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SoliForum - 3D Printing Community → Software & Firmware → Bed center is incorrect (way off)
Don't know if this is an issue with my printer (SD4), Repetier Host, or Slic3r. I only assume its a software issue so I'm posting this here.
red dot added to photo to help see where the center of the print is.
it's really low and few cm right from the actual bed center.
Here's the model in Repetier-Host. (note though that this happens with any model).
Printer Settings:
Slic3r settings:
Did you try tweaking the Slic3r Bed Center numbers to something like x=96 y=92? If that helps, then just keep adjusting them to get centered.
Should be a case of basic measuring basic math and then setting the position . the other option is mark where you want center to be . Home the axes. then jog the extruded to you mark. take note of the x,y coordinates. enter those numbers into the software.
Tin
Thanks. Okay, wait so its different between individual printers?
This isnt mentioned in the wiki and if its the case thats weird.
wiki is user defined you know. so info can be changed and not always 100% correct. still dont see dump area in those settings like other SD printers. where does extruder go when you click the home button lower left in manual control?
you are using the wrong bed size 8x8 inch beds should read 200mmx200mm (accual conversion of 8" is just over 203mm but printers go with 200mm) plus 9mm in the x line for dump area in RH
so in RH x209mm and y200mm
also in your slic3r printer settings bed size should only read bed dimensions minus the dump area so 200x200 with center being 100x100
and RH bed size still needs printer type with the word 'Dump' after it and only add 9mm not 10 so 209mm not 195mm.
this was all discussed in another topic with you b4 wasnt it?
remember the 3D printer is blind, deaf, no arms etc. and must be told exactly where things are to start. and slicer dont need to know about the dump/park area to slice gcode for printing
does anybody have an SD3 or 4 un modified to confirm these settings? I have SD2 with 6x6 bed not 8x8. but thats the only dif in these settings
seems your printer reads dimensions from front right corner so since you had bed as smaller it drew center closer to right front corner
wiki is user defined you know. so info can be changed and not always 100% correct.
The point is something this important would be in the first line in the list of calibrations which need to be done. Thats why I dont think everyone has this.
still dont see dump area in those settings like other SD printers. where does extruder go when you click the home button lower left in manual control?
It goes to the back-right, a little out of the bed ("dump area"?).
you are using the wrong bed size 8x8 inch beds should read 200mmx200mm (accual conversion of 8" is just over 203mm but printers go with 200mm) plus 9mm in the x line for dump area in RH
so in RH x209mm and y200mm
It is not wrong bed size. It is the preset made for Solidoodle 4.
The bed size of SD4 is not perfect 200x200mm or 8''x8''. The left fan design for one thing prevents that. The bed is actually 205mm, and there is a fan sticking out about 1.8 cm from the left of the extruder which would hit itself on the left belt tensioner if the setting was at 200mm.
It's not just a Solidoodle 2 with increased 200 mm bed size. I hope it was though.
does anybody have an SD3 or 4 un modified to confirm these settings? I have SD2 with 6x6 bed not 8x8.
Yes, please someone with a SD4 tell me how it is for you.
in your other topic on this you mentioned RH host ver 85b, that ver has only SD2 & SD3 presets so must be newer ver. but SD3 & SD4 have same bed size/shape and if you look at the SD3 preset it shows those settings so maybe the SD4 settings got changed by somebody since yours dont show the dump area which is where it goes home to. (since printer starts in dump area its already counting that dimension just not seeing how far left bed really is). you cant change printer shape settings to compensate for fan on left etc without off setting center or bed print area. have you tried doing all the settings I posted above? if not it wont change this issue. and we cant help with that.
I wish you had signature filled in with printer info and mods as it looks like mods are done since pic 1 shows a glass bed which SD4 didnt have from factory.
the fan wont hit left side unless you try to print something in the farthest left area of bed. when you place objects they can be moved in the RH window b4 slicing. also if you want to just not use that left side (which will still make bed center 9mm to right) just use the printer type with Dump at end but instead of putting 209mm in the Y box in RH just put 200mm. maybe thats why its the way it is. either way an SD4 wont have a full 8x8 usable print area due to poor design on fan placement.
but if your bed is truely 205mmx205mm then the settings I said to use whould already allow 10mm of space on left side and 10mm at top making your center only a few MM further off center than normal due to your under sizing bed dimensions. so SD4 print surface is going to be smaller and off center compared to an SD3 by design
also bed size needs listed in even size (divisible by 2) so no fractions need put in for these settings to have to calculate (if they even accept decimals) and if you measure actual bed size you can use the next lower even full size when using this method of controller e.g. 202mmx202mm if desired. hence all 3D printers are 4x4, 6x6, 8x8, 12x12...
