I am in the middle of my first carve after assembling our 1000mm machine with a 24v spindle. The machine was mostly assembled by two of my students, both 12 years old, who have been hanging around my classroom this summer.
I have to comment that these two kids had very little difficulty in following the instructions and getting the machine put together. I completed the last part of the wiring and soldering of the motor driver board and the final electrical connection of the PS and controller to the machine. I found one small assembly error (the y-axis slides were upside down, easily corrected by just flipping over the homing switch to match the actuator), and corrected a reverse wiring of the right hand y-axis motor. I squared up the gantry, tightened up the dynamic v-wheels, and went over every nut and bolt for proper torque, but other than that, the kids did everything.
I am currently watching it cut the “Intro to Easel” project.
The only material I had handy for this was a piece of 1x4 pine I had jointed square and surfaced planed to a uniform thickness of .755 inches according to my digital calipers.
I have one problem I can’t seem to solve, and a comment about the “Intro to Easel” project that is more of a whine than a problem.
First, the problem, I have manual control of the spindle only. It powers on and off when I flip the spindle power switch on the PS, but it will not respond when I use the "logic setting.
I did a forum search before posting this and I hope someone has suggestions.
Second, here is the whine… I am disturbed at how deeply the machine is cutting this “intro to easel” project. Each pass is a reasonable depth of maybe 1/16" or so, but the outline of the little “chalk board” critter is ending up more than 1/2" deep. The machine is plunging so deep that the conical section where the shank of the bit tapers down to the spiral cutter is dragging against the surface edges of the outline, destroying the definition of the surface edges. The tutorial “walk through” of this intro project really needs to include instructions about how to modify the depth of cut, but also, it really shouldn’t be so deep. It only took 6 minutes for the machine to carve my name, but almost 45 minutes to cut out the little chalkboard and easel critter, just because it was so need. Waah!
Over all though, I really like the machine and impressed with what I have seen so far. I apologise for the whine, and would really appreciate some guidance on the spindle logic issue.