I wonder, if my small CNC 1419 can do any better, but at the moment, I'm glad, I can mill some plastic. Don't lose your enthusiasm! I wish you best of luck! ✌️

There looks to be a lot of flex in the spindle motor shaft. From experience with those motors I would also think that the chuck is offset so your cutters aren't running true. Keep it up. I would suggest a spindle motor where the collet is integral giving a thicker output shaft with heftier bearings. A palm router or ideally a spindle motor.

I bought one of the ANNOYTOOLS CNC Aluminum Z Axis Spindle Motor Mount 85mm kit from Amazon so I could use my Makita RT0701C compact router instead of a spindle on my 3018 prover. But I haven't tried aluminum yet. Disadvantage is no automatic speed control. Advantage is way more power 1.25 HP = 932 watts.

Remember 2 things! Never give up

nice to see people try with small desktop machine as it shows what can be done I would say your stepper motors are stalling and probably causing an out of sync issue Try using a 6mm 2 flute cutter because the cutter is gumming up quicker on a 3 flute, Also so use some lube like WD40 , personally im not fond of using it, because it is a pain to clean up everything afterwards so I use proper soluble cutting fluid. see how you get on and let us know.

The end mill doesn’t seem to be cutting, I think 2 flute end mill, with coolant will help improve matters. It’s probably not cutting fast enough, that’s why it gets stuck. Is the end mill carbide and of good quality? As for the program freezing. Run the control wires separately from the motor lines, especially the spindle power. It’s customary to power the control card from a separate power supply other than the motor power supplies

Cut the shank off shorter on the end mill or chuck it up more with something will help some it all adds up a little 👍🇺🇸the little spindle sticks out so far.

Hi,,,Trye to change electric wiering, my pal had the same problem, he shange wiering and it got better. It was problem with magneting issius. ( i´m from sweden , sorry with my english)

Magneting fields between cables, start problems.

Keep on trying. Its not you that's failing, it just your ideas.

the issue that your bit runs straight to your workpiece is because you have connected the offline controller and the pc at the same time. they are using the sam comunication line and interfere with each other. disconnect the offline controller and try just the pc.

Working it too hard. Feed rate and depth expectations are way too high for a hobby machine. A 400W spindle is going to be a lot more limited than a conventional trim router regardless what end mill you use. To get a good finish at those speeds, you need more hp (specifically torque) to cut and move chips efficiently, or a slower feed rate to give the stock spindle more time to do so. Power = torque * speed. 10-12K rpm is good speed, but a 400W spindle is only 0.3-0.4nm, whereas a 1000W spindle or trim router provides more than twice as much torque at the same speed. If you want better results, upgrade the spindle or drop to 10ipm and 1/16" depth per pass and start there. Work your way up with different bits. It's slower, but again, it's a hobby machine. Try Easel instead. All in one software. Can be used free with limited features. I use the Pro version. Well worth the $. Never had any problems with it or the machine. They have presets for most desktop machines (including this one) to help eliminate the guesswork. If you push anything beyond its limit, expect damage and failures.

I have the same cnc and after 1year upgrading and using it pretty much daily i can say throw away the offline controller.

A 2.2K Watt spindle is close to a minimum for metal. A 400W is not even a dermal.