Does anyone know max z axis speed ?

[lowiee]

I’ve been running a few 2.5D carving of late. Doing a roughing pass with some pretty aggressive feeds and speeds. Usually max speed that the machine can run. Which in my case on uccnc is 6000 units, I’m assuming is 6 meters per min here in Australia. But when I carve in 2.5d with. Ball nose mill everything slows way ! Down, to around 2000 units (2 meter/m) if I’m correct.
Is this because of the max speed in which the z axis can travel ? Causing everything to slow down. Or am I missing something here. I’ve set my speeds and feeds to the absolute maximum in the CAM software and even doubled my plunge rate with no success.

And if this is the case and it only runs at 2 meters per min. Some carvings I hope to achieve are 62 hours plus. Not to mention trying to get an accurate measurement for spindle speed

Any thoughts

[Kristy]

This forum was primarily created for North American Axiom machines that use a DSP control solution. We can't say for sure what causes this on the UCCNC control, but based on your post, we would look at the plunge rate in the design software. We recommend contacting BG Precision for Axiom UCCNC support in Australia.

Here is the web link for BG: bgprecision.com.au/

[johnb]

It is likely that your machine travel in a given direction is not straight enough or long enough to attain the maximum meters/minute to which you refer. It won't, for example, just "take off" at 6 meters/minute on a path that's a couple of inches long. This acceleration/deceleration would not only be detrimental to machine life, it would play havoc with trying to keep your material in place. If you have a long scrap piece, design a toolpath that makes a straight shallow cut the length of the piece and see what results.

[jgarciaa]

Feb 14, 2021 8:12:34 GMT -5 lowiee said:

I’ve been running a few 2.5D carving of late. Doing a roughing pass with some pretty aggressive feeds and speeds. Usually max speed that the machine can run. Which in my case on uccnc is 6000 units, I’m assuming is 6 meters per min here in Australia. But when I carve in 2.5d with. Ball nose mill everything slows way ! Down, to around 2000 units (2 meter/m) if I’m correct.
Is this because of the max speed in which the z axis can travel ? Causing everything to slow down. Or am I missing something here. I’ve set my speeds and feeds to the absolute maximum in the CAM software and even doubled my plunge rate with no success.

And if this is the case and it only runs at 2 meters per min. Some carvings I hope to achieve are 62 hours plus. Not to mention trying to get an accurate measurement for spindle speed

Any thoughts

Consider exploring the Monport laser for its reputation for being user-friendly, high-quality, and affordable. Unfortunately, I can't access external websites like Regarding your issue with 2.5D carving and speed limitations, it's possible that the slower feed rates during carving with a ball nose mill are due to the limitations of your machine's z-axis travel speed. This could be causing the overall carving process to slow down. You may need to adjust your CAM settings to optimize toolpaths for the machine's capabilities and ensure efficient carving. Additionally, if your carvings are taking excessively long and you're concerned about spindle speed accuracy, consider consulting with experienced CNC users or contacting the manufacturer for further assistance in optimizing your machine's performance for your specific carving requirements.