Re: Bed Auto Leveling.. check this out August 18, 2014 06:13AM |
Registered: 11 years ago Posts: 791 |
Re: Bed Auto Leveling.. check this out August 18, 2014 11:43AM |
Registered: 9 years ago Posts: 20 |
Re: Bed Auto Leveling.. check this out August 18, 2014 08:13PM |
Registered: 9 years ago Posts: 20 |
Re: Bed Auto Leveling.. check this out August 18, 2014 08:35PM |
Registered: 10 years ago Posts: 167 |
Quote
Draob
Some printers who have a metal bed use a magnetic sensor directly on the carriage and get the same results with +/- .05 precision everytime.
Re: Bed Auto Leveling.. check this out August 18, 2014 09:12PM |
Registered: 11 years ago Posts: 791 |
Quote
AbuMaia
Quote
Draob
Some printers who have a metal bed use a magnetic sensor directly on the carriage and get the same results with +/- .05 precision everytime.
Would a Hall effect sensor be able to detect a magnetic field generated by the current in the heatbed (if there is one)?
Re: Bed Auto Leveling.. check this out August 19, 2014 06:52PM |
Registered: 9 years ago Posts: 38 |
Re: Bed Auto Leveling.. check this out August 22, 2014 03:55AM |
Registered: 9 years ago Posts: 38 |
Re: Bed Auto Leveling.. check this out September 02, 2014 02:02AM |
Registered: 10 years ago Posts: 11 |
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intosite
What value disc capacitor should i try?
Re: Bed Auto Leveling.. check this out September 09, 2014 03:50PM |
Registered: 9 years ago Posts: 3 |
Re: Bed Auto Leveling.. check this out September 09, 2014 04:35PM |
Registered: 12 years ago Posts: 548 |
Re: Bed Auto Leveling.. check this out September 09, 2014 10:22PM |
Registered: 10 years ago Posts: 167 |
Re: Bed Auto Leveling.. check this out September 10, 2014 02:27PM |
Registered: 10 years ago Posts: 651 |
Re: Bed Auto Leveling.. check this out September 10, 2014 06:51PM |
Registered: 11 years ago Posts: 791 |
Quote
FA-MAS
I'm a little confused on setting the offset. I understand the tutorials say take the nozzle and touch the bed, then back it off so you have the clearance of a sheet of paper, just like you would do if you did it manually. Lets say it's .1mm thick. Then set that as X0 Y0 Z0 and then put the probe/microswitch down on that same spot till it triggers. Effectively setting it so that when you G29, the bed is probed, and when you print Z0 is supposed to be at .1mm, but my question comes in with Slic3r. Looking at the gcode, it looks like it actually puts the first layer down at a height at which it's told to. In my example .35 but as the tutorials tell us to set the offset, that's technically .45 and my layers aren't sticking. Is my thought right on that?
Re: Bed Auto Leveling.. check this out September 10, 2014 06:57PM |
Registered: 10 years ago Posts: 651 |
Re: Bed Auto Leveling.. check this out September 10, 2014 07:20PM |
Registered: 11 years ago Posts: 791 |
Quote
FA-MAS
I've got the offset right with that method. I'm saying that if you look at the gcode, slic3r moves the nozzle up the distance set as the 1st layer in the settings (G0 Z0.35 in my example) from where the autolevel measured Z0 thus making it's true height off the bed Z0.45 and then the layer's not squished enough.
Re: Bed Auto Leveling.. check this out September 10, 2014 08:03PM |
Registered: 10 years ago Posts: 167 |
Quote
regpye
Using this method is so easy and very accurate too.
Just one variable to change in the firmware and then the rest is done automatically.
1. Home the Z. It will be above the bed but will read as zero position.
2. Lower nozzle to bed position. Use paper to get the correct bed space.
3. Send M114 from Pronterface to read the position.
4. The reading shown on the screen will be the exact value to put in the firmware for the offset.
5. Program the board as usual.
Takes just a couple of minutes beginning to end and can be checked at anytime and changed if anything moves out of kilter So Easy.
Re: Bed Auto Leveling.. check this out September 10, 2014 09:11PM |
Registered: 11 years ago Posts: 791 |
Quote
AbuMaia
Quote
regpye
Using this method is so easy and very accurate too.
