Teacup checksum error I am running teacup on my Adruino Duemilanove when I use pronterface or any other 3D program I get this output where my machine just hangs. start Printer is now online 0 mm of filament used in this print rs N0 Expected checksum 41 rs N0 Expected checksum 52 rs N7 Expected checksum 6 rs N7 Expected checksum 6 rs N7 Expected checksum 6 rs N7 Expected checksum 6 rs N7 Expected checksum 6 rs N7 Expected checksum 6 rs N7 Expected checksum 6 If any one could help me that would be great. https://reprap.org/forum/read.php?147,95357,95357#msg-95357 Wed, 07 Oct 2026 17:31:26 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?147,95357,110522#msg-110522 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,110522#msg-110522 dansxmods Firmware - experimental, borrowed, and future Mon, 19 Dec 2011 01:34:51 -0500 https://reprap.org/forum/read.php?147,95357,110485#msg-110485 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,110485#msg-110485
The bad codes are normal and if you would like to get rid of them you can use the replace.csv file to do so.

The other issue with the weird E values is because you are trying to make something with really small moves (maybe less than 0.1mm layer height). This is an issue in skeinforge that was only fixed in version 45. So you will need to get the newest version.]]> Sublime Firmware - experimental, borrowed, and future Sun, 18 Dec 2011 13:46:02 -0500 https://reprap.org/forum/read.php?147,95357,110461#msg-110461 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,110461#msg-110461
G1 X93.42855 Y89.61676 Z7.0 F1800.0 E0.008607
G1 X93.4279 Y89.61975 Z7.0 F1800.0 E6.9e-05
G1 X94.84372 Y90.29826 Z7.0 F1800.0 E0.035325

Middle line looks wrong somehow.]]> dansxmods Firmware - experimental, borrowed, and future Sun, 18 Dec 2011 07:08:30 -0500 https://reprap.org/forum/read.php?147,95357,110453#msg-110453 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,110453#msg-110453
ok E: Bad M-code 83
ok E: Bad M-code 201
ok E: Bad M-code 201
ok E: Bad M-code 83
ok E: Bad M-code 201
ok E: Bad M-code 201
ok E: Bad M-code 83
ok E: Bad M-code 201
ok E: Bad M-code 201


then I get:
rs N7198 Expected checksum 30
or some other checksum.

I am running the Gen7 1.3.1 electronics with the ATMega 644 I think this could be RAM related.]]> dansxmods Firmware - experimental, borrowed, and future Sun, 18 Dec 2011 05:17:34 -0500 https://reprap.org/forum/read.php?147,95357,96262#msg-96262 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,96262#msg-96262
Quote

I don't know of any machine that runs with negative x and y axis using absolute positioning. This could be causing firmware issues since noone uses it this way.

Now you know one, it's me. Where to origin in located is less a property of the machine, more a decision of the G-code compiler.]]> Traumflug Firmware - experimental, borrowed, and future Thu, 01 Sep 2011 06:40:42 -0400 https://reprap.org/forum/read.php?147,95357,96227#msg-96227 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,96227#msg-96227
I started with 39 and after 3 months of printing with it I switched to Skeinforge 40 and got better results the first day.]]> Sublime Firmware - experimental, borrowed, and future Wed, 31 Aug 2011 21:53:35 -0400 https://reprap.org/forum/read.php?147,95357,96223#msg-96223 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,96223#msg-96223 the print goes from 20.0 mm to 130.0 mm in X
and is 110.0 mm wide

the print goes from 20.0 mm to 130.0 mm in Y
and is 110.0 mm wide

the print goes from 0.0 mm to 1500.0 mm in Z
and is 1500.0 mm high

ok E: Bad M-code 108

it sticks at 1.30%]]> Kilo6 Firmware - experimental, borrowed, and future Wed, 31 Aug 2011 21:11:22 -0400 https://reprap.org/forum/read.php?147,95357,96222#msg-96222 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,96222#msg-96222 -------------------------------------------------------
> I still think this is a gcode generation issue. I
> don't know of any machine that runs with negative
> x and y axis using absolute positioning. This
> could be causing firmware issues since noone uses
> it this way.
>
> You can try sprinter firmware to try and
> elliminate the firmware as the issue.

Teacup allows you to set the software endstops to negatives. I have mine set to -120 to 120.


@Kilo6 try turning on Xon/Xoff in teacup.]]> Sublime Firmware - experimental, borrowed, and future Wed, 31 Aug 2011 20:54:47 -0400 https://reprap.org/forum/read.php?147,95357,96213#msg-96213 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,96213#msg-96213
You can try sprinter firmware to try and elliminate the firmware as the issue.]]> jv4779 Firmware - experimental, borrowed, and future Wed, 31 Aug 2011 19:19:33 -0400 https://reprap.org/forum/read.php?147,95357,96143#msg-96143 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,96143#msg-96143 Kilo6 Firmware - experimental, borrowed, and future Wed, 31 Aug 2011 09:32:35 -0400 https://reprap.org/forum/read.php?147,95357,96097#msg-96097 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,96097#msg-96097 How big is your print bed?

