Help with rotary axis - Grrrrr

[NACC]

Hi guys- I've been stumped and working on this for days without resolution- can't find any relevant video on yt.
I believe I have everything set properly, but it's not engraving like it should be. Shark HD500 + rotary + Vectric desktop + Ready2Carve.
I attached files. If someone could take a peek and tell me what I'm doing wrong? Basically- 2.5" dia x 5" long. cylinder is aligned along y axis (front to back) and I'm trying to engrave my trademark into this aluminum round- as a practice. I have a finished customer brass barrel to engrave once I figure out the issue. the pic is a simple profile and some simple v-carve text. looks great flat, but I'm unable to get the rotary to engrave correctly.

[Rcnewcomb]

but I'm unable to get the rotary to engrave correctly.

The preview in the CRV file looks OK.

Therefore you are dealing with a post-process or a machine issue.

Please explain in detail exactly what the machine does when you run the file.
Is the bit just moving above the surface?
Does the rotary rotate the correct amount?



Suggestion: Get in the habit of using cylinder center rather than cylinder surface for Z zero. This will avoid problems further down the road.

[NACC]

well- i was able to get the format on the rotary axis correct finally- but the quality is horrendous. I must've tried 2 dozen practice runs in brass & aluminum- changing speeds and depths with no success at all. at this point, I'm wondering if I'm asking too much from the mini rotary- maybe the full size rotary would be more capable? i'm thinking of just milling a flat spot in the customers barrel and carving the file in flat... here's an example of how the file looks carved flat into the brass- compared to how it came out on the rotary practice pieces

[Rcnewcomb]

I'm wondering if I'm asking too much from the mini rotary

I have not used the Shark rotary so I cannot speak to it's capability, but something is off in your rotary setup.
I'd recommend doing some tests on some wooden 2x2s to help you get it dialed in.

[chemstock]

Is the rotary belt driven or gear driven? i have a belt drive on my Laguna Swift, it isn't strong enough to prevent wander if the bit cuts too deeply. Maybe take shallower cuts, the symmetry on the logo and lettering should be perfect if the rotary is maintaining the radial movement.