- January 11, 2017 at 11:50 am #24707
Glenn: Those pins used by the display are also used by ESTLCAM, so unless the firmware is rewritten to use different pins and support the display, no.
Matt: I think you will run into a pulse rate limit trying to use 1/32 for the Z and getting any reasonable max feed rate. Almost all steppers have 200 full steps/revolution. At 1/4 resolution (1.25mm/revolution/800 steps = 0.0016mm/microstep). Even at 1/1 it is 1.25/200=.006mm/microstep resolution (more than enough for most work).
X&Y are different as the belt and pulley gives 16*2mm=32mm/revolution. At 1/1 this gives 0.16mm/step which is pretty coarse. Most folks seem to run at 1/8 which gives 32/1600=.02mm/microstep, more than adequate.
My rule is to use the minimum number of microsteps to give the desired resolution and smooth quiet operation.
As for accelleration and Inertia, Christian has a good video on how to experimentally determine the optimal numbers. I found Vicious’ to be a good starting point.January 11, 2017 at 12:40 pm #24708
Thanks for your answer i understand better how it works 😉
Could you eventually tell me how much an 8mm threaded rod travel per revolution ?January 11, 2017 at 6:36 pm #24753
Matt: As I noted above, the most common 8mm threaded rod has a pitch of 1.25 mm. As it is a single start thread, the lead is also 1.25mm which is the distance it travels per revolution. A fine metric thread has a pitch and lead of 1.0mm.January 13, 2017 at 7:45 am #24898
Thank you @Bill BrananJanuary 14, 2017 at 2:40 am #24943
How do I configure the origin of the axes in Estlcam?January 14, 2017 at 7:13 am #24951
The zero button on the bottom of the list on the left. It lets you set your zero point anywhere you want.January 15, 2017 at 1:23 am #24982
I added a new video showing a little trick to zero workpieces:
ChristianJanuary 15, 2017 at 2:31 am #24983
Very nice work!January 18, 2017 at 11:38 am #25249
I tired to set up ESTLCAM according to your basic set up on the first page but i am not getting good results.
Z is working correctly but X and Y motors are grinding, they make strange noise and stop moving.
I tried to put them in 1/8 step like christian is recommanding and putting the acceleration to 32mm but it did not resolve the problem.
The only way i found to get things working correctly is to reduce the feedrate to 90mm/s.
Can you tell me how you manage to get 150mm/s on the X and Y axis please ?
January 18, 2017 at 11:40 am #25251
- This reply was modified 21 hours, 27 minutes ago by Matt.
I use Marlin. I am not the one to ask about this.January 18, 2017 at 11:43 am #25252
Sounds like not enough power in the motor. How much current are you running through your steppers? What is the voltage of the supply and the rated motor voltage?January 18, 2017 at 11:46 am #25253
It is most likely a software setting (wrong math), unless you have never moved the machine before. in that case verify with marlin first.January 19, 2017 at 1:49 am #25375
I asked you because you put settings for ESTLCAM on the first page so i assumed you have tested it for a period of time and i was wondering how you were able to sustain 150mm/s….
It’s not a pronlem anymore, like i said i reduced it to 90mm/s and everything is woking this way.
I alreday moved the machine with repetier before switching to estlcam and everything was working good but again it means nothing because following your guide the contols are limited to 3600mm/min wich equals 60mm/S. So at 90mm/S i am above your recommending settings for repetier host.
So that’s why i was wondering how you could get ESTLCAM work at 150mm/s ???
I am runing Nema 17 2A with DRV8825 steppers at 0.71V and a power supply of 12 volts and 20 amps. A really standard and conservative setup.January 19, 2017 at 8:56 am #25399
Matt: I’m also using 12V power with NEMA17 motors with a resistance of 12.5ohms but only running about 0.5A through each one.I found they heat up too much with 1A. I determined max feedrate by increasing until motor stutter then backing off about 25%. Same settings for Repetier. (I use the same setup for my 3D printer with different settings)
X,Y steps/revolution: 1600
Z steps/revolution: 800
max feed rate x,y: 6000mm/m = 100mm/s
max feed rate z: 300mm/m
Acceleration Distance: 2mm
Start Feed Rate: 60mm/m
Can you get a higher feedrate with Repetier than ESTLCAM? I couldn’t.
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