You go from -120, -120 to 120, 120.
Your print bed would have to be 240 x 240 to achieve this!]]> rhmorrison Firmware - experimental, borrowed, and future Wed, 31 Aug 2011 02:02:40 -0400 https://reprap.org/forum/read.php?147,95357,96083#msg-96083 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,96083#msg-96083 G90
G21
M103
M108 S210.0
G1 X-110 Y-110 Z1500 F600
G1 X-110 Y-110 Z950 F600
M101
G1 X110 Y-110 Z900 F2641
G1 X110 Y110 Z900 F9600
G1 X-110 Y110 Z900 F9600
G1 X-110 Y-110 Z900 F9600
M103
G1 X-110 Y-110 Z1500 F600
G1 X-120 Y120 Z1500 F9600
G1 X-120 Y120 Z950 F600
M101
G1 X100 Y120 Z900 F2641
G1 X120 Y100 Z900 F9600
G1 X120 Y-120 Z900 F9600
G1 X-120 Y-120 Z900 F9600
M103
G1 X-120 Y-120 Z1500 F600
G1 X-120 Y-120 Z950 F600
M101
G1 X-120 Y120 Z900 F2881
G1 X100 Y120 Z900 F9600
G1 X120 Y100 Z900 F9600
G1 X120 Y-120 Z900 F9600
G1 X-120 Y-120 Z900 F9600 It stops right here every time
M103
G1 X-120 Y-120 Z1500 F600
G1 X-130 Y-120 Z1500 F9600
G1 X-130 Y-120 Z950 F600
M101]]> Kilo6 Firmware - experimental, borrowed, and future Tue, 30 Aug 2011 21:07:43 -0400 https://reprap.org/forum/read.php?147,95357,96040#msg-96040 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,96040#msg-96040 Kilo6 Firmware - experimental, borrowed, and future Tue, 30 Aug 2011 13:39:59 -0400 https://reprap.org/forum/read.php?147,95357,96034#msg-96034 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,96034#msg-96034 jv4779 Firmware - experimental, borrowed, and future Tue, 30 Aug 2011 12:16:30 -0400 https://reprap.org/forum/read.php?147,95357,96002#msg-96002 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,96002#msg-96002
Quote

Another cause of an axis not going backwards is the endstop for that axis is not working or configured wrong.

This is true for the FiveD firmware, but not Teacup. Teacup ignores endstops for G0/G1.

