# Error message during uploading Arduino **URL:** \ **Category:** Software\ **Created:** [November 26, 2018, 6:00pm UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855 "2018-11-26T18:00:02Z")\ **Posts on this page:** 20\ **Page:** 2
**Author:** ![Gero](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/gero/32/17487_2.png) [@Gero](https://forums.maslowcnc.com/u/Gero)\ **Post date:** [November 28, 2018, 8:49pm UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/21 "2018-11-28T20:49:53Z")
> [@sarham6](#): > > what is the Rotation Radius The distance from the centre of the cutting-bit to where the chains attach to the sled. ![image](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/0/02e3c03f70270ae90d24cbb415696443bd4aabce.jpeg) ---
**Author:** ![madgrizzle](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/madgrizzle/32/1372_2.png) [@madgrizzle](https://forums.maslowcnc.com/u/madgrizzle)\ **Post date:** [November 28, 2018, 8:50pm UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/22 "2018-11-28T20:50:45Z")
Rotation radius is (generally speaking) the distance from the router bit to the point on the ring/linkage kit where the chain is attached. ---
**Author:** ![sarham6](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@sarham6](https://forums.maslowcnc.com/u/sarham6)\ **Post date:** [November 29, 2018, 11:53am UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/23 "2018-11-29T11:53:04Z")
In GroundControl I have follow all the required steps to measure the chain several times. Every time the distance is -12.7mm, so I have changed manually to 3030mm. I have the following message: (the sled is not keeping up with the expected position and has halted. Click stop button to clear the alarm. More information at https:// [github.com/MaslowCNC/Firmware/wiki/keeping.up](http://github.com/MaslowCNC/Firmware/wiki/keeping.up)) I have tried the Right Motor also after changing the distance to -12.7mm but still receiving the same message. I hope nothing happened to Motors. Kindly help. ---
**Author:** ![madgrizzle](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/madgrizzle/32/1372_2.png) [@madgrizzle](https://forums.maslowcnc.com/u/madgrizzle)\ **Post date:** [November 29, 2018, 12:38pm UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/24 "2018-11-29T12:38:00Z")
> [@sarham6](#): > > Every time the distance is -12.7mm, My suggestion is to first figure out why you are getting a -12.7 mm distance between motors… I really, really think that you aren’t following the steps correctly because a -12.7 mm distance makes absolutely perfect sense if you are just manually laying the chains across the sprockets rather than using the left motor to feed out the required amount of chain. Watch this video, starting around the 3:20 mark… it gets blurry from time to time, but the author is doing it correctly. [![](https://img.youtube.com/vi/zcKQeTfn5cQ/hqdefault.jpg "Maslow CNC Setup: Calibrating the Maslow") ](https://www.youtube.com/watch?v=zcKQeTfn5cQ) ---
**Author:** ![sarham6](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@sarham6](https://forums.maslowcnc.com/u/sarham6)\ **Post date:** [November 29, 2018, 5:17pm UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/25 "2018-11-29T17:17:33Z")
I have follow all the mentioned steps as above and still the distance between the Motors is -12.7mm. However I continue and during the adjusting of the left chain the motor continue to work until the string start to be close to the motor (different from the film above) so I have to stop the machine. In addition, is the value mentioned in the film ( 3050mm) generated automatically? Please help. ---
**Author:** ![madgrizzle](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/madgrizzle/32/1372_2.png) [@madgrizzle](https://forums.maslowcnc.com/u/madgrizzle)\ **Post date:** [November 29, 2018, 5:56pm UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/26 "2018-11-29T17:56:32Z")
I don’t understand how it gives a value of -12.7 mm. If you set the sprockets to 12 o’clock and hit define zero in the previous step, then extended the chain from left sprocket to right sprocket by the method shown in the video, when you press measure, it should give you a number close to what you measure by hand. ---
