Re: Bed Auto Leveling.. check this out November 21, 2013 10:08PM |
Registered: 10 years ago Posts: 1,433 |
Re: Bed Auto Leveling.. check this out November 21, 2013 10:54PM |
Registered: 11 years ago Posts: 791 |
Quote
uncle_bob
Apparently the servo world started out at 4.5 to 4.8V as a standard battery supply and they have been moving up in voltage ever since. The newer battery packs are all up around 6 to 6.5 volts. They still should have enough range to work on 5V....
Re: Bed Auto Leveling.. check this out November 22, 2013 07:44AM |
Registered: 10 years ago Posts: 1,433 |
Re: Bed Auto Leveling.. check this out November 23, 2013 04:51AM |
Registered: 10 years ago Posts: 3 |
Quote
AlexBorro
@Skew, your Z axis get reversed ONLY after performing G29?? Have you tried moving the Z axis after a G28 ??
It doesnt make sense since G29 don't affect anything related to axis movements..
It is a bug, I have just realized.. I will try to fix it asap.
Alex.
Re: Bed Auto Leveling.. check this out November 23, 2013 11:21AM |
Registered: 12 years ago Posts: 329 |
Re: Bed Auto Leveling.. check this out November 23, 2013 11:44AM |
Registered: 10 years ago Posts: 3 |
Re: Bed Auto Leveling.. check this out November 23, 2013 02:59PM |
Registered: 10 years ago Posts: 1,433 |
Re: Bed Auto Leveling.. check this out November 23, 2013 03:31PM |
Registered: 12 years ago Posts: 329 |
Re: Bed Auto Leveling.. check this out November 23, 2013 03:46PM |
Registered: 10 years ago Posts: 1,433 |
Re: Bed Auto Leveling.. check this out November 23, 2013 04:51PM |
Registered: 11 years ago Posts: 791 |
Quote
uncle_bob
An 8 x 8 array would give you a grid of points.
Simple answer to one corner being out is to make the bed flat. For what ever odd reason, many beds drift up and down, but they stay flat.
1) Is your glass flat when not clamped to anything? if not, replace it, it's cheap to do.
2) Is your glass flat when it's clamped only in two places? (not 3 or 4)
3) Is your heater bowing up in the middle? A bit of (careful) persuasion when it's hot may correct that. Don't go to far and break it...
4) Can you re-level the bed so it's flat rather than level? Auto level will take care of a flat plane.
Re: Bed Auto Leveling.. check this out November 23, 2013 04:54PM |
Registered: 12 years ago Posts: 329 |
Re: Bed Auto Leveling.. check this out November 23, 2013 08:38PM |
Registered: 10 years ago Posts: 1,433 |
Re: Bed Auto Leveling.. check this out November 24, 2013 08:44PM |
Registered: 10 years ago Posts: 10 |
Re: Bed Auto Leveling.. check this out November 24, 2013 08:54PM |
Registered: 11 years ago Posts: 791 |
Quote
agirgen
So far I have spent roughly 10 hours trying to get this to work properly. I could of manually leveled my print bed 60+ times in that amount of time. Not sure this is worth it.
Re: Bed Auto Leveling.. check this out November 24, 2013 09:31PM |
Registered: 10 years ago Posts: 10 |
Re: Bed Auto Leveling.. check this out November 24, 2013 09:38PM |
Registered: 11 years ago Posts: 791 |
Quote
agirgen
Uggh, I don't know... Inconsistent results? I followed the instructions and it worked once. After that it didn't. I have attached a video as well as my Configuration.h file. In the video, you can clearly see that the gap between the extruder and the glass isn't constant... And this is with the bed very level. Just doesn't seem to be doing what it's supposed to... Maybe I'm missing something.
Re: Bed Auto Leveling.. check this out November 24, 2013 09:44PM |
Registered: 10 years ago Posts: 10 |
Re: Bed Auto Leveling.. check this out November 24, 2013 10:14PM |
Registered: 10 years ago Posts: 1,433 |
Re: Bed Auto Leveling.. check this out November 24, 2013 10:36PM |
Registered: 11 years ago Posts: 791 |
Quote
uncle_bob
For what ever reason, people seem to have switch troubles. A real Micro Switch (yes it's a trademark) should get you below 0.01 mm. You can set up with a micrometer and check them pretty easily. The only time you usually have trouble with them is when you are hitting the arm or actuator in a way that's not repeatable. One example is using the straight arm style at the tip of the arm. They are designed to be hit on the flat of the arm.
