While we are on the topic of the egg tray project (and apologize in advance if this is considered hi-jacking the thread). My significant other had a similar request earlier this year (those catalogs do get around). I made several (12, not 18-egg trays). However, to avoid the undesirable effect (see attached rendition) from the toolpaths I created, I had to do a work around while machining. I recognize this is my error, or at least lack of sufficient understanding. And while the work arounds worked around and avoided the undesireable result shown in the depiction, I expect that there is a correct way I should be creating the tool path leaving an elegant machining operation (without using any one of several work-arounds). I have v-carve pro, and used the 90 degree dome models to create the project, stretching the height appropriately. Created the rough and finish tool paths, using a 1/2 spiral and 1/2 BN, respectively.
- Machined using "work-around". there are several ways to avoid the unwanted cut depicted in the other "photo". Here, the finish path was set with a minus 0.25" offset, and I "faked" the Z setting when maching the finish path by seeting it at minus 0.25. Figure there is an elegant (e.g., correct) method.
- Rendition by v-carve showing "unwanted cut". Had set finish model to cut to vector (setting to model yielded same result) where the vector was a circle the size of the "top" of each model (dome).