**Author:** ![sarham6](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@sarham6](https://forums.maslowcnc.com/u/sarham6)\ **Post date:** [November 29, 2018, 6:45pm UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/27 "2018-11-29T18:45:39Z")
I have follow all the mentioned steps as mentioned in DIY Homesmith Step 5 part 3 and still the distance between the Motors as mentioned in the summary is -12.7mm. However I continue and during the adjusting of the left chain the motor continue to work until the string start to be close to the motor (different from the film above) so I have to stop the machine. In addition, is the value mentioned in the film ( 3050mm) generated automatically? Please not that I have only the value which I entered for rectract. Please help. ---
**Author:** ![Gero](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/gero/32/17487_2.png) [@Gero](https://forums.maslowcnc.com/u/Gero)\ **Post date:** [November 29, 2018, 6:58pm UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/28 "2018-11-29T18:58:48Z")
Never seen a minus in the motor distance, for now just go to settings and change to what you measure by hand. Close GC and reboot. What is the behaviour now if you move the sled with the arrow keys in GC? Is direction correct? Please also upload a copy of your -\>groundcontrol.ini\<- here. In widows it’s found in the user folder I think. Don’t worry, we will crack this nut way before christmas 😉 ---
**Author:** ![sarham6](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@sarham6](https://forums.maslowcnc.com/u/sarham6)\ **Post date:** [November 29, 2018, 7:36pm UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/29 "2018-11-29T19:36:21Z")
[Computed Settings] distperrot = 63.5 kpposmain = 1300 kiposmain = 0 kdposmain = 34 propweightmain = 1 kpposz = 1300 kiposz = 0 kdposz = 34 propweightz = 1 kpvmain = 5 kivmain = 0 kdvmain = 0.28 kpvz = 5 kivz = 0 kdvz = 0.28 chainoversprocketcomputed = 2 fpwmcomputed = 3 kinematicstypecomputed = 2 [Maslow Settings] bedheight = 1219.2 openfile = motoroffsety = 430.0 sledwidth = 310 zaxissafeheight = 5 bufferon = 0 bedwidth = 2438.4 comport = COM6 macro1\_title = Macro 1 sledheight = 139 macro2 = macro1 = zaxis = 0 sledcg = 79 macro2\_title = Macro 2 colorscheme = Light zdistperrot = 3.17 motorspacingx = -12.7 [Advanced Settings] rotationradius = 150.0 chainextendlength = 1650 kiv = 0 gearteeth = 10 spindleautomate = None kdvz = 0.28 chainsagcorrection = 0 chainpitch = 6.35 chainlength = 3360 propweightz = 1 zencodersteps = 7560.0 maxfeedrate = 800 enablepospidvalues = 0 rightchaintolerance = 0 enablevpidvalues = 0 maxtouchprobeplungedistance = 0.0 kpvz = 5 kdposz = 34 chainoversprocket = Bottom kpposz = 1300 fpwm = 490Hz kdpos = 34 encodersteps = 8113.73 truncate = 0 homex = 0.0 homey = 0.0 kinematicstype = Triangular kipos = 0 kdv = 0.28 kiposz = 0 digits = 4 kppos = 1300 kpv = 5 propweight = 1 positionerrorlimit = 2.0 kivz = 0 leftchaintolerance = 0 [Ground Control Settings] zoomout = pagedown centercanvasonresize = 0 viewscale = .45 zoomin = pageup validextensions = .nc, .ngc, .text, .gcode [Background Settings] backgroundfile = manualreg = [] ---
**Author:** ![sarham6](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@sarham6](https://forums.maslowcnc.com/u/sarham6)\ **Post date:** [November 29, 2018, 7:37pm UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/30 "2018-11-29T19:37:34Z")
With reference to the behavior, I am checking and will come to you soon. ---
**Author:** ![sarham6](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@sarham6](https://forums.maslowcnc.com/u/sarham6)\ **Post date:** [November 30, 2018, 9:54am UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/31 "2018-11-30T09:54:18Z")
The arrow does not make any movement. After reboot and open the GC received this message: (Unable to find valid machine position for chain lengths 0.00, 0.00. Please set the chains to a known length. ---
**Author:** ![Gero](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/gero/32/17487_2.png) [@Gero](https://forums.maslowcnc.com/u/Gero)\ **Post date:** [November 30, 2018, 10:02am UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/32 "2018-11-30T10:02:58Z")
Try what happens if you set the chain length manually: -\>Actions -\>Advanced -\> Set chain length… ![image](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/1/152b81eff0525bcde673dc7da5751066347e7b45.png) ---
**Author:** ![sarham6](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@sarham6](https://forums.maslowcnc.com/u/sarham6)\ **Post date:** [November 30, 2018, 11:19am UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/33 "2018-11-30T11:19:55Z")
I follow your instructions the I go to action-calibrate and do all the steps without " pull the chain and measure" and the result is still -12.7mm. I have tried again and this time I have the same above message but 0,0 became 1650,1650 ( this reflected in GrooudControl.In) but the result is same. ---
