I'm quite new to this stuff, but I have been able to turn out some decent v-carved projects.
I'm starting to get frustrated with the work coming off my machine though and am looking for some advice.
First off, the machine is a fairly rudimentary Chinese model (from a now defunct company) running a 1/4" router (trimmer). When I first started playing with it I (stupidly) didn't realise it didn't have any limit swtiches and drove it into it's ends more than a couple of times by accident before I programed in some soft stops in Mach 3. I'm sure this didn't do it any good, but I've check square, level, and it seems to travel around smoothly enough.
As I said, I've manage a few decent projects but I'm getting some really crappy results from time to time.
These are an example from today I did in some MDF with a 1" v bit. Bottoms not cleaning out nicely, circles not meeting up perfectly, messy lines, etc.
I've had these problems a few times, but others it doesn't seem to be so apparently. I did a large (42" x 20") profile cut out of a cursive word yesterday in some MDF and some lines and curves were perfect, others were quite obviously off from one pass to another. It actually seemed to be worst after the 1rst pass and then line up more or less from there. (I did 8 passes in .75" MDF with a 1/4" end mill, probably overkill).
The second set of pictures is from another sign that came out very poorly. Same types of problems.
I've had many other examples but I attack them with the dremel to clean them up right away because I'm so frustrated I don't want to look at it anymore. It's getting to the point I'm not going to use it anymore as the follow on finish work is just too much.
Is this a result of a sloppy machine? Calibrations of some sort? Bad tool data? Messed up vectors?
I sincerely appreciate any advice.