Re: Ebay SINTRON Kossel Mini full kit March 01, 2016 05:24PM |
Registered: 8 years ago Posts: 39 |
Re: Ebay SINTRON Kossel Mini full kit March 01, 2016 05:30PM |
Registered: 8 years ago Posts: 255 |
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Electric ant
WOW, WOW and WOW again. I finally made a print.
Couldn't have done it without this forum, so all thanks to you guys for the problems and cures you all have had.
And here it is First Print
Then I decided to try a new effector, and HERE it is.
None of them are perfect in any way but it's a start, more than I had 2 days ago.
Now I have a couple of questions for you all,
First is....how tight should the belts be ? because 1 of mine is slipping and it sounds horrible.
My top frame is all the way to the top of the tower posts and my belts are all pretty tight (I don't want to risk snapping 1 by tightening it too much).
And second......when in pronterface and I click on X home, all 3 axis go home. Same happens when I click Y or Z, all 3 go home.
I have attached my config file, if anyone can see anything wrong I would appreciate the info.
Thanks again to all of you that helped me. You should be proud of yourselves, I know I am.
Ant
Re: Ebay SINTRON Kossel Mini full kit March 02, 2016 05:04AM |
Registered: 8 years ago Posts: 104 |
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hacker
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Electric ant
....how tight should the belts be ? because 1 of mine is slipping and it sounds horrible.
My top frame is all the way to the top of the tower posts and my belts are all pretty tight (I don't want to risk snapping 1 by tightening it too much).
And second......when in pronterface and I click on X home, all 3 axis go home. Same happens when I click Y or Z, all 3 go home.
I have attached my config file, if anyone can see anything wrong I would appreciate the info.
The belts should be about bass string tight, can't tell the exact pitch I think single axis homing is for cartesians printers, where it makes more sense and poses less danger, not deltas, so don't worry about that.
Re: Ebay SINTRON Kossel Mini full kit March 02, 2016 05:39AM |
Registered: 8 years ago Posts: 255 |
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GrAndAG
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hacker
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Electric ant
....how tight should the belts be ? because 1 of mine is slipping and it sounds horrible.
My top frame is all the way to the top of the tower posts and my belts are all pretty tight (I don't want to risk snapping 1 by tightening it too much).
And second......when in pronterface and I click on X home, all 3 axis go home. Same happens when I click Y or Z, all 3 go home.
I have attached my config file, if anyone can see anything wrong I would appreciate the info.
The belts should be about bass string tight, can't tell the exact pitch I think single axis homing is for cartesians printers, where it makes more sense and poses less danger, not deltas, so don't worry about that.
My belts are no so tight, actually. Definitely not as bass string. I would say they are loose a bit. But they are not slipping at all. If they would slip the layers will be shifted or effector will hit an object, or some other "disasters" will be happen.
As for homing in pronterface, it's normal for deltas. Deltas do not have individual axis homing. Because if only one carriage is homing, the effector could go outside of printing area and crash to a tower or exceed angle limits of rot ends and broke them.
Re: Ebay SINTRON Kossel Mini full kit March 02, 2016 04:10PM |
Registered: 8 years ago Posts: 104 |
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hacker
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GrAndAG
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hacker
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Electric ant
....how tight should the belts be ? because 1 of mine is slipping and it sounds horrible.
My top frame is all the way to the top of the tower posts and my belts are all pretty tight (I don't want to risk snapping 1 by tightening it too much).
And second......when in pronterface and I click on X home, all 3 axis go home. Same happens when I click Y or Z, all 3 go home.
I have attached my config file, if anyone can see anything wrong I would appreciate the info.
The belts should be about bass string tight, can't tell the exact pitch I think single axis homing is for cartesians printers, where it makes more sense and poses less danger, not deltas, so don't worry about that.
My belts are no so tight, actually. Definitely not as bass string. I would say they are loose a bit. But they are not slipping at all. If they would slip the layers will be shifted or effector will hit an object, or some other "disasters" will be happen.
As for homing in pronterface, it's normal for deltas. Deltas do not have individual axis homing. Because if only one carriage is homing, the effector could go outside of printing area and crash to a tower or exceed angle limits of rot ends and broke them.
I don't think single axis homing could result in crashing into a tower...
Re: Ebay SINTRON Kossel Mini full kit March 02, 2016 04:30PM |
Registered: 8 years ago Posts: 255 |
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GrAndAG
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hacker
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GrAndAG
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hacker
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Electric ant
....how tight should the belts be ? because 1 of mine is slipping and it sounds horrible.
My top frame is all the way to the top of the tower posts and my belts are all pretty tight (I don't want to risk snapping 1 by tightening it too much).
And second......when in pronterface and I click on X home, all 3 axis go home. Same happens when I click Y or Z, all 3 go home.
I have attached my config file, if anyone can see anything wrong I would appreciate the info.
