The border causes the z depth to go up at each end of every pass, which has proven for most, including me to virtually eliminate the problem of running askew. There have been a couple of posts stating that the border is not needed, but there are far more that state that has eliminated the problem for them. You might try those 2 things and see if that solves the problem for you. |
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Post by jameswood on May 11, 2015 6:59:30 GMT -8
Hi Bob,
That's interesting, because the manual suggests that having the Feed Depth set greater than the Z axis setting just results in the image being reproduced in one pass. Nowhere is it stated that the two values have to match exactly or the result will be a skewed product. From the manual:
Feed Depth per Cycle is the depth of cut (Z axis) per cycle. The default is set to be 24mm, but it is adjustable.
For example: when Z is 10mm and Feed Depth per Cycle is 24mm, the cutter will carve the workpiece in a
single pass. Conversely, when Z is 10mm and Feed Depth per Cycle is 5mm, the cutter will carve the workpiece
twice (2 passes) in order to meet Z depth (per cycle= 5mm; two cycles = 10mm).
I see what you mean about a border making a difference, and I'll give those suggestions a try. Thanks.
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Post by Deleted on May 11, 2015 8:41:02 GMT -8
I suppose you could leave the per pass setting at 24mm or.118" which is only a default setting and see what happens, I have never done one that way simply because I did not want there to be any possibility of giving the software a conflicting parameter for a carving. Basically saying that if you want your carve done in 1 pass, why tell the software that is creating the gee code that the depth you want and the depth per feed cycle are different.
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Post by Deleted on May 16, 2015 12:08:42 GMT -8
I'd be interested in hearing if the border solved the problem.....it made my life easier though not on this exact problem. I would say that my settings are normally the same as Jameswoods, I have never set/changed the depth because I always stay under what it says it will be......so I've cut a number of things with settings just like these. Mine never match.
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Post by Deleted on May 16, 2015 12:09:50 GMT -8
Jameswoods, just out of curiosity what is your font?
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Post by jameswood on May 17, 2015 7:31:33 GMT -8
@rick52113 Honorary Admin It's the standard package font that came on the disk from Oliver. In this case it was the letter D - CT-T018.LetterD.bmp
What I find interesting (and frustrating) is that this skewing doesn't occur every time. I wondered if it had to do with the number of times I pressed "Enter" while setting up the machine to carve. You know, select the starting point, "page down" to "Enter to set ORG" press "Enter", then again, then press "Back" to begin the "Process." What happens if you press "Enter" too many times before pressing "Back"? Does that affect the way the machine starts out and thus leads to skewing? It must be something like that, or skewing would occur every time I tried to carve something -- but it doesn't.
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Post by mroliver on May 18, 2015 9:50:19 GMT -8
@rick52113 Honorary Admin It's the standard package font that came on the disk from Oliver. In this case it was the letter D - CT-T018.LetterD.bmp What I find interesting (and frustrating) is that this skewing doesn't occur every time. I wondered if it had to do with the number of times I pressed "Enter" while setting up the machine to carve. You know, select the starting point, "page down" to "Enter to set ORG" press "Enter", then again, then press "Back" to begin the "Process." What happens if you press "Enter" too many times before pressing "Back"? Does that affect the way the machine starts out and thus leads to skewing? It must be something like that, or skewing would occur every time I tried to carve something -- but it doesn't. pressing enter multiple times would not cause that to happen |
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Post by Deleted on May 19, 2015 2:47:54 GMT -8
I'd be interested in hearing if the border solved the problem.....it made my life easier though not on this exact problem. I would say that my settings are normally the same as Jameswoods, I have never set/changed the depth because I always stay under what it says it will be......so I've cut a number of things with settings just like these. Mine never match. While the inclusion of the alphabet letters on the images for carving disc seems to be handy, there is more work to be done if you use them. I have not used them but I just went thru and added transparency, then cleared the background color so I could compare the letters to each other and while I did not do the entire alphabet so far the 6 different letters I compared to each other are all different sizes. They are either taller or shorter than others, so there is no way to have anything come out even unless each letter is scaled to the same size. In this case I mean the actual letter has to be re-sized, .. Not the background. Here is an example of some letters as taken from disc with background removed:  As you can see some are different sizes when placed next to others. |
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Post by Deleted on May 19, 2015 3:08:49 GMT -8
And here is an example done with the letters scaled to size:  |
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Post by jameswood on May 19, 2015 7:17:15 GMT -8
And here is an example done with the letters scaled to size: I agree, and I always scale my letters to the same vertical size while "writing" a name. |
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Post by Deleted on May 20, 2015 11:26:35 GMT -8
When I first got the machine two years ago, I noticed the size difference and just stopped thinking about them whenever I do a project. It's just as easy to type out what I want along with any "picture" within Photoshop Elements and then put a blur on them to give me the round effect. This way the letters are always scaled to each other. The problem I have is in finding a font that is easy to read after being cut, which the disk letters do nicely.
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Post by Deleted on Aug 30, 2019 15:32:38 GMT -8
They are baaaack
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