Hi, I recently noticed that when outputting cam using the "Deep drilling - full retract" cycle, the prototrak post processor ignores the pecking depth reduction and minimum pecking depth fields and just outputs a G83 with the initial pecking depth in the "Q" argument - obviously this is terrible behavior and caused me to break a drill.  Our Prototrak TMC7 says it will accept IJK arguments to G83, see: https://www.southwesternindustries.com/media/manuals/31550_manual.pdf?rev=154646 (Page 173)  I'm (slowly) working on modifying the post processor to handle this, but I'm not much of a programmer and if someone can knock this out in a few minutes it would be a big help.  Post attached.  Thanks! Show More

I mean come on folks, its 2026 and this has been a request that I can find going clear back to 2018... What I am describing is not a customization request. I am using: - A Haas TM2-P — a production mill sold by one of the largest CNC manufacturers in the world - A Haas HRT rotary table — standard 4th axis hardware used in shops everywhere - The Haas Next Generation Control post — Autodesk's own, actively maintained post for this exact control - A standard indexed tapping operation — one of the most common machining operations in existence This is not an exotic configuration. This is a generic, real-world shop setup that Fusion 360 CAM explicitly claims to support. The fact that posting a tapping canned cycle fails the moment a machine definition includes a rotary axis — even when that axis is stationary and clamped during the operation — is a defect in the software, not a gap in my configuration. Show More

Hello Autodesk Team, I am reporting critical issues with Fusion 360 post processor when using G68.2 (Tilted Work Plane) for 3+2 multi-axis machining on HNC-848Di CNC control. **Machine:** IRON MAC IMU-5X 400 PRO (5-axis machining center) **CNC Control:** Huazhong HNC-848Di **Post Processor:** rs274 multi-axis.cps (Generic RS-274D Multi-axis) **Fusion 360 Version:** 2026 (current) ## Problems 1. **Drilling cycles (G81/G83) are expanded to linear moves (G0/G1)** at the CAM level before post processor is called. The `onCyclePoint()` function is never called, preventing the post processor from outputting drilling cycles. 2. **Incorrect command sequence:**    - G69 (cancel tilted plane) outputs BEFORE the operation instead of AFTER    - G43.4 (TCP) outputs AFTER G69 instead of BEFORE G68.2    - G53.1 outputs without feedrate (should include F3000 parameter)    - Machine-specific commands are missing (M61 M63, M51 M53, G05.1 Q0 for HNC controls) ## Impact Programs generated by Fusion 360 execute drilling operations in the wrong coordinate system, resulting in incorrect part geometry or potential machine crashes. ## Expected Sequence (per HNC-848Di requirements): ```gcode M61 M63                           ← Unlock rotary axes G0 A-90. C270.                    ← Position rotary axes G43.4 H1                          ← Enable TCP BEFORE G68.2 ⚠️ G68.2 X0 Y0 Z0 I90. J90. K180.   ← Set tilted work plane G53.1 F3000                       ← Turn machine (with feedrate) ⚠️ M51 M53                           ← Machine mode G05.1 Q0                          ← High-speed mode G0 X0. Y35.                       ← Approach point G98 G81 Z64. R71. F20.            ← Drilling cycle ⚠️ G80                               ← Cancel cycle G69                               ← Cancel plane AFTER operation ⚠️ G49                               ← Cancel TCP ``` ## Actual Sequence (Fusion 360 output): ```gcode G0 A-45. C15.                     ← Position rotary axes M8                                ← Coolant on G68.2 X0 Y0 Z0 I-165. J45. K180. ← Set tilted work plane G53.1                             ← Turn machine (NO feedrate) ❌ G0 X-0.001 Y35.753               ← Approach point G69                               ← Cancel plane BEFORE operation ❌ G43.4 H1                          ← Enable TCP AFTER G69 ❌ G0 X-30.287 Y113.027 Z66.452     G1 X-11.464 Y42.779 Z-6.274 F40  ← Linear moves instead of cycle ❌ ``` **Critical consequence:** The drilling operation executes in the base coordinate system instead of the tilted work plane, resulting in holes drilled in wrong locations and orientations. ## Comparison with SolidCAM SolidCAM correctly generates the proper sequence with drilling cycles (G81/G83) in tilted work plane operations. This proves the correct sequence is technically feasible and industry-standard. ## Investigation I added debug comments to the post processor to track function calls: - `onCyclePoint()` is **never called** for drilling operations with G68.2 - `onLinear()` is **not called** for the expanded linear moves - Fusion 360 outputs G0/G1 commands directly, bypassing post processor cycle handling **Conclusion:** Drilling cycle expansion happens at the CAM level before post processor execution. The post processor cannot prevent this. ## Current Workaround I created a custom HNC post processor with 500+ lines of modifications to fix the command sequence issues. However, I cannot fix the drilling cycle expansion problem as it happens before the post processor is called. ## Test Files Available I have test files available for verification: - `1001.nc` - Fusion 360 output with custom HNC post (correct sequence, but cycles still expanded) - `1002.nc` - Fusion 360 output with standard post (incorrect sequence) - `ST1.NC` - SolidCAM output (correct reference from working machine) - `rs274 multi-axis HNC.cps` - Custom post processor with all fixes I can provide these files and detailed bug report document upon request. ## Request Please prioritize this bug fix as it affects **multi-axis drilling operations**, a core CAM functionality. The current behavior makes Fusion 360 unsuitable for production use with HNC-848Di and similar controls without extensive post processor customization. **Affected users:** - Users with HNC CNC controls (Huazhong HNC-848Di and similar) - Users with Fanuc controls requiring strict G68.2 sequence - Users requiring drilling cycles in 3+2 operations (aerospace, mold making, die making) - Users migrating from SolidCAM, Mastercam, PowerMill to Fusion 360 ## Contact I am available for: - Providing test files - Testing beta fixes on IRON MAC IMU-5X 400 PRO machine - Sharing custom post processor code - Video demonstration of the issue - Remote session to demonstrate on actual machine Thank you for your attention to this critical issue. Best regards ``` Show More