In the G-code blob I don't see checksums at all. Now I'm wondering why Teacup complains about them being wrong. Does your G-code sender insert them silently?]]> Traumflug Firmware - experimental, borrowed, and future Tue, 30 Aug 2011 03:55:34 -0400 https://reprap.org/forum/read.php?147,95357,95950#msg-95950 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,95950#msg-95950 Kilo6 Firmware - experimental, borrowed, and future Mon, 29 Aug 2011 18:05:19 -0400 https://reprap.org/forum/read.php?147,95357,95906#msg-95906 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,95906#msg-95906
Another cause of an axis not going backwards is the endstop for that axis is not working or configured wrong.]]> jv4779 Firmware - experimental, borrowed, and future Mon, 29 Aug 2011 12:12:41 -0400 https://reprap.org/forum/read.php?147,95357,95902#msg-95902 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,95902#msg-95902
M104 S220 T0 (Extruder Temperature to 220 Celsius)
M109 S110 T0 (Heated Platform Temperature to 110 Celsius)
M107 (fan off)
G21 (Metric FTW)
G90 (Absolute Positioning)
G92 X0 Y0 Z0 (You are now at 0,0,0)
G0 Z15 (Move up for warmup)
M108 S255 (Extruder speed = max)
M6 T0 (Wait for tool to heat up)
G04 P5000 (Wait 5 seconds)
M101 (Extruder on, forward)
G04 P5000 (Wait 5 seconds)
M103 (Extruder off)
M01 (The heated build platform is heating up. Wait until after the lights have turned off for the first time, clear the test extrusion, and click yes.)
G0 Z0 (Go back to zero.)
G90
G21
M103
M108 S210.0
G1 X81.2 Y97.69 Z25.0 F960.0
G1 X81.2 Y97.69 Z19.8 F480.0
M101
G1 X81.86 Y95.28 Z19.6 F75.218
G1 X82.99 Y93.0 Z19.6 F960.0
G1 X84.99 Y90.48 Z19.6 F960.0
G1 X87.02 Y88.8 Z19.6 F960.0
G1 X89.23 Y87.56 Z19.6 F960.0
G1 X91.61 Y86.78 Z19.6 F960.0
G1 X94.08 Y86.48 Z19.6 F960.0
G1 X96.59 Y86.64 Z19.6 F960.0
G1 X98.78 Y87.19 Z19.6 F960.0
G1 X100.97 Y88.13 Z19.6 F960.0
G1 X102.19 Y88.86 Z19.6 F960.0
G1 X104.24 Y90.55 Z19.6 F960.0
G1 X105.91 Y92.6 Z19.6 F960.0
G1 X107.12 Y94.95 Z19.6 F960.0
G1 X107.84 Y97.52 Z19.6 F960.0
G1 X108.18 Y100.45 Z19.6 F960.0
G1 X108.7 Y102.33 Z19.6 F960.0
G1 X109.26 Y103.43 Z19.6 F960.0
G1 X109.68 Y103.96 Z19.6 F960.0
G1 X110.57 Y104.57 Z19.6 F960.0
G1 X111.24 Y104.76 Z19.6 F960.0
G1 X125.56 Y104.8 Z19.6 F960.0
G1 X125.55 Y113.52 Z19.6 F960.0
G1 X93.26 Y113.46 Z19.6 F960.0
G1 X91.93 Y113.28 Z19.6 F960.0
G1 X89.51 Y112.59 Z19.6 F960.0
G1 X87.28 Y111.46 Z19.6 F960.0
G1 X85.32 Y109.93 Z19.6 F960.0
G1 X83.65 Y108.02 Z19.6 F960.0
G1 X82.08 Y105.2 Z19.6 F960.0
G1 X81.3 Y102.69 Z19.6 F960.0
G1 X81.01 Y100.17 Z19.6 F960.0
G1 X81.2 Y97.69 Z19.6 F960.0
M103]]> Kilo6 Firmware - experimental, borrowed, and future Mon, 29 Aug 2011 11:48:51 -0400 https://reprap.org/forum/read.php?147,95357,95865#msg-95865 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,95865#msg-95865 Traumflug Firmware - experimental, borrowed, and future Mon, 29 Aug 2011 05:49:44 -0400 https://reprap.org/forum/read.php?147,95357,95773#msg-95773 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,95773#msg-95773 Kilo6 Firmware - experimental, borrowed, and future Sun, 28 Aug 2011 12:11:38 -0400 https://reprap.org/forum/read.php?147,95357,95682#msg-95682 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,95682#msg-95682
Quote

It isn't common to have negative numbers in the XYZ moves. This is caused by your STL not being orientated correctly.

Ahem. Negative numbers are just fine.

Until recently soft axis limits (X_MIN, X_MAX, ...) defaulted to 0...200mm though, so it might be a good idea to check these in config.h.]]> Traumflug Firmware - experimental, borrowed, and future Sat, 27 Aug 2011 08:32:29 -0400 https://reprap.org/forum/read.php?147,95357,95637#msg-95637 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,95637#msg-95637 jv4779 Firmware - experimental, borrowed, and future Fri, 26 Aug 2011 18:31:46 -0400 https://reprap.org/forum/read.php?147,95357,95635#msg-95635 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,95635#msg-95635 Kilo6 Firmware - experimental, borrowed, and future Fri, 26 Aug 2011 17:59:11 -0400 https://reprap.org/forum/read.php?147,95357,95616#msg-95616 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,95616#msg-95616 jv4779 Firmware - experimental, borrowed, and future Fri, 26 Aug 2011 14:39:58 -0400 https://reprap.org/forum/read.php?147,95357,95605#msg-95605 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,95605#msg-95605 Kilo6 Firmware - experimental, borrowed, and future Fri, 26 Aug 2011 13:12:05 -0400 https://reprap.org/forum/read.php?147,95357,95530#msg-95530 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,95530#msg-95530 Kilo6 Firmware - experimental, borrowed, and future Thu, 25 Aug 2011 22:47:19 -0400 https://reprap.org/forum/read.php?147,95357,95498#msg-95498 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,95498#msg-95498 jv4779 Firmware - experimental, borrowed, and future Thu, 25 Aug 2011 18:36:32 -0400 https://reprap.org/forum/read.php?147,95357,95408#msg-95408 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,95408#msg-95408
Quote

0 mm of filament used in this print

You're obviously missing something.]]> Traumflug Firmware - experimental, borrowed, and future Thu, 25 Aug 2011 04:41:01 -0400 https://reprap.org/forum/read.php?147,95357,95371#msg-95371 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,95371#msg-95371 Kilo6 Firmware - experimental, borrowed, and future Wed, 24 Aug 2011 22:14:02 -0400 https://reprap.org/forum/read.php?147,95357,95361#msg-95361 Re: Teacup checksum error https://reprap.org/forum/read.php?147,95357,95361#msg-95361 jv4779 Firmware - experimental, borrowed, and future Wed, 24 Aug 2011 20:54:42 -0400