MWHinton
10-11-2007, 04:52 PM
My Carve Wright is drilling oblong holes. After working with support they are leaning towards the x-axis funcitons as being the issues but I now disagree.
I ran some more tests with my Carve Wright and I am not thinking the issue is with the x-axis as in the brass roller nor the gears for the sandpaper belts. I inspected everything very carefully and it appears to be fine.
I used designer to create a series of drill operations and set the depth to 0.05" (see attached mpc file). I then ran the file in the machine but installed the 1/16 carve bit and told the machine it was the 1/8 bit. I wanted the tool to barely touch the wood and quickly so that is why the depth was set to such a shallow amount. I would have expected the result to look alot like a center punch. The result of the operation were tiny little ovals which can be seen in the attached file. I also drilled next to them with my drill press so you can see the difference between the round and oval shapes. I am suspecting that the issue lies in the flexing of the tool head as it rotates. Maybe the chuck is not balanced or the bearings have too much play reflecting in the x-axis direction. I watched the belts extremely close and did not see any movement what so ever in the x direction through out the operation. As a result I suspect the other components.
If someone could run the attached mpc file in their machine I would be interested to see what results they get and appreciate it very much. If you do run it please use yout 1/16 carving bit but tell the machine it is the 1/8 bit. Any help on this would be greatly appreciated!
I ran some more tests with my Carve Wright and I am not thinking the issue is with the x-axis as in the brass roller nor the gears for the sandpaper belts. I inspected everything very carefully and it appears to be fine.
I used designer to create a series of drill operations and set the depth to 0.05" (see attached mpc file). I then ran the file in the machine but installed the 1/16 carve bit and told the machine it was the 1/8 bit. I wanted the tool to barely touch the wood and quickly so that is why the depth was set to such a shallow amount. I would have expected the result to look alot like a center punch. The result of the operation were tiny little ovals which can be seen in the attached file. I also drilled next to them with my drill press so you can see the difference between the round and oval shapes. I am suspecting that the issue lies in the flexing of the tool head as it rotates. Maybe the chuck is not balanced or the bearings have too much play reflecting in the x-axis direction. I watched the belts extremely close and did not see any movement what so ever in the x direction through out the operation. As a result I suspect the other components.
If someone could run the attached mpc file in their machine I would be interested to see what results they get and appreciate it very much. If you do run it please use yout 1/16 carving bit but tell the machine it is the 1/8 bit. Any help on this would be greatly appreciated!