PS this topic should be in Solidoodle page to get replies from other sd4 owners. as this page is for all 3D printers
in your other topic on this you mentioned RH host ver 85b, that ver has only SD2 & SD3 presets so must be newer ver.
I don't know where you got this info, but you are again incorrect. Sorry. I got it from the Solidoodle website. It has a SD4 preset. You can check it out. Maybe the SD team updated it with SD4 presets, but since they are not the one developing Repetier Host they are not the ones versioning it. Or maybe they are the ones versioning their own flavor of Repetier Host, but either way the 85b version of Repetier Host I got from SD website has a SD4 preset.
have you tried doing all the settings I posted above? if not it wont change this issue. and we cant help with that.
Yes. This is what happens, and i tried this again today, if I set the print size to 200x200x200 and bed size in slic3r to 200x200mm: the extruder, when moved to 200 in Y, hits the front pulleys. As if the steps per mm value is incorrect (it is 88.00 by default).
I wish you had signature filled in with printer info and mods as it looks like mods are done since pic 1 shows a glass bed which SD4 didnt have from factory.
The glass bed is all I've added.
the fan wont hit left side unless you try to print something in the farthest left area of bed.
Which I have.
the front pulleys have been in the far forward path since SD2. no fix for that. especially if the pulleys have screws sticking through 3/4" like my SD2. also did you select the printer type with DUMP on end of name and add the 9mm to inputs I listed? or are you just trying to keep cairage from going too far left due to fan? if thats why then no it will never start in the true center of bed.
as for RH versions any changes made to a program will be reflected somewhere in version number/revision info. so NO I am not incorrect much less again. but if thats how you show apreciation to others that have been at this much longer that your self then I will stop trying to 'help' you from now on. good luck
Printer Settings:
In the drop down box where it says L_CARTESIAN_PRINTER; did you try selecting the option for the one that has DUMP after it?
as for RH versions any changes made to a program will be reflected somewhere in version number/revision info. so NO I am not incorrect much less again.
Actually you are wrong. Just download the installer from the Solidoodle site and have a look.
Giving wrong info is not helping.
In the drop down box where it says L_CARTESIAN_PRINTER; did you try selecting the option for the one that has DUMP after it?
Yes. Looks same to me.
n2ri wrote:as for RH versions any changes made to a program will be reflected somewhere in version number/revision info. so NO I am not incorrect much less again.
Actually you are wrong. Just download the installer from the Solidoodle site and have a look.
Giving wrong info is not helping.
so what help have you offered??
so what help have you offered??
He corrected you and gave the right info.
but if thats how you show apreciation to others that have been at this much longer that your self then I will stop trying to 'help' you from now on. good luck
How long you have been here has nothing to do with how experienced you are, your posts here are a good example.
I think it will be best if you stop helping without having the knowledge needed to help.
Let me explain you how most people give help in forums: they first check the topics with no replies. You, on the other hand, by posting trying to help but not helping, add post count to a thread without helping solve an issue.
And when shown how your info is incorrect you insist it is and get protective.
This isn't the first time I've noticed this.
http://www.soliforum.com/post/67925/#p67925
http://www.soliforum.com/post/69220/#p69220
Maybe it's time you stopped.
Using the DUMP version of printer type doesn't seem to affect the position any how.
Here are my results.
200x200 bed. Print wasnt centered:
195x185 bed. Still not centered:
now your doing the wrong thing with settings not what was posted. you didnt add the 9mm where I said for dump. seems you and cipher0 are the same person. just not following suggestions. only being negative and creating multi topics in multi threads on same issue due to being bull headed with negative response. thats why nobody replys anymore.
cipher0 has never posted any help ever including the posts you linked to..
stating RH ver 86b does or dont have SD4 setting presets is irrelevant to the issue. I only said my copy dont have it but both have SD3 printer shape presets to compare. maybe if you both would read all posts with a more open mind you may get a clue as to what if anything can be done for the issue. so like I said any further assistance has expired for both of you.
seems you and cipher0 are the same person.
