*HELP NEEDED FOR TOO HIGH FEEDRATES SETTING IN PRINTER??*

Ok so i build my 3d printer and when i am testing it with pronterface manual keys it works fine with feedrates in pronterface X,Y[5000] Z[5] but but but when i load and send gcode in printer it runs very very fast and sometimes crossses the endstops and moves very fast.

POINT 1-: the thing that i notice is feedrates,,, i used G1 commands to set exact feedrates of my motors and devided it by 60 and then sets it in the marlin and when this all things done and now when i controlling printer manually with pronterface it runs again fine but after sending gcodes it runs very very fast nothing happen well so the question is why my printer does not take feedrates from marlin,,but takes feedrates from commands???

POINT 2-: the other thing that i notice is i am printing a 20mm cube but printer behave like printing a 20cm cube ??

So pls help me to solve this issue

gcode file that i use [www.thingiverse.com]

here is my movement setting

//=============================================================================
//============================== Movement Settings ============================
//=============================================================================
// @section motion

/**
 * Default Settings
 *
 * These settings can be reset by M502
 *
 * Note that if EEPROM is enabled, saved values will override these.
 */

/**
 * With this option each E stepper can have its own factors for the
 * following movement settings. If fewer factors are given than the
 * total number of extruders, the last value applies to the rest.
 */
//#define DISTINCT_E_FACTORS

/**
 * Default Axis Steps Per Unit (steps/mm)
 * Override with M92
 *                                      X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
 */
#define DEFAULT_AXIS_STEPS_PER_UNIT   { 80, 80, 4000, 94.69 }

/**
 * Default Max Feed Rate (mm/s)
 * Override with M203
 *                                      X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
 */
#define DEFAULT_MAX_FEEDRATE          { 12, 12, 0.16666, 25 }

/**
 * Default Max Acceleration (change/s) change = mm/s
 * (Maximum start speed for accelerated moves)
 * Override with M201
 *                                      X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
 */
#define DEFAULT_MAX_ACCELERATION      { 1500, 1500, 75, 7500 }

/**
 * Default Acceleration (change/s) change = mm/s
 * Override with M204
 *
 *   M204 P    Acceleration
 *   M204 R    Retract Acceleration
 *   M204 T    Travel Acceleration
 */
#define DEFAULT_ACCELERATION          1500    // X, Y, Z and E acceleration for printing moves
#define DEFAULT_RETRACT_ACCELERATION  3000    // E acceleration for retracts
#define DEFAULT_TRAVEL_ACCELERATION   1500    // X, Y, Z acceleration for travel (non printing) moves

/**
 * Default Jerk (mm/s)
 * Override with M205 X Y Z E
 *
 * "Jerk" specifies the minimum speed change that requires acceleration.
 * When changing speed and direction, if the difference is less than the
 * value set here, it may happen instantaneously.
 */
#define DEFAULT_XJERK                 15.0
#define DEFAULT_YJERK                 15.0
#define DEFAULT_ZJERK                  0.4
#define DEFAULT_EJERK                  4.0

Edited 3 time(s). Last edit at 08/21/2018 12:56AM by the robobuilder.

Both of your problems look like a microstepping issue - printer is running at full steps but DEFAULT_AXIS_STEPS_PER_UNIT are set for 1/16 microstepping. On your main board under each stepper driver there are jumper pins. You have to put jumpers on those pins to set correct microstepping.

ok thanks sir for reply

ok so in my ramps board i have 6 pins each of 2 pair between the drivers so should i install jumper to all those pins is it ok ???

and also is it not damage my board(i'm new to these electronics)???

Edited 1 time(s). Last edit at 08/21/2018 02:56AM by the robobuilder.

... to set the G-code speeds to the same max. values, as with your Marlin settings, you have to set it in the slicer.

The printing speeds (e.g. "G1 ... F3000") are defined and calculated in the slicer parameters and will "overrun" the Marlin settings ...

Edited 1 time(s). Last edit at 08/21/2018 03:11AM by VDX.

---

Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]

ok sir i checked many times but i connot find any feedrates speed set in slicer (or may be i missed them??)

i think the person those who created the gcodes have predefined the feedrates values in gcodes because whenever i convert STL--TO->>GCODE in slicer(no option to set feedrates) and after opening this file in pronterface and going to edit gcode option then there are feedrates like F7800 in gcodes, these are the highest value which my printer cannot accept

so editing feedrate in gcode itself is big big impossible for me,,,so pls help me to fix it??

Anybody have an answer of this???

... which slicer are you using?

In slic3r it's in "Settings"->"Print Settings"->"Speed":

---

Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]

sir i am using slicer 1.1.7 see the attachment and also i have one question "do installing jumper between all pins of pololu cause any ramps board damage like short circuit or etc???

and also i dont see any feedrate setting in your slicer too :/

I'm having this issue since last 17 days

ONE THING THAT I NOTICE---whenever i manually send feedrates like G1 .....F5000(or any value) then my printer accept this values instead of max default values which are set in marlin and because of this my printer accept gcodes feedrates instead of max feedrates from marlin....

Edited 3 time(s). Last edit at 08/21/2018 05:29AM by the robobuilder.

... the speed settings are the feedrate!

While in Slic3r it's defined as "mm/s", it's converted to "mm/min" in the G-code.

So 10mm/s in the speed settings will give F600 in G-code.

So your "F7800" in the G-code means a speed of 130mm/s, what's way too fast!!

---

Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]

thankyou sir now i am going to try with that calculation i hope all things works well

one more question before testing this

There are many feedrates values in gcode like G1....F7800,G1.....F5000 etc and they are also different for X,Y,Z because there are thousands of line in gcodes so setting one feedrate in slicer is for which axis and how it effect feedrates from gcodes????

Edited 1 time(s). Last edit at 08/21/2018 05:53AM by the robobuilder.

... no - the speed settings are "absolute defines" -- the slicer software calculates the feedrates to fit this set speeds for the specific axes or combinations ...

---

Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]

THANKYOU VICTOR SIR FOR YOUR SUPPORT AND HELP KEEP DOING THIS THING BECAUSE SERVING TO MANKIND IS SERVING TO GOD

AND MOST THANKS TO PIPER3D SIR, BECAUSE I FORGOT TO INSTALL JUMPER AND AFTER INSTALLING JUMPER BETWEEN DRIVER EVERYTHING WORKS FINE

by the way one last question i.e. which slic3r version you have shown in your above picture pls tell me version???

Edited 2 time(s). Last edit at 08/21/2018 08:54AM by the robobuilder.

... this was the version "1.3.1-dev" - but actually only the "1.3.0-dev" is in the official downoads: -- [slic3r.org]

Could be an automatic update, as my last downloads were 1.2.9.

Here a screenshot:

---

Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]

thanks

Edited 1 time(s). Last edit at 08/21/2018 01:19PM by the robobuilder.