Why are delta bots so finicky?How are delta movements calculated?Delta 3D printer extruder?Scaling/size...
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Why are delta bots so finicky?
How are delta movements calculated?Delta 3D printer extruder?Scaling/size issues in delta printersDelta printer not responding to changes in DELTA_RADIUSDelta printer printing incorrect dimensions in X and Y directions. Z dimensions are correctDelta printer distortionBest 32 bit electronics for delta?Delta printer misalignment at first few layersDelta Printer: Slighty incorrect print alignment on the build plate0.9° motors for Delta printers?
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I've had my anycubic kossel for a good while now, and whenever I print something, it seems like it falls out of calibration very quickly. The biggest example is that the prints tend to scale up as the print progresses, or maybe the print starts to drift, and comes out slanted. This seems to never happen in any similarly priced XYZ printers. Why is this? Do XYZ printers just have an inherent advantage over deltas? Perhaps Deltas have some precision loss?
delta
asked 2 days ago
tuskiomituskiomi
405 bronze badges
$endgroup$
add a comment |
$begingroup$
I've had my anycubic kossel for a good while now, and whenever I print something, it seems like it falls out of calibration very quickly. The biggest example is that the prints tend to scale up as the print progresses, or maybe the print starts to drift, and comes out slanted. This seems to never happen in any similarly priced XYZ printers. Why is this? Do XYZ printers just have an inherent advantage over deltas? Perhaps Deltas have some precision loss?
delta
asked 2 days ago
tuskiomituskiomi
405 bronze badges
$endgroup$
add a comment |
$begingroup$
I've had my anycubic kossel for a good while now, and whenever I print something, it seems like it falls out of calibration very quickly. The biggest example is that the prints tend to scale up as the print progresses, or maybe the print starts to drift, and comes out slanted. This seems to never happen in any similarly priced XYZ printers. Why is this? Do XYZ printers just have an inherent advantage over deltas? Perhaps Deltas have some precision loss?
delta
asked 2 days ago
tuskiomituskiomi
405 bronze badges
$endgroup$
I've had my anycubic kossel for a good while now, and whenever I print something, it seems like it falls out of calibration very quickly. The biggest example is that the prints tend to scale up as the print progresses, or maybe the print starts to drift, and comes out slanted. This seems to never happen in any similarly priced XYZ printers. Why is this? Do XYZ printers just have an inherent advantage over deltas? Perhaps Deltas have some precision loss?
delta
delta
asked 2 days ago
tuskiomituskiomi
405 bronze badges
asked 2 days ago
tuskiomituskiomi
405 bronze badges
asked 2 days ago
tuskiomituskiomi
405 bronze badges
asked 2 days ago
tuskiomituskiomi
405 bronze badges
asked 2 days ago
tuskiomituskiomi
405 bronze badges
405 bronze badges
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
$begingroup$
user77232's points are valid but I have done several things to mitigate these issues on my Anycubic Deltas.
First, both of my deltas have linear slide bearings. If your's has the bearing trucks that run in the extrusion slots this will lead to less precise operation and also is a source of wear over time.
Second, be sure that the end stop micro switches are positioned precisely and that their fasteners are tight. You may also want to use a mild strength Loctite on their fasteners. When operated at high extrusion rates all components are subject to significant vibration.
Third, I found that the universal joints are also a significant source of play. I remedied this to some degree by placing rubber bands across the arms at both ends so that the play was minimized. The rubber bands should be wrapped fairly tightly to perform this function.
Forth, I try to tune the belt tension so that all of the belts have the same note when plucked. There are smart phone apps that will help do this. I believe that one that I use is from Gates, a premium manufacturer of drive belts. Also, over time belts stretch so you will need to retension them periodically.
Fifth, run through the firmware calibration process regularly for both positional accuracy and for filament extrusion and retraction variables.
I don't use my deltas much any more since purchasing a popular XYZ type printer but it cost me three times what they did and it still has issues from time to time.
answered 2 days ago
voxelmanvoxelman
563 bronze badges
New contributor
voxelman is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
$begingroup$
I have the rails that look like this
$endgroup$
– tuskiomi
2 days ago
$begingroup$
That is the type, linear guides or slides, that mine have. These are the best kind to have. But as with all things quality varies. If they slide smoothly, are tight i.e. they have minimum off axis movement and are solidly affixed to the frame then these are not a source of your error.
$endgroup$
– voxelman
2 days ago
add a comment |
$begingroup$
(The XYZ Printers are called Cartesian Printers)
Delta printers are harder to get right, because they require precision parts. The arms have to be EXACTLY the same length, the frame must be square, the universal joints must have no slop. You should check to see if any of the universal joints need replacing, and that the length of the arms are equal.
