Hello everyone,
about two years ago I bought the original Flsun cube (this one)
But shortly after that I learned about the concept of CoreXY and fell in love with that. I did not want to buy a completely new printer so I wanted to covert the cube to CoreXY.
I chose the design of jand1122 (this one) and modified it a bit to fit dual extruders + part cooling, endstops and so on.
I really like the design because of
- printed parts (lightweight)
- linear rods (cheap and easy)
- horizontally arranged x axis-rods with the hotend inbetween (compact + force distribution)
- scalability and so on...
I printed all the parts and assembled them (see picture[attachment 110826 374347.jpg]). then I had some problems with circles not being round but flat on the spots parallel two the x axis which I (hopefully) have resolved by reprinting the parts for better tolerances in less flexible pla and using linear bearrings instead of igus bushings to reduce friction (moving the hotend manually in y was harder than moving it in x).
I always try to optimize my machines as far as possible and always try to make it "the great alrounder".
And I am currently waiting for a few new parts so I can not test the machine right now but I want your opinion/ knowledge on this:
I am currently still using the mks gen l board which honestly fits all my needs right now.
The board is 8 bit and running Marlin 1.1.9
The motors are turning some 20 teeth gt2 pulleys which makes 80steps/mm
combined with 1.8° Motors and 1/16 microstepping (currently A4988 but I want to go for TMC2208 in the future)
I am not that kind of person which wants top speeds of 200mm/s and above.
I know that a 2020 cubic frame is not the sturdiest but it will do its job.
I also like quality over speed and since I do not run the machine 24/7 most of the time it is idle anyway.
So preferred *print* speeds are 60-80mm/s (applies for circles too) which also is a good compromise for temperature/part cooling/overhang capability IMO.
If my calculations are correct this results in a maximum step rate of 16kHz
I am also using the reprap lcd smart controller but maybe I will upgrade that to the LCD 12864 Full Graphic Smart Controller.
So the overall question is:
1.Will this board be capable of these print speeds? (Will upgrading the LCD have an impact on this)
2. Are there any things that I am overseeing or things which you would recommend me to do?
Thanks in advance for constructive contributions.
EDIT: heres a schematic of the kinematics without belts [attachment 110827 Assemblywithoutbeltsandbed.PNG]
about two years ago I bought the original Flsun cube (this one)
But shortly after that I learned about the concept of CoreXY and fell in love with that. I did not want to buy a completely new printer so I wanted to covert the cube to CoreXY.
I chose the design of jand1122 (this one) and modified it a bit to fit dual extruders + part cooling, endstops and so on.
I really like the design because of
- printed parts (lightweight)
- linear rods (cheap and easy)
- horizontally arranged x axis-rods with the hotend inbetween (compact + force distribution)
- scalability and so on...
I printed all the parts and assembled them (see picture[attachment 110826 374347.jpg]). then I had some problems with circles not being round but flat on the spots parallel two the x axis which I (hopefully) have resolved by reprinting the parts for better tolerances in less flexible pla and using linear bearrings instead of igus bushings to reduce friction (moving the hotend manually in y was harder than moving it in x).
I always try to optimize my machines as far as possible and always try to make it "the great alrounder".
And I am currently waiting for a few new parts so I can not test the machine right now but I want your opinion/ knowledge on this:
I am currently still using the mks gen l board which honestly fits all my needs right now.
The board is 8 bit and running Marlin 1.1.9
The motors are turning some 20 teeth gt2 pulleys which makes 80steps/mm
combined with 1.8° Motors and 1/16 microstepping (currently A4988 but I want to go for TMC2208 in the future)
I am not that kind of person which wants top speeds of 200mm/s and above.
I know that a 2020 cubic frame is not the sturdiest but it will do its job.
I also like quality over speed and since I do not run the machine 24/7 most of the time it is idle anyway.
So preferred *print* speeds are 60-80mm/s (applies for circles too) which also is a good compromise for temperature/part cooling/overhang capability IMO.
If my calculations are correct this results in a maximum step rate of 16kHz
I am also using the reprap lcd smart controller but maybe I will upgrade that to the LCD 12864 Full Graphic Smart Controller.
So the overall question is:
1.Will this board be capable of these print speeds? (Will upgrading the LCD have an impact on this)
2. Are there any things that I am overseeing or things which you would recommend me to do?
Thanks in advance for constructive contributions.
EDIT: heres a schematic of the kinematics without belts [attachment 110827 Assemblywithoutbeltsandbed.PNG]