Add johnjack to the list. And elmoret.
only being negative and creating multi topics in multi threads on same issue
I have a feeling the same topic was creating because you flooded the other one with your nonsense.
due to being bull headed
And now you're also throwing insults.
Please do everyone a favor and just leave this topic like you said you would.
thats why nobody replys anymore.
Bullshit.
cipher0 has never posted any help ever including the posts you linked to..
*I* didn't post those links. You don't even bother to read the usernames, how can you give decent advice?
stating RH ver 86b does or dont have SD4 setting presets is irrelevant to the issue.
*0.85b
It's relevant to your issue. Your issue is you make wrong claims, are told you are wrong, then deny you are wrong, and then finally go protective and blame the person who proved you wrong for being unthankful and your reason for not wanting to help anymore. And now it seems you've started throwing insults. Act more mature.
I only said my copy dont have it
No, you said
in your other topic on this you mentioned RH host ver 85b, that ver has only SD2 & SD3 presets so must be newer ver.
And yes, I didn't test the 9mm suggestion you made. Wasn't hard to forget while trying to find a camera, doing prints, taking photos and screencaps and uploading all that. I don't think that gave you the right to call me bull headed.
so in RH x209mm and y200mm
What in RH? "X Max"?, "Print Area Width"?, "Dump area Left"? Tried all of them individually, doesnt fix the issue, which if you would look in the photos I had posted, is an offset not only on the x axis and more than just 9 mm. Also, any change would also be visible in the 3d preview as well.
Just a thought...don't have an SD4, but this is what I would try...
What happens if, after you home all axes, Jog the print bed down a few mm for clearance...then on the command line:
Enter "G90" (switches to absolute mode)
then:
Enter "G1 X0 Y0"
This will put the extruder to where it thinks is starting position. Mark that point on the bed with a sharpie.
Then, you jog the carriage toward X Max in 10mm increments as far as you can. This will bring the extruder as far as it thinks it can go. Mark the extruder position on the print bed again. Then jog toward Y Max the same way; mark the position...you get the idea...essentially defining a rectangle of your printable area. Once you can see that, you'll probably also see that where you print your circles (in your pics) lies pretty close to the center of that defined area.
If you tried changing your bed size X / Y size settings to 200 with no effect, the issue could be in your firmware settings where bed size is defined and (I'm only assuming) your RH settings cannot override them. No doubt Solidoodle robbed the SD4 of some printable area due to the fan crashing into frame, etc.
Anyway, my thoughts are that if the SD defaults and firmware settings rob you of printable area to begin with in order to safeguard from crashes, then you may need to just live with it; otherwise, if you want to enable the full 200 x 200, then you will need to be wary of crashing into things when printing along the outer extremes.
now your doing the wrong thing with settings not what was posted. you didnt add the 9mm where I said for dump. seems you and cipher0 are the same person. just not following suggestions. only being negative and creating multi topics in multi threads on same issue due to being bull headed with negative response. thats why nobody replys anymore.
cipher0 has never posted any help ever including the posts you linked to..
stating RH ver 86b does or dont have SD4 setting presets is irrelevant to the issue. I only said my copy dont have it but both have SD3 printer shape presets to compare. maybe if you both would read all posts with a more open mind you may get a clue as to what if anything can be done for the issue. so like I said any further assistance has expired for both of you.
And you're the one calling others "bullheaded"?
And I understand english might not be your first language, but please use commas. it's hard reading your posts.
http://viewrz.com/video/nocomma
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I would do what IronMan suggested.
It would also help to explain what changing printer type to "same_name_DUMP" does.
Visually in the editor just a bit of y axis grid is added outisde of the bounds, and it doesn't affect the printing with the default values in any way.
Why don't you just move your model a little before you slice it?
Why don't you just move your model a little before you slice it?
That would work with a small model, but if he wants to do a print the size of his bed, it wont work.
I had the same problem. It turned out to be this line in my startup gcode.
m206 x159 y150 z0
This adds these values to all moves. After the head crashes it effectively has moved the centerpoint for that run.
SoliForum - 3D Printing Community → Software & Firmware → Bed center is incorrect (way off)
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