Hello, Maslowvians, I come in peace, and looking for help with my first project.
Here’s a picture of my most successful test to date:
Here’s one of the problems I’m having:
The pattern is cut starting at the left side of the workpiece, and moving in columns to the right. Each pentagon shape is cut in a single pass, the bit plunges into the center of the shape, and carves it out, stopping in one of the right hand corners. What I think is happening is that as the bit rises very slowly, it vibrates in place, causing a little friction, burning the wood, heating the bit and dulling it, making the problem worse as it progresses. Here’s an edge-on view showing how the problem gets worse from beginning to end:
Here’s a picture of the bit when it was all over:
The router speed was set to 16000 RPM, and as soon as I saw the wood singed at the beginning, I turned the speed down, and then when it still kept burning the wood, I turned it down to the lowest speed, 10000 RPM. That obviously did not help, maybe by the time I turned the speed down it was too late?
I used Easel software to generate the g-code. Here are my cut settings:
The other, and maybe related issue is the z-axis. The first cuts are about 0.2 inches (supposed to be 0.25), and the last are about 0.33 inches. Also, the router got stuck down a couple of times near the end, but (to my surprise) recovered. Here’s some pictures of that:
I’m using a Ridgid 2200 and modified it with a washer and bushing as per: Inexpensive add-ons for z-axis slack imprecision
I also added a strong bungee cord over the top like this:
One obvious issue is that the bushing came off at some point, so maybe that explains all or most of my z-axis issues.
I’ll have to get some stronger glue.
Any help resolving these issues would be greatly appreciated.