Deltas however are some of the fastest robotic platforms due to the low mass of the end effector.
answered 2 days ago
user77232user77232
1,0641 silver badge10 bronze badges
$endgroup$
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
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active
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active
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votes
$begingroup$
user77232's points are valid but I have done several things to mitigate these issues on my Anycubic Deltas.
First, both of my deltas have linear slide bearings. If your's has the bearing trucks that run in the extrusion slots this will lead to less precise operation and also is a source of wear over time.
Second, be sure that the end stop micro switches are positioned precisely and that their fasteners are tight. You may also want to use a mild strength Loctite on their fasteners. When operated at high extrusion rates all components are subject to significant vibration.
Third, I found that the universal joints are also a significant source of play. I remedied this to some degree by placing rubber bands across the arms at both ends so that the play was minimized. The rubber bands should be wrapped fairly tightly to perform this function.
Forth, I try to tune the belt tension so that all of the belts have the same note when plucked. There are smart phone apps that will help do this. I believe that one that I use is from Gates, a premium manufacturer of drive belts. Also, over time belts stretch so you will need to retension them periodically.
Fifth, run through the firmware calibration process regularly for both positional accuracy and for filament extrusion and retraction variables.
I don't use my deltas much any more since purchasing a popular XYZ type printer but it cost me three times what they did and it still has issues from time to time.
answered 2 days ago
voxelmanvoxelman
563 bronze badges
New contributor
voxelman is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
$begingroup$
I have the rails that look like this
$endgroup$
– tuskiomi
2 days ago
$begingroup$
That is the type, linear guides or slides, that mine have. These are the best kind to have. But as with all things quality varies. If they slide smoothly, are tight i.e. they have minimum off axis movement and are solidly affixed to the frame then these are not a source of your error.
$endgroup$
– voxelman
2 days ago
add a comment |
$begingroup$
user77232's points are valid but I have done several things to mitigate these issues on my Anycubic Deltas.
First, both of my deltas have linear slide bearings. If your's has the bearing trucks that run in the extrusion slots this will lead to less precise operation and also is a source of wear over time.
Second, be sure that the end stop micro switches are positioned precisely and that their fasteners are tight. You may also want to use a mild strength Loctite on their fasteners. When operated at high extrusion rates all components are subject to significant vibration.
Third, I found that the universal joints are also a significant source of play. I remedied this to some degree by placing rubber bands across the arms at both ends so that the play was minimized. The rubber bands should be wrapped fairly tightly to perform this function.
Forth, I try to tune the belt tension so that all of the belts have the same note when plucked. There are smart phone apps that will help do this. I believe that one that I use is from Gates, a premium manufacturer of drive belts. Also, over time belts stretch so you will need to retension them periodically.
Fifth, run through the firmware calibration process regularly for both positional accuracy and for filament extrusion and retraction variables.
I don't use my deltas much any more since purchasing a popular XYZ type printer but it cost me three times what they did and it still has issues from time to time.
answered 2 days ago
voxelmanvoxelman
563 bronze badges
New contributor
voxelman is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
$begingroup$
I have the rails that look like this
$endgroup$
– tuskiomi
2 days ago
$begingroup$
That is the type, linear guides or slides, that mine have. These are the best kind to have. But as with all things quality varies. If they slide smoothly, are tight i.e. they have minimum off axis movement and are solidly affixed to the frame then these are not a source of your error.
$endgroup$
– voxelman
2 days ago
add a comment |
$begingroup$
user77232's points are valid but I have done several things to mitigate these issues on my Anycubic Deltas.
First, both of my deltas have linear slide bearings. If your's has the bearing trucks that run in the extrusion slots this will lead to less precise operation and also is a source of wear over time.
Second, be sure that the end stop micro switches are positioned precisely and that their fasteners are tight. You may also want to use a mild strength Loctite on their fasteners. When operated at high extrusion rates all components are subject to significant vibration.
Third, I found that the universal joints are also a significant source of play. I remedied this to some degree by placing rubber bands across the arms at both ends so that the play was minimized. The rubber bands should be wrapped fairly tightly to perform this function.
Forth, I try to tune the belt tension so that all of the belts have the same note when plucked. There are smart phone apps that will help do this. I believe that one that I use is from Gates, a premium manufacturer of drive belts. Also, over time belts stretch so you will need to retension them periodically.
Fifth, run through the firmware calibration process regularly for both positional accuracy and for filament extrusion and retraction variables.
I don't use my deltas much any more since purchasing a popular XYZ type printer but it cost me three times what they did and it still has issues from time to time.
answered 2 days ago
voxelmanvoxelman
563 bronze badges
New contributor
voxelman is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
user77232's points are valid but I have done several things to mitigate these issues on my Anycubic Deltas.
First, both of my deltas have linear slide bearings. If your's has the bearing trucks that run in the extrusion slots this will lead to less precise operation and also is a source of wear over time.
Second, be sure that the end stop micro switches are positioned precisely and that their fasteners are tight. You may also want to use a mild strength Loctite on their fasteners. When operated at high extrusion rates all components are subject to significant vibration.