hello how are yall doing? im a having a trouble with fussion post processor for a FAGOR 8060. Everytime i try to make a toolchange, the tool drops out of the spindle like a bomb, and then tryies to change to the next tool but instead, the tools stays in the magazine (if i didnt explained it clear, this is 100% a post-processor/software problem, not a mechanical drawbar one) and the code its processing like   T12 D1 M6 S5000 M3 G17 G90 G94    maybe the m06 should be put in another line? Show More

Please consider a post processor for a DMG Mori milltap 700 with a siemens 840d controller Show More

Develop specific FluidNC post processor for FluidNC that is using ESP32 processors.  This appears to be fastly growing & is more than grbl, grbl-esp32.    Github has some support projects & additional  Show More

Hello, my name is Pete. I'm trying to get a Centroid XZC custom system running and having a really hard time with this. I have a custom centroid post processor someone kindly offered on their forum but it is not playing well with fusion. Any help getting pointed in the right direction would really really be appreciated. The real sticking point is milling pockets on the concave surface of a piece of pipe. WRAP with 2D adaptive clearing is only supported for exterior pockets in XZC mode. I've tried SWARTH tool, but the post processor fails every time. Thank you in advance! Show More

Hello everyone, I recently bought a CNC lathe as a hobby and I run it on some days. I can write programs manually and use ShopTurn without problems. However, I would like to try using Autodesk Fusion, at least for testing purposes. The problem is that I couldn’t find a postprocessor suitable for my machine. I’m not sure if the ones available in the Fusion library will work with my setup. Machine: DMG CTX 210, with C-axis Control unit: Siemens 840D Powerline The lathe is quite an old model. 2006  Fusion appears to be free for amature users. I asked the local reseller for support, but they didn’t help and told me I would need to purchase the program. At the moment, I’m not in a position to buy it — I just want to do some test cuts. My questions are: Will the standard Fusion 360 postprocessors work with this machine? Or is a custom solution required? What’s the best approach for hobby users like me in this situation? If anyone has experience running Fusion 360 with a similar lathe, I’d really appreciate your advice. Thanks 🙏 Show More

Hello, I would like to request a custom post processor (or an update to an existing one) for our lathe HWACHEON HI-TECH 230 BL YSMC used with Fusion 360 (Manufacture workspace). On the Autodesk post library I can only find a post for HWACHEON HI-TECH 230 AL, but our machine is the 230 BL YSMC version equipped with: main spindle sub-spindle Y-axis and C-axis (live tooling) We would like to fully utilize the sub-spindle for part transfer and secondary operations. Our requirements in short: Support for main + sub-spindle (including spindle selection and synchronization) Correct M-codes for: main spindle on/off (CW/CCW) sub-spindle on/off (CW/CCW) spindle synchronization chuck open/close for main and sub-spindle Support for: part transfer between main and sub-spindle cut-off and pick-up driven tools with C-axis and Y-axis We are currently using the HWACHEON HI-TECH 230 AL post as a starting point, but it does not support the sub-spindle configuration of our BL YSMC machine. If helpful, I can provide: the existing AL post we are using now, the machine’s G/M-code list from the controller, sample NC programs generated directly from the machine tool vendor. Could you please help with: a dedicated post for HWACHEON HI-TECH 230 BL YSMC, or guidance / a modified version of the existing AL post with proper sub-spindle support? Thank you in advance for your support and any guidance. Best regards, Kamil Show More

