Most of the projects I do with my machine are wood inlays. I have been having some issues with tearout, especially on small, sharp points. I have tried a number of different things to limit this, with little success. Changing feed rates, speed, etc.
Typically, I use amana 45611-k as my vcarving tool. It is very precise and I like its durability. However, I get the aforementioned tearout pretty regularly. At one point I thought, "well that's just the nature of wood". But I want to do better. When using this bit, I have a vcarve toolpath for the pocket AND the plug.
I have been watching some youtube videos and there is one wherein the author of the video claims that if I were to use amana 46280-k my results would be much better. This requires a change in the toolpaths. ie. a vcarve for the pocket and a pocket for the plug. I have modeled this and it seems to work.
Before I go down the path of buying a new tool, etc. I was wondering how many of you see the same issues with tearout? What tools do you use and how have you tried to limit it?
Last Edit: Feb 4, 2022 13:12:27 GMT -5 by mcraigchr
Post by germanguitars on Feb 5, 2022 8:35:25 GMT -5
If you are talking about tearout on acute angles of the positive portion of the inlay, I have found that you can sometimes pre-drill holes along the profile path the bit will take in order to minimize the amount of material the flute can grab as it goes around the endgrain on a corner. YMMV
Post by trainmaker on Feb 20, 2022 15:22:30 GMT -5
I had the same problem when making the inlay of a maple leaf[Zank method], especially when using curly maple. After having tried a number of different methods I switched to a Whiteside bit 1541.Proplem solved.
I would suggest using an Amana 45733 60 degree vbit. I have used this extensively for inlay and never have had any issues. The bit you are using is more for engraving or fine lettering and besides that it is a 15 degree angle tip. I think it would be more likely to tear out on detailed outlines. I think any bit with flutes would work better.