Thanks Greg, that helps a lot. One of the other posts I read helped me to understand the hardware reason for the limitation.
I’m still early on in my CNC experience, but since I posted the question I have learned a bit more about nodes.
The first two files I tried both had hundreds, (possibly thousands), of nodes. One was a trace of a bitmap image and when I looked at it with the node editing tool I realised that the poor Arcdroid processor was being handed much more information than was necessary.
AI helped me find a function in my software which allowed me to reduce the density of nodes , (see steps below), and I can’t wait to get back to the shed next week and try it out. I’m confident it will now work.
The second file was just a few lines of large text, so I was disappointed when it too ran into memory problems. But, when I looked at it with the node editing tool I discovered that it also had thousands of nodes. I guess the “convert text to curves” function had added all the nodes. Using the same software function, I was able to vastly reduce the number of curves and again, I’m confident it will now work.
For those of you having similar problems, I’m using Vectric Carve Pro, and the steps AI gave me to reduce the node density are as follows.
Select high node density vectors.
Under the Edit menu, select Curve Fit Vectors
Select Bézier curves, set the tolerance to .05mm, tick Keep Sharp Corners/max angle 60 degrees, tick Replace Selected Vectors.
Then prepare to be amazed as you click on Preview.
There will no doubt be a similar function in your software that works the same.
I’ll let you know how it went.
Thanks again for responding Greg