Hello, the comand after G33 is not complet.  Original code from Fusion is "N151 Z20" but the machine stops at this point. The right code must be "N151 G0 Z20". Maybe that will be fixed.   thank you   (GEWINDE_M10X1.5) N138 M5 N139 M1 N140 T13 M6 N142 G90 G94 G18 N143 G54 N144 M8 N145 G97 S318 M3 N146 G0 X0. Z20. N147 G0 Z10. N148 Z20. N149 Z10. N150 G33.1 Z-22.6 K1.5 N151 Z20. (Original Code from Fusion) G0 is missing N152 M9 N153 G53 G0 X240. N154 G53 G0 Z0.   Show More

Here in south America Romi mills and lathes have a very strong pressence.  Would be very usefull to have post processors for them. At the moment it would be very helpfull for us  to have such for: Romi D1250 mill with MGR 320 4th axis Romi D600 mill with MGR 210 4th axis Thanks Show More

Hi, There is a problem with the code in the Linux CNC turning postprocessor when drilling. The machine makes unnecessary movements. (Moves back and forth at rapid traverse (see G-code)).   Actually, drilling should be done with the drilling cycle (G81 / G83 (peck drilling)).   Would it be possible to fix the problem and/or implement the drilling cycle? Thank you.   (BOHREN_mit_Eilgangsausfahrt) N76 M5 N77 M1 N78 T1 M6 N80 G90 G94 G18 N81 G54 N82 M8 N83 G97 S3183 M3 N84 G0 X0. Z10. N85 G0 Z5. N86 Z10. (unnecessary) N87 Z5. (unnecessary) N88 Z4.319 (unnecessary, but maybe ok) N89 G1 Z-44.95 F190 N90 G0 Z5. N91 Z10. N92 M9 N93 G53 G0 X240. N94 G53 G0 Z0.   Show More

Hi, I don't know the correct place to post this I just became aware of this post  I tried it out and it's great - Thanks I found one issue When it outputs the tool data for a chamfer tool it outputs the incorrect tip angle and it does not output the tip diameter May you can fix this? Best Regards Pat Manning AccuTech Limited Show More

Matsuura H.Plus-300 PC15 Are there any proven post processors available for this machine yet? I have looked through the library but can only find the generic 5-axis Matsuura post processor.  Show More

Hi! I would like to have a line "WORKPIECE" (with additional parameters: cube or cylinder; X-;Y-;X+;X-;Z+;Z- ) on the beginning of the posted cnc program (so i can see the raw material, workpiece during the simulation on the cnc machine).   I have another problem with the home positioning, implemented with "SUPA":  The finally posted parameters "D0 SUPA X0 Y0" and "Z0" are outside the machine's working area. These should be changed to the following values: "X-150; Y-1; Z-10" ...or they should have a data request section in the "Post process" window.   Best regards, Gellert Show More

Good morning,   I would like to propose the native implementation of the G05.3 (Surface Finish Quality) command within the Hurco post processor for Autodesk CAM. This function allows adjusting the surface finish quality through the P parameter, which can range from 1 to 100, following this logic:   "The G05.3 command is used with the Select Surface feature. G05.3 P_, where the P value is 1 to 100. P1 gives a smoother surface but requires a longer cutting time. P100 cuts down time to cut the part, but gives a rougher surface finish."   Official Hurco reference: https://support.hurco.com/wp-content/uploads/hurco_mill/NC_Programming/#XREF_25495_Surface_Finish   Currently, this functionality is not officially integrated into the Hurco post processors provided with Autodesk Fusion/Inventor CAM. However, the need to manage the G05.3 command has already been discussed in the community, as highlighted in this thread:   https://forums.autodesk.com/t5/hsm-post-processor-forum/hurco-sfq-settings/m-p/6097690   My proposal is as follows:   - Add native support for the G05.3 command in Hurco posts. - Allow the P value to be set per individual toolpath by configuring the property with scope: "operation" in the post processor, so that the surface quality can be tailored specifically for each CAM strategy.   I believe that implementing this feature would be very useful to enhance the management of surface finish quality, bringing tangible benefits in terms of flexibility and control over machining results. Thank you for your attention. Best regards   **I have already created this post in the HSM post processor forum, but I thought it would be appropriate to publish it here now for the forum dedicated to new ideas. Show More

A post-process would be needed for the CMZ TA 20 YS Fanuc 32i Model B with a subspindle. I had one made specifically for this, because the existing Fanuc ones aren't fully compatible with the machining processes, but it's not complete with all the machining processes. Also implement the option to choose whether to work with the C-axis or Y-axis when milling   Show More

In the post library lots of machine manufacturers are available, but not Fehlmann. I could use a post for a Fehlmann Versa 645 machine.   Thanks for considering! Show More

We need a postprozessor for a emmegi Sattelite XT 7800. Show More