That crossed gantry is the way to go. Short belts. Four motors, two per axis. I would think it would out perform a Core XY configuration. This is similar to the configuration used by the Wanhao D6 and other printers, except they screwed it up using only two motors and spinning the shafts that the gantry linear bearings ride on. This looks amazing. Nice job.
It is performing, but.. is it better than CoreXY? They are very close, but I would say the Crossed gantry is better just because belt tension does not affect skew on crossed gantry. Both can go the same speed and print just as fast from what I can tell. The issue seems to be cooling related to speed.
@@michalaugustin8122 Hell no! Not because vibration, but hot end flow. It's on a table in the garage that is not firmly planted on the floor. Typical print speed is 200-300mms @ 15K. Speed prints for fun at 500mms @ 50K acceleration.
@@MrRocksalt check the "Vez3d" here on youtube, he is reaching 2000mm/s with corexy...this would be interesting battle of 2 different design approaches
seems like the real advantage might shine if you swap the gantry out from belts to ball screws? I have no experience but notice thats what happens on upper end CNC mills
Weight is the biggest factor and next the size of the components. Screw quality is also of concern as screws are expensive, mainly the ballnuts to drive the axis. $$$
@MrRocksalt you also need to spin the motors super fast to achieve the same speed. With pulleys, 1 rotation moves it a distance equal to the circumference of the pulley, whereas on a screw, 1 rotation moves it the distance of the thread pitch
Ball screws are for torqued/resistance moves like carving away metal... there is very little resistance when moving a 3d printer toolhead so a belt drive is more practical and faster. Thicker belts can reduce stretching.
@@MrRocksalt at those speeds, flow increases pretty quickly. At 0.3 layer height, your hotend will definitely be limiting your performance, I would suggest a dragon UHF with cht.
That crossed gantry is the way to go. Short belts. Four motors, two per axis. I would think it would out perform a Core XY configuration. This is similar to the configuration used by the Wanhao D6 and other printers, except they screwed it up using only two motors and spinning the shafts that the gantry linear bearings ride on. This looks amazing. Nice job.
It is performing, but.. is it better than CoreXY? They are very close, but I would say the Crossed gantry is better just because belt tension does not affect skew on crossed gantry. Both can go the same speed and print just as fast from what I can tell. The issue seems to be cooling related to speed.
@@MrRocksalt can you print 2000mm/s? it looks like it would vibrate a lot
@@michalaugustin8122 Hell no! Not because vibration, but hot end flow. It's on a table in the garage that is not firmly planted on the floor. Typical print speed is 200-300mms @ 15K. Speed prints for fun at 500mms @ 50K acceleration.
@@MrRocksalt i saw people solve the hot end flow. I am just curious if it can print fast enough based on frame construction.
@@MrRocksalt check the "Vez3d" here on youtube, he is reaching 2000mm/s with corexy...this would be interesting battle of 2 different design approaches
Awesome printer design! I'd imagine with cnc aluminum gantry parts and stepper / idler mounts it would perform even better!
I can't be the only one to hear a beat from the motor noises
This one has some rythem! ruclips.net/video/X535DqaVJXU/видео.html
@@MrRocksalt Fixing the motors is surely much better. The heavier components you fix the better you get.
Sounds like Sandstorm to me
What is.... on the top of the printhead??
I bet the print lines are soooo clean on this printer
What are your thoughts? Faster? More stable?
Love it!
Looks good! but I hope you get rid of the green thing as it will mess with you prints.
Are you using dual motor connectors?
seems like the real advantage might shine if you swap the gantry out from belts to ball screws? I have no experience but notice thats what happens on upper end CNC mills
Weight is the biggest factor and next the size of the components. Screw quality is also of concern as screws are expensive, mainly the ballnuts to drive the axis. $$$
@MrRocksalt you also need to spin the motors super fast to achieve the same speed. With pulleys, 1 rotation moves it a distance equal to the circumference of the pulley, whereas on a screw, 1 rotation moves it the distance of the thread pitch
IMHO that's only gonna create more problems
Ball screws are for torqued/resistance moves like carving away metal... there is very little resistance when moving a 3d printer toolhead so a belt drive is more practical and faster. Thicker belts can reduce stretching.
I'm assuming Klipper how did you set up the kinematics in FW?
It's Cartesian. Same way, but with 2 motors for X and 2 for Y. So separate drivers for each motor (xX, X1, Y, Y1).
If that's a mosquito, that's a pretty questionable hotend choice, given the fast speeds of this machine.
I have no problem with .4 CHT nozzle @ 32mms3 and .6 at 45+ with ABS. Seems enough to me :)
@@MrRocksalt at those speeds, flow increases pretty quickly. At 0.3 layer height, your hotend will definitely be limiting your performance, I would suggest a dragon UHF with cht.
@@morbus5726 Yes, you are right. With .6nozzle I am limited to about 250mms with .4 layer height. Still plenty of speed for me!
Is this playing darude sandstorm?