Of course the switch is only as good as the positioning repeatability of the servo and the end play in the servo shaft (plus a few other even more minor things).
Re: Bed Auto Leveling.. check this out November 25, 2013 02:35AM |
Registered: 10 years ago Posts: 2 |
Re: Bed Auto Leveling.. check this out November 25, 2013 04:42AM |
Registered: 10 years ago Posts: 10 |
Quote
If I disconnect the servo and manually move the servo to some position and then connect it again I'm able to move it to one direction with M280 P0 SXXX (XXX being some value between 100-180) but it doesn't move to another direction. When servo is connected I can feel that it has power because I can't turn it.
Re: Bed Auto Leveling.. check this out November 25, 2013 08:58AM |
Registered: 10 years ago Posts: 1,433 |
Re: Bed Auto Leveling.. check this out November 25, 2013 09:32AM |
Registered: 10 years ago Posts: 10 |
Quote
uncle_bob
For what ever reason, people seem to have switch troubles. A real Micro Switch (yes it's a trademark) should get you below 0.01 mm. You can set up with a micrometer and check them pretty easily.
Re: Bed Auto Leveling.. check this out November 25, 2013 10:03AM |
Registered: 10 years ago Posts: 10 |
Quote
varjis
I'm having trouble moving the servo. I have ATX power supply and I'm trying to get the 5V power from the HD molex connection (red wire) which I've connected to Ramps 1.4 5V connection (next to reset switch) and I can measure and see that servos are getting 5V. But if I try to move the servo nothing happens.
Re: Bed Auto Leveling.. check this out November 25, 2013 11:22AM |
Registered: 10 years ago Posts: 2 |
Quote
agirgen
Quote
varjis
I'm having trouble moving the servo. I have ATX power supply and I'm trying to get the 5V power from the HD molex connection (red wire) which I've connected to Ramps 1.4 5V connection (next to reset switch) and I can measure and see that servos are getting 5V. But if I try to move the servo nothing happens.
Hello varjis,
Are you saying that you connected a 5 Volt source to the 5V VCC connection on the Ramps? You shouldn't have to do this... Just jumper the 5V VCC pins and you will get 5V at the servo connection.
Also, a lot depends on the type of servo you are using. In my experience with Arduino, plane ol analog servos work the best. In addition, some sub 9 gram servos run off of 3 volts, not 5... Is your servo getting hot when you connect it to 5V? You could also test the servo independently by hooking it up to an Arduino and loading up one of the sample sketches from the servo library (such as sweep).
http://playground.arduino.cc/Learning/SingleServoExample
Hope this helps
Re: Bed Auto Leveling.. check this out November 25, 2013 12:45PM |
Registered: 10 years ago Posts: 1,433 |
Re: Bed Auto Leveling.. check this out November 25, 2013 01:49PM |
Registered: 10 years ago Posts: 10 |
Re: Bed Auto Leveling.. check this out November 25, 2013 05:55PM |
Registered: 12 years ago Posts: 329 |
Re: Bed Auto Leveling.. check this out November 27, 2013 06:39AM |
Registered: 10 years ago Posts: 2 |
>>>G28 SENDING:G28 echoD init fail >>>G29 SENDING:G29 Bed x: 75 y: 125 z: 7.00 Bed x: 75 y: 75 z: 7.00 Bed x: 125 y: 75 z: 7.00 echo:endstops hit: X:44.00 Y:119.80 Z:7.00 >>>M114 SENDING:M114 X:94.00Y:69.80Z:7.20E:0.00 Count X: 94.00Y:69.80Z:7.20
#define ENABLE_AUTO_BED_LEVELING #ifdef ENABLE_AUTO_BED_LEVELING #define LEFT_PROBE_BED_POSITION 75 #define RIGHT_PROBE_BED_POSITION 125 #define BACK_PROBE_BED_POSITION 125 #define FRONT_PROBE_BED_POSITION 75 #define X_PROBE_OFFSET_FROM_EXTRUDER 31.00 #define Y_PROBE_OFFSET_FROM_EXTRUDER 5.20 #define Z_PROBE_OFFSET_FROM_EXTRUDER -7.20 #define Z_RAISE_BEFORE_HOMING 20 #define XY_TRAVEL_SPEED 3000 #define Z_RAISE_BEFORE_PROBING 20 #define Z_RAISE_BETWEEN_PROBINGS 20 // #define PROBE_SERVO_DEACTIVATION_DELAY 300 #endif
Re: Bed Auto Leveling.. check this out November 28, 2013 03:20AM |
Registered: 11 years ago Posts: 12 |