**Author:** ![Gero](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/gero/32/17487_2.png) [@Gero](https://forums.maslowcnc.com/u/Gero)\ **Post date:** [November 30, 2018, 11:31am UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/34 "2018-11-30T11:31:20Z")
Did you change that setting before you restarted? Can you post a picture of your frame? Edit: Don’t know if it will help, but maybe worth a try: - wipe Eeprom - rename groundcontrol.ini to .old - upload an older firmware like 1.23 (assuming you are on 1.24) and see if a ‘clean start’ gives the same results. ---
**Author:** ![madgrizzle](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/madgrizzle/32/1372_2.png) [@madgrizzle](https://forums.maslowcnc.com/u/madgrizzle)\ **Post date:** [November 30, 2018, 1:13pm UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/35 "2018-11-30T13:13:20Z")
> [@sarham6](#): > > I follow your instructions the I go to action-calibrate and do all the steps without " pull the chain and measure" and the result is still -12.7mm. If you don’t “pull the chain and measure”, it won’t measure the distance between motors and so the original value you had (-12.7mm) will remain as the value. ---
**Author:** ![sarham6](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@sarham6](https://forums.maslowcnc.com/u/sarham6)\ **Post date:** [November 30, 2018, 7:29pm UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/36 "2018-11-30T19:29:44Z")
- I renamed groundcontrol fil - i dont know how to wipe Eeprom - I can take photo for the frame but I dont know how to uploaded with the message. - Below the steps I did in details: - Open GC. - Setting - I write distance between motors = 3030mm - Action - Manual Calibration - I write distance between motors = 3030mm - I write rotation radius = 150mm - Distance from top of work space to motor - I consider = 430mm - Triangular - Chain feed - Bottom. \*Calibration - I have skip the screen ( use the chain to measure the distance…) We reach the screen asked to adjust the Left Chain, when press the button, motor halted. I have reboot and follow the normal instruction ( not manual) and everything go smoothly until pressing the tight the chain and measure and as before the chain became tight for a second and make sound and has a slack. Upon checking the Groundcontrol.ini the distance between motors show -12.7mm. I really dont know what to do next. Thanks ---
**Author:** ![madgrizzle](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/madgrizzle/32/1372_2.png) [@madgrizzle](https://forums.maslowcnc.com/u/madgrizzle)\ **Post date:** [November 30, 2018, 7:35pm UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/37 "2018-11-30T19:35:55Z")
Are you setting the sprockets to 12 o’clock and then pressing define zero? ---
**Author:** ![Gero](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/gero/32/17487_2.png) [@Gero](https://forums.maslowcnc.com/u/Gero)\ **Post date:** [November 30, 2018, 8:05pm UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/38 "2018-11-30T20:05:06Z")
> [@sarham6](#): > > I can take photo for the frame but I dont know how to uploaded with the message When you reply to a post you can use the ‘upload button’. The reason I’m asking for the picture of your setup is that I want to compare with the settings in the gc.ini file ![image](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/7/7a6c3d80c897bbf4c15bb393a1779ea64e9bffe7.png) ---
**Author:** ![sarham6](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@sarham6](https://forums.maslowcnc.com/u/sarham6)\ **Post date:** [November 30, 2018, 8:21pm UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/39 "2018-11-30T20:21:06Z")
As Requested. ![Photo%201](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/d/d178032df7705766748d9a8bbd2d8ccefb9a1bba.jpeg) ![Photo%202](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/b/b4f421bab429d0a101bd6db1f194a418abda8db9.jpeg) ---
**Author:** ![sarham6](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@sarham6](https://forums.maslowcnc.com/u/sarham6)\ **Post date:** [November 30, 2018, 8:22pm UTC](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855/40 "2018-11-30T20:22:00Z")
Yes. Thank you [Previous page](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855.md?page=1) [Next page](https://forums.maslowcnc.com/t/error-message-during-uploading-arduino/7855.md?page=3)