Just one variable to change in the firmware and then the rest is done automatically.
1. Home the Z. It will be above the bed but will read as zero position.
2. Lower nozzle to bed position. Use paper to get the correct bed space.
3. Send M114 from Pronterface to read the position.
4. The reading shown on the screen will be the exact value to put in the firmware for the offset.
5. Program the board as usual.
Takes just a couple of minutes beginning to end and can be checked at anytime and changed if anything moves out of kilter So Easy.
Well this is weird. If I use your method, I get a Z offset of -4.1. If I use ZennMasterZ's method of starting from the extruder a paper's thickness off the glass, set position to 0, then adjust until the probe switch clicks, I get a Z offset of -10.8. What's going on? Which number should I use?
Re: Bed Auto Leveling.. check this out September 10, 2014 09:31PM |
Registered: 10 years ago Posts: 167 |
Quote
regpye
If you want to do it the hard way, keep doing as you have been.
My method works every time and is very easy. Not had a failure yet and I have setup many this way.
Re: Bed Auto Leveling.. check this out September 10, 2014 11:20PM |
Registered: 11 years ago Posts: 791 |
Quote
AbuMaia
Quote
regpye
If you want to do it the hard way, keep doing as you have been.
My method works every time and is very easy. Not had a failure yet and I have setup many this way.
Do you get as big a variation in numbers when you do it both ways?
Re: Bed Auto Leveling.. check this out September 11, 2014 12:55AM |
Registered: 10 years ago Posts: 231 |
Quote
FA-MAS
I've got the offset right with that method. I'm saying that if you look at the gcode, slic3r moves the nozzle up the distance set as the 1st layer in the settings (G0 Z0.35 in my example) from where the autolevel measured Z0 thus making it's true height off the bed Z0.45 and then the layer's not squished enough.
Re: Bed Auto Leveling.. check this out September 11, 2014 08:28PM |
Registered: 10 years ago Posts: 167 |
Quote
regpye
Quote
AbuMaia
Quote
regpye
If you want to do it the hard way, keep doing as you have been.
My method works every time and is very easy. Not had a failure yet and I have setup many this way.
Do you get as big a variation in numbers when you do it both ways?
I have only done the one way.
Re: Bed Auto Leveling.. check this out September 11, 2014 09:31PM |
Registered: 9 years ago Posts: 3 |
Re: Bed Auto Leveling.. check this out September 11, 2014 11:12PM |
Registered: 10 years ago Posts: 167 |
Re: Bed Auto Leveling.. check this out September 12, 2014 01:31AM |
Registered: 9 years ago Posts: 3 |
Re: Bed Auto Leveling.. check this out September 14, 2014 06:58AM |
Registered: 10 years ago Posts: 14,672 |
Re: Bed Auto Leveling.. check this out September 14, 2014 05:33PM |
Registered: 11 years ago Posts: 791 |
Quote
dc42
For anyone interested, I do 5-point bed levelling (4 corner points + centre of the bed) using a differential IR sensor that I have developed and Duet hardware. The sensor uses two modulated infrared beams and picks up their reflections from the bed, inspired by height sensing method used on the Dambusters raid. I have manufactured two batches of these boards for other 3D printer owners. Most of them use the board on Ormerods but at least one uses it on a Mendel. I have some boards left from the second batch. See [miscsolutions.wordpress.com] for more informaton about the board and [forums.reprap.org] for ordering details.
Does anyone have any software or just the basic algorithm for using more than 5 probe points? The 5 point compensation works fairly well, but on the Ormerod at least I think 9 point compensation would work better.
Re: Bed Auto Leveling.. check this out September 14, 2014 05:40PM |
Registered: 10 years ago Posts: 167 |
Re: Bed Auto Leveling.. check this out September 16, 2014 02:38PM |
Registered: 9 years ago Posts: 32 |
Re: Bed Auto Leveling.. check this out September 16, 2014 02:41PM |
Registered: 10 years ago Posts: 651 |
Re: Bed Auto Leveling.. check this out September 16, 2014 03:03PM |
Registered: 12 years ago Posts: 548 |