The belts should be about bass string tight, can't tell the exact pitch I think single axis homing is for cartesians printers, where it makes more sense and poses less danger, not deltas, so don't worry about that.
My belts are no so tight, actually. Definitely not as bass string. I would say they are loose a bit. But they are not slipping at all. If they would slip the layers will be shifted or effector will hit an object, or some other "disasters" will be happen.
As for homing in pronterface, it's normal for deltas. Deltas do not have individual axis homing. Because if only one carriage is homing, the effector could go outside of printing area and crash to a tower or exceed angle limits of rot ends and broke them.
I don't think single axis homing could result in crashing into a tower...
It's easy, actually. See the photo. If I pull right carriage upper, the effector goes exactly into the tower.
[attachment 73749 20160303_000526_crop.jpg]
That's why firmware homes all carriages simultaneously.
Re: Ebay SINTRON Kossel Mini full kit March 03, 2016 04:00AM |
Registered: 8 years ago Posts: 5,232 |
Re: Ebay SINTRON Kossel Mini full kit March 03, 2016 04:02AM |
Registered: 8 years ago Posts: 255 |
Re: Ebay SINTRON Kossel Mini full kit March 03, 2016 05:20AM |
Registered: 8 years ago Posts: 5,232 |
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hacker
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o_lampe
Single axis homing can even crash the nozzle into the bed, if you'd send the command while the effector is down. ( Worst case scenario )
I'm not asking for picture ;-)
Re: Ebay SINTRON Kossel Mini full kit March 03, 2016 05:52AM |
Registered: 8 years ago Posts: 255 |
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o_lampe
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hacker
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o_lampe
Single axis homing can even crash the nozzle into the bed, if you'd send the command while the effector is down. ( Worst case scenario )
I'm not asking for picture ;-)
I've sold my delta, so no picture.
But try out this scenario:
Move the effector to the opposite side of the x-tower ( or any other ) then drop the nozzle a few mm above the bed.
Now try to home only the x-carrier by hand. You will hit the bed immediately.
Re: Ebay SINTRON Kossel Mini full kit March 03, 2016 02:56PM |
Registered: 8 years ago Posts: 39 |
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GrAndAG
Motors are usually whistling a bit when they are powered. It's normal for stepper drives.
When carriages stop moving, the firmware still provides a power to motors for a while to fix the position of the effector. So, motors can continue whistling when they are not moving. You can press "Motors Off" button in Pronterface to actual power them off instantly.
As for strange Y-axis behavior, it could be fault driver. Try to change it to the spare one.
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CrisCG
I think I know what your problem is. Is your slic3r configured for a circular print surface? This happened to me also, the printer was trying to print at x100 y100, that's roughly the center of a Cartesian printer.
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CrisCG
I hope you're not using the supplied metal rods, you'll pull your hair out even more. You'll probably pull some hair out with the calibration also. In theory all seems easy, but i found that in practice it's a nightmare
Re: Ebay SINTRON Kossel Mini full kit March 03, 2016 08:00PM |
Registered: 8 years ago Posts: 916 |
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Electric ant
My bed is spirit level straight but when head is in centre at 0.1mm and I move it all the way to centre left, it is then 0.7mm from bed and 0.5mm all the way to centre right.
So from approx. -X30 to -X85 the head raises up 0.6mm. These metal ends are the cause.
Re: Ebay SINTRON Kossel Mini full kit March 04, 2016 03:17AM |
Registered: 8 years ago Posts: 66 |
Re: Ebay SINTRON Kossel Mini full kit March 04, 2016 03:54AM |
Registered: 8 years ago Posts: 255 |
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CrisCG
I have installed the E3D V6 hotend, with a new efector, new fan mount and carbon rods with traxxas end rods. A big improvement. I will probably have to modify the stock carriages or just make a backplate for them, that will make it less woobly.
But, i'm still having problems with the first layer. Do you use anything on the bed for better first layer adherence? I heat the bed to 60 and the hotend to 210 for PLA. The first layer doesn't stick at all. I know that you can use a lot of things, like hairspray, gluestick, blue tape, kapton tape... but i've seen people do this on non headted build surfaces. Shouldn't PLA printing be a piece of cake with the heated bed? Or that's just what i imagined it would be. What is your experience? Does turning the fan off for the first 1-2 layer help?
Re: Ebay SINTRON Kossel Mini full kit March 04, 2016 08:29AM |
Registered: 8 years ago Posts: 66 |
Re: Ebay SINTRON Kossel Mini full kit March 04, 2016 10:28AM |
Registered: 8 years ago Posts: 255 |
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CrisCG
thank you hacker. will order a 3d lac spary can. but, until then, looks like glue stick and a bit of hair spray on top works best for me.
