You're most welcome.
I really like that Ultibots hobb, it really is the best thing out right now for 1.75mm, I'm sure you will like it. You can crank it down without distorting the filament as much. I'm not saying it will never skip, but it's better than the others I've used by quite a bit. As for ours, we expect to have our store up and running sometime in October and our hobb should be similarly priced to others and ship about the same time. If I remember, I will send you a PM. You will need to either use our extruder (stl's will be available) or design your own as our hobb will not fit in most extruders.
On retraction, I recommend you use as high a speed and acceleration as you can, without the motor skipping. Unfortunately, each controller, motor and even firmware can handle different speeds, so even if I gave you a common number it may or may not work, it's just trial and error.
Here is where I would start: Warning, all of these could cause motor skipping.
#define DEFAULT_MAX_FEEDRATE {800, 800, 800, 800}
#define DEFAULT_MAX_ACCELERATION {3000,3000,3000,3000}
#define DEFAULT_ACCELERATION 800
#define DEFAULT_RETRACT_ACCELERATION 800
Remember, those are just a guess, I tend to run fast and hard, abusing the heck out of my printers. My numbers would be worthless as chances are, you aren't using parts that are even remotely similar. My printers are rolling test beds for the Griffin Pro, so I'm kind of lucky in that I get to play with things not even on the market yet and deal with manufacturers others haven't. It's been fun,tiring exhausting, and quite expensive. I could lie and say I'm doing destructive testing, but honestly, I just like pushing my printers. It's part of the fun for me.
I really like that Ultibots hobb, it really is the best thing out right now for 1.75mm, I'm sure you will like it. You can crank it down without distorting the filament as much. I'm not saying it will never skip, but it's better than the others I've used by quite a bit. As for ours, we expect to have our store up and running sometime in October and our hobb should be similarly priced to others and ship about the same time. If I remember, I will send you a PM. You will need to either use our extruder (stl's will be available) or design your own as our hobb will not fit in most extruders.
On retraction, I recommend you use as high a speed and acceleration as you can, without the motor skipping. Unfortunately, each controller, motor and even firmware can handle different speeds, so even if I gave you a common number it may or may not work, it's just trial and error.
Here is where I would start: Warning, all of these could cause motor skipping.
#define DEFAULT_MAX_FEEDRATE {800, 800, 800, 800}
#define DEFAULT_MAX_ACCELERATION {3000,3000,3000,3000}
#define DEFAULT_ACCELERATION 800
#define DEFAULT_RETRACT_ACCELERATION 800
Remember, those are just a guess, I tend to run fast and hard, abusing the heck out of my printers. My numbers would be worthless as chances are, you aren't using parts that are even remotely similar. My printers are rolling test beds for the Griffin Pro, so I'm kind of lucky in that I get to play with things not even on the market yet and deal with manufacturers others haven't. It's been fun,