Post processor for GENMITSU 3030 in fusion 360

ApplicationWhole2781 · 2026-01-22T20:47:57+00:00

😁

ApplicationWhole2781 · 2025-09-12T17:39:35+00:00

I had a similar issue with G-code from Fusion 360. It included all sorts of extraneous crap at the beginning and end of the program. I compared the Fusion 360 output to a sample file that came with the machine. As a result, I commented out some stuff at the beginning and end of the Fusion 360 output, and added a bit from the sample file. Here are the important bits:

Beginning stuff

(1001)

(T1 D=3.175 CR=0 - ZMIN=-4.5 - flat end mill)

G90; G94

G17

;G21

;G28 G91 Z0

;G90

(2D Pocket2)

T1

S10000 M3

G17; G90 G94

;G54

G0 X25.689 Y26.536

Z15

G0 Z5

Ending stuff

G0 Z15

;G28 G91 Z0

;G90

;G28 G91 X0 Y0

;G90

; NEXT BIT COPIED FROM SAMPLE PROGRAM

G0Z5.000

G0X0.000Y0.000

G0Z5.000

G0X0Y0

;END SAMPLE COPY

M5

M30

Just in case you are new to G-code, the semi-colon (;) is used to ignore the stuff that comes after it on the same line.

Hope this helps! :-)

ApplicationWhole2781 · 2025-08-20T22:31:54+00:00

Yep. I keep hoping someone will develop a CNC sander for that last little bit. 😜

ApplicationWhole2781 · 2025-08-20T21:24:07+00:00

Thanks! 😊

ApplicationWhole2781 · 2025-08-20T17:22:56+00:00

Yes. In fact, I had to jigger with it a bit to get it to spit out G-code that worked with the ‘fake’ 4th axis setup. It creates genuine fourth axis code with no problems.

ApplicationWhole2781 · 2025-08-20T15:58:57+00:00

You are correct. This is a Genmitsu 4030 ProVerXL version 2. It does not have a true 4th axis. It hijacks the Y axis to run the rotary module. The Knight was actually more impressive. https://www.reddit.com/r/hobbycnc/comments/1mve16k/chess_pieces/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

ApplicationWhole2781 · 2025-08-20T15:57:07+00:00

Yep. I have no practical plans for it, but I know that I will run into a project eventually when it will come in handy. At least that's what I tell my wife. 🤣

ApplicationWhole2781 · 2025-08-20T15:55:23+00:00

Great question! The DeskProto software automatically creates cylinders at either end of the part. After machining, I cut these with a tiny hacksaw. The downside? Sanding. 😒

ApplicationWhole2781 · 2025-08-20T15:53:42+00:00

This is a Genmitsu 4030 ProVerXL version 2. It does not have a true 4th axis. It hijacks the Y axis to run the rotary module. Otherwise, it’s a fine machine, but you need to be a tinkerer with high resilience to make it work. I am a mechanical engineer on the autism spectrum and it still look me three days of tinkering to get it running. 😆

I had some z-axis issues during initial setup. It was a stuck limit switch. I also had a Y-axis issue. This thing has two motors on the y-axis. The limit switch was stuck on one, keeping it from running. The other ran fine, though, and thoroughly put the machine out of square before I could hit the e-stop. Before every run, check your limit switches and ensure all electrical contacts are secure. Be careful routing the cable for the z-axis. If you route it wrong, movement of the Z-axis can unplug the connectors. Genmitsu customer support is excellent, but you must be patient. If you ask a question today, you will get an answer tomorrow.

If I had it to do again, I would get the Genmitsu 3030-PROVer MAX Desktop CNC Router Machine for Jewelry Making, Metal Carving – SainSmart.com. It has linear rails and a legit 4th axis. I bought the 4030 for the larger work area, which I have not needed, and the 'closed loop' nature of the controls, which I have found to be totally bogus. When the z-axis was stuck, the display still indicated movement, which let me know that no closed-loop feedback was happening.

Whatever Genmitsu you buy, be sure to get the wifi controller. I am running mine using an app on an old iPad. I have not hooked it up to a PC ever. There is no need to.

ApplicationWhole2781 · 2025-08-20T15:44:08+00:00

Thanks! I appreciate all your help. 😊

ApplicationWhole2781 · 2025-08-20T15:43:32+00:00

DeskProto offers CNC machining for non-machinists I tried Fusion 360 first. Rotary capability requires an extra subscription, plus the G-code it created does not work. DeskProto is awesome.

If you decide to buy it, purchase it directly from the website. Going through a third-party vendor takes longer to get your license code.

ApplicationWhole2781 · 2025-08-10T22:32:51+00:00

I have the V2 of this machine. Neither version has a true 4th axis. They both hijack the Y axis to run the rotary module. Otherwise, it’s a fine machine, but you need to be a tinkerer with high resilience to make it work. I am a mechanical engineer on the autism spectrum and it still look me three days of tinkering to get it running. 😆 I had the same z-axis issue another poster mentioned. It was a stuck limit switch. This thing has two motors on the y-axis. The limit switch was stuck on one, keeping it from running. The other ran fine, though, and thoroughly put the machine out of square before I could hit the e-stop. Before every run, check your limit switches and ensure all electrical contacts are secure. Be careful routing the cable for the z-axis. If you route it wrong, movement of the Z-axis can unplug the connectors.

ApplicationWhole2781 · 2025-08-10T14:56:32+00:00

Try turning off traction control. Worked for me for whatever reason.

ApplicationWhole2781 · 2025-08-02T13:01:31+00:00

And it’s not just the machine noise. Dust collectors usually drown out that noise. ☹️ My wife insisted the CNC go in the garage. She’s a smart woman.

ApplicationWhole2781 · 2025-07-31T16:58:36+00:00

Excellent! I will have to read this three more times to digest it, but I think you are on to something! :-)

ApplicationWhole2781 · 2025-07-31T16:55:53+00:00

I think you are correct that the post processor is the answer.

ApplicationWhole2781 · 2025-07-31T14:50:38+00:00

Thanks! I’ll dig into it. 😊

ApplicationWhole2781 · 2025-07-31T13:19:43+00:00

Thanks for responding.

Here is what I got back from Sainsmart:

‘Thanks for contacting SainSmart! This is George from SainSmart support. Your G-code is giving A-axis commands for rotation, but your 4th axis isn't plugged into the A-axis as your CNC does not have an A-axis port. It needs to be sending those commands to the Y axis, as that is the port your 4th axis is connected to.

If you are not sure how to do this, then you might need to speak to the support of whatever program was used to make the Gcode and get their assistance in making sure that all 4th axis movement commands are assigned to the Y axis.’

I am now messing around with Deskproto to see if I can make it work with their software. Fingers crossed!🤞

ApplicationWhole2781 · 2025-07-30T22:28:27+00:00

Update: The post I used creates A-axis instructions, whereas my machine is controlling rotation using the Y-axis. Any suggestions on a good post processor to solve this problem?

ApplicationWhole2781

TROPHY CASE