Re: Ebay SINTRON Kossel Mini full kit March 04, 2016 11:37AM |
Registered: 8 years ago Posts: 916 |
Re: Ebay SINTRON Kossel Mini full kit March 04, 2016 06:59PM |
Registered: 8 years ago Posts: 39 |
Re: Ebay SINTRON Kossel Mini full kit March 05, 2016 05:35AM |
Registered: 8 years ago Posts: 104 |
Re: Ebay SINTRON Kossel Mini full kit March 05, 2016 05:54AM |
Registered: 8 years ago Posts: 255 |
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GrAndAG
No problem with blue tape and bigger prints. The only problem is... the bigger print is - more difficult to tear it off.Quote
Electric ant
I have only used blue tape so far and haven't had any problems yet, I expect problems when I start printing bigger things
Re: Ebay SINTRON Kossel Mini full kit March 05, 2016 08:10AM |
Registered: 8 years ago Posts: 39 |
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nebbian
This is usually caused by an incorrect delta radius. You need to fiddle with the delta_smooth_rod_offset in your firmware until the effector doesn't raise up or dip down at the edges.Quote
Electric Ant
My bed is spirit level straight but when head is in centre at 0.1mm and I move it all the way to centre left, it is then 0.7mm from bed and 0.5mm all the way to centre right.
So from approx. -X30 to -X85 the head raises up 0.6mm. These metal ends are the cause.
Re: Ebay SINTRON Kossel Mini full kit March 05, 2016 08:41AM |
Registered: 8 years ago Posts: 104 |
Hm... I'm printing on the same piece of tape almost 2 months already. More than 50 objects actually. And the tape is still providing good adhesion (I print with PLA). I remove objects by hand or using pliers, trying to not rip the tape.Quote
Electric ant
When I remove my prints, I peel the tape off and the printed item comes off with the tape (most of the time) then just peel the tape off the print.
Theoretically, yes. They both are M4. But I suggest to move to carbon rods, as they are much lighter and stronger. They can be bought separately, at least I purchased rods and ends from different sellers on aliexpress.Quote
Electric ant
On another note, can anyone tell me if the sintron rods will fit in the taxxas 5347 rod ends. My rod ends should be here on Monday.
if they don't fit, I will have to buy a full traxxas kit (carbon rods and more rod ends).
Re: Ebay SINTRON Kossel Mini full kit March 05, 2016 12:21PM |
Registered: 8 years ago Posts: 916 |
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Electric ant
In my case, you are right and wrong. The smooth rod offset has brought the left side down but not the right.
The right side is due to the metal rod ends from the X axis pushing on the Y axis rod ends so the left side of the effector drops a little bit and you can see that the hothead is not stood up straight, but leaning to the left, therefore pushing head tip slightly closer to heatbed.
Hopefully traxxas ends will fix this problem then I can move on to the next one (whatever that may be).
Re: Ebay SINTRON Kossel Mini full kit March 05, 2016 08:10PM |
Registered: 8 years ago Posts: 4 |
Re: Ebay SINTRON Kossel Mini full kit March 06, 2016 01:13AM |
Registered: 8 years ago Posts: 66 |
Re: Ebay SINTRON Kossel Mini full kit March 06, 2016 07:42AM |
Registered: 8 years ago Posts: 255 |
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CrisCG
I'm enjoying the prints in PLA. I just use a mist of hair spray, the bed looks almost like it has nothing on it, because i spray a fine layer on the bed. Prints stick very well to it now, no more problems, not even with big 160mm radius prints. To unstick from the bed after it finished i just let it cool down and it unsticks by itself.
If it needs a clean, vinegar does wonders. I'm really happy with the prints i'm getting now.
Re: Ebay SINTRON Kossel Mini full kit March 06, 2016 08:51AM |
Registered: 8 years ago Posts: 39 |
Re: Ebay SINTRON Kossel Mini full kit March 06, 2016 01:48PM |
Registered: 8 years ago Posts: 104 |
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Electric ant
I got my traxxas rod ends yesterday and have put them on with the sintron rods (just for now) and already there is a vast improvement. The effecter stays level all the way around the bed now, no more binding rod ends.
I have seen some carbon fibre rods that I am interested in, what inside diameter should I get - 3mm or 4mm ? and which will give the best fit (either 3mm screw in or 4mm with epoxy resin) ?.
If you are a programmer - OpenSCAD.Quote
Electric ant
Soon I want to put some LEDs on the frame but I want to print some fixings for them. I want to design my own bracket so does anyone know any good, but not hard to use, design programs for making things.
I am familiar with the basics of autoCAD, so I am not a newbie to design software, just to 3D printers.
Re: Ebay SINTRON Kossel Mini full kit March 06, 2016 03:54PM |
Registered: 10 years ago Posts: 14,672 |
Re: Ebay SINTRON Kossel Mini full kit March 07, 2016 12:06PM |
Registered: 8 years ago Posts: 66 |