CNC Offline Controller GRBL Control for 1810-PRO/3018/3018-PRO/ 3020 CNC Router Machine

This is awesome. It frees up my laptop to do other things. Totally worth the price. Way cheaper than buying another computer. I'm using it on a Chinese 3018 cnc router.

This is a nice little controller for GRBL. Does what it is supposed to, and works fine. It has one flaw. The spindle speed is set to max with no way to adjust spindle speed from the controller. This is a major oversight and I am unsure how it was possible to overlook.

This is a one or the other. use this OR a laptop, NOT both

This is a good, super easy to install and very inexpensive addition for the unit. It lets you do offline testing to make sure the unit is working properly, and it has other neat little functions that allows it to work without connecting up to a laptop/pc/server. Highly recommended.

Note that some listings are showing two completely different controllers in one listing as though they are the same. This review is for the white plastic version, black buttons with a 1GB SD card. The version with yellow buttons uses a 4GB SD card.For about twenty dollars the Genmitsu CNC Router Off Line Controller meets minimum requirements. It is useful for initial testing of your build and it can be used to operate 1610 to 3018 CNC machines off-line. Jogging works well. Except its use has many pitfalls: The controller defaults to 10mm movement which for a novice user can easily crash the machine. Take care to set movement to 0.1mm to start out then move up (ok/spindle->exit/step) once you know how it moves. The ancient 1GB SD card is extremely fragile. Best to leave it in the controller and connect the controller to your PC using USB 2.0 ONLY. Copy your G-Code ...nc to it via USB 2.0. There is a high chance of destroying the card by using USB 3. The card will be destroyed by attempting to format it. G-code interpretation in the controller seems to have trouble with comments. The controller must not be plugged into the CNC machine while it is connected to the computer and powered on.

I have wanted it for a long time my computer was almost rued from the dust I'm so happy I ordered it by mistake my computer module Do USB port Vibraed off so I was ordering a new Computer module and accidentally ordered this but I'm so happy I wish outta order to It's well worth your money Is well worth double the money because it'll save your computer So I highly recommend it

No where to plug this controller in. The 3018MX3 has a serial port for a hand held control wheel MPG.

I gave this a 4 because it does what is described as it's function. The problem I found was that you can't have the USB from the computer connected at the same time to the control circuit of your machine. I've networked my computers so I design on one computer, create and test the code, then send it to the computer that controls the CNC machine. By doing this I avoid messing with micro SD cards. If you don't like networking and don't have an extra computer this will probably suit you needs.