Hi
I know that this is maybe not the correct place to put this but as there are a lot of people here who are using routers I thought that I might just get a better response.
Anyway I have a problem to which I do not seem to be able to resolve with my router when machining either soft or hard wood and it is now getting very annoying if you look at the picture you will see what I mean I am getting lines which you can clearly see and no matter what I do to try and cure this problem nothing seems to work, I have tried all variations of feeds and speeds but nothing seems to work, I have a solid machine not a small machine that I have built it does not move or vibrate in any way, as you can see by the picture of the machine it is 5 axis and as I say it is all very solid so I am just hoping that someone just might know the answer to my problems  and please do not tell me to just sand these lines, these lines are around 0.5 to 0.75mm deep and I have tried machining at all different angles with the grain against the grain etc.
So please help me out here I have not got much hair left to pull out
Thanks
Alan

If it were a conventional head I would ask if you had trammed it.  The lines, looks to me like it is the placement of the tool and not due to cut direction, wood grain etc. Can you get a close up picture of the lines?

I have sent you a PM
Brett

Here is a couple of close up of lines
Alan

Sorry about all the pics but it just shows the problems that I am having.
Alan

Alan,
  What is the cutter size and type (and condition) ?
What is the "step-over" amount set in your CAM ?
What is the milling strategy ? waterline ? or ... ? ?
Might help with diagnostic.
Russ

Thanks for your mail, I have just had a phone call from Brett who has given me a couple of things to check out, but in answer to your questions, I am using a new Ball nose router cutter which is 1/8 inch diameter and using a 10% stepover
Thanks
Alan

Alan,

You may want include the software as that may be a clue for others to help as well.

Dave.

Software used is Vectric Aspire4
Thanks

In all honesty, I would post your problem over there as those folks are crazy good with this stuff.   

I only have VCarve Pro so I wouldn't be much help here.

Dave

Hi Brett
I have done as you asked checked backlash etc. found no problems there and again done as you suggested machined  a piece of wood (Oak) then sprayed it back and then re-machined taking off just 0.0200mm (0.0007873992 inch) and you can see the problem with the lines are just top and bottom not sure if that tells you anything that might help?? and because it is a 5 axis machine I did also check that the tool was running vertical etc.
Thanks
Alan