Third, I found that the universal joints are also a significant source of play. I remedied this to some degree by placing rubber bands across the arms at both ends so that the play was minimized. The rubber bands should be wrapped fairly tightly to perform this function.
Forth, I try to tune the belt tension so that all of the belts have the same note when plucked. There are smart phone apps that will help do this. I believe that one that I use is from Gates, a premium manufacturer of drive belts. Also, over time belts stretch so you will need to retension them periodically.
Fifth, run through the firmware calibration process regularly for both positional accuracy and for filament extrusion and retraction variables.
I don't use my deltas much any more since purchasing a popular XYZ type printer but it cost me three times what they did and it still has issues from time to time.
answered 2 days ago
voxelmanvoxelman
563 bronze badges
New contributor
voxelman is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 2 days ago
voxelmanvoxelman
563 bronze badges
New contributor
voxelman is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 2 days ago
voxelmanvoxelman
563 bronze badges
answered 2 days ago
voxelmanvoxelman
563 bronze badges
563 bronze badges
New contributor
voxelman is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
voxelman is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$begingroup$
I have the rails that look like this
$endgroup$
– tuskiomi
2 days ago
$begingroup$
That is the type, linear guides or slides, that mine have. These are the best kind to have. But as with all things quality varies. If they slide smoothly, are tight i.e. they have minimum off axis movement and are solidly affixed to the frame then these are not a source of your error.
$endgroup$
– voxelman
2 days ago
add a comment |
$begingroup$
I have the rails that look like this
$endgroup$
– tuskiomi
2 days ago
$begingroup$
That is the type, linear guides or slides, that mine have. These are the best kind to have. But as with all things quality varies. If they slide smoothly, are tight i.e. they have minimum off axis movement and are solidly affixed to the frame then these are not a source of your error.
$endgroup$
– voxelman
2 days ago
$begingroup$
I have the rails that look like this
$endgroup$
– tuskiomi
2 days ago
$begingroup$
I have the rails that look like this
$endgroup$
– tuskiomi
2 days ago
$begingroup$
That is the type, linear guides or slides, that mine have. These are the best kind to have. But as with all things quality varies. If they slide smoothly, are tight i.e. they have minimum off axis movement and are solidly affixed to the frame then these are not a source of your error.
$endgroup$
– voxelman
2 days ago
$begingroup$
That is the type, linear guides or slides, that mine have. These are the best kind to have. But as with all things quality varies. If they slide smoothly, are tight i.e. they have minimum off axis movement and are solidly affixed to the frame then these are not a source of your error.
$endgroup$
– voxelman
2 days ago
add a comment |
$begingroup$
(The XYZ Printers are called Cartesian Printers)
Delta printers are harder to get right, because they require precision parts. The arms have to be EXACTLY the same length, the frame must be square, the universal joints must have no slop. You should check to see if any of the universal joints need replacing, and that the length of the arms are equal.
Deltas however are some of the fastest robotic platforms due to the low mass of the end effector.
answered 2 days ago
user77232user77232
1,0641 silver badge10 bronze badges
$endgroup$
add a comment |
$begingroup$
(The XYZ Printers are called Cartesian Printers)
Delta printers are harder to get right, because they require precision parts. The arms have to be EXACTLY the same length, the frame must be square, the universal joints must have no slop. You should check to see if any of the universal joints need replacing, and that the length of the arms are equal.
Deltas however are some of the fastest robotic platforms due to the low mass of the end effector.
answered 2 days ago
user77232user77232
1,0641 silver badge10 bronze badges
$endgroup$
add a comment |
$begingroup$
(The XYZ Printers are called Cartesian Printers)
Delta printers are harder to get right, because they require precision parts. The arms have to be EXACTLY the same length, the frame must be square, the universal joints must have no slop. You should check to see if any of the universal joints need replacing, and that the length of the arms are equal.
Deltas however are some of the fastest robotic platforms due to the low mass of the end effector.
answered 2 days ago
user77232user77232
1,0641 silver badge10 bronze badges
$endgroup$
(The XYZ Printers are called Cartesian Printers)
Delta printers are harder to get right, because they require precision parts. The arms have to be EXACTLY the same length, the frame must be square, the universal joints must have no slop. You should check to see if any of the universal joints need replacing, and that the length of the arms are equal.
Deltas however are some of the fastest robotic platforms due to the low mass of the end effector.
answered 2 days ago
user77232user77232
1,0641 silver badge10 bronze badges
answered 2 days ago
user77232user77232
1,0641 silver badge10 bronze badges
answered 2 days ago
user77232user77232
1,0641 silver badge10 bronze badges
answered 2 days ago
user77232user77232
1,0641 silver badge10 bronze badges
1,0641 silver badge10 bronze badges
add a comment |
add a comment |
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