Quoteetfrench Your diagram should be a Reuleaux Triangle to be more accurate. I'd post an image, but Photobucket is holding my photos for ransom Basically, draw an arc from each arm on the effector when it's at 90 degrees (in front of the tower). The radius of the arc is the position of that arm on the effector when it's at the maximum extension (20 degrees). Repeat for the other arm. Locatby s3rkan - Delta Machines
OK. Based on the rules mentioned above and also to my old geometry knowledge, here is my calculation: If we accept the 20-60 is not a theory, it is a rule so I will stick with it after now. I have manually assembled the rod ends to the ball links and measured a maximum angle of around 30 degree between them. So we can move the arm to a maximum of 30 degree. This is illustrated with blue lines inby s3rkan - Delta Machines
Hi everyone. I am building this machine: and I want to find an effector suitable for this design which have nozzle cooling fan, e3d cooling fan and with an auto probe function. There are plenty of designs on the internet but I couldn't find any information about a point about the arms. Should the arm widths on the carriage side and on the effector side be the same size? On the original design, tby s3rkan - Delta Machines
Quoteo_lampe QuoteI tried fysetc and there is no spreadcycle mode for it as the seller declared to me I'm using fysetc too and was able to change the modes by soldering bridges on the underside. ( see thread about TMC2100 in general forum ) Of course, I don't know they are in spreadcycle now, but they behave different. Did you solder the tiny CFG1 pad for spreadcycle?by s3rkan - Stepper Motors, Servo Motors, DC Motors
There are 3 brands of it that I could find: Original watterott, fysetc brand and mks brand. They all come stealthChop mode which is not suitable for 3d printers because of their low torque. Spreadcycle mode is advised for 3d printers. I tried fysetc and there is no spreadcycle mode for it as the seller declared to me. Mks have that option: I didn't try it yet but now I am using the original one:by s3rkan - Stepper Motors, Servo Motors, DC Motors
QuoteDjDemonD The vref at 0.4v gives 0.8A so you're running those motors at/near their maximum current handling, they will always be noisy when near that level. The document above has values of vref against current. You should always aim to run motors at around 75% of their max current to prevent excess noise, and heating of the motors in use, which can soften/melt printed motor brackets. For yoby s3rkan - Stepper Motors, Servo Motors, DC Motors
QuoteDjDemonD What motor current/vref are you running, what motor size? How much resonance is there in your frame?h My motors have 0.85a max current. So I have set the Vref to 0.4V. But I don't have any knowledge about resonance, how can I measure that?by s3rkan - Stepper Motors, Servo Motors, DC Motors
I have just received 4 of these drivers from Aliexpress. I have tried 1/16, 1/32 and 1/64 for my corexy printer's X and Y axis but all of them were very loud as if there is a huge machine in my room. Is there anything I missed?by s3rkan - Stepper Motors, Servo Motors, DC Motors
I have a couple of questions to be cleared about wiring. First of all, as I understood from @mickeypop 's sayings in here: , S pin of the RAMPS is "Signal in" pin and it needs to take in 5V voltage. PNP and NPN proximity sensors are different basically as the Black wire could be used as "sinking" or "sourcing" the current as mentioned here: If the S pin is "sinking" in RAMPS how can we use thby s3rkan - Printing
Hi everyone. I have been searching for a solution to my problem for a couple of months and never faced a topic for it. So here is my problem; In the middle of the printing process (stopping time changes everytime) my h-bot - marlin based 3d printer stops printing, takes out the filament all for 10-20 secs and then takes in it again for 10-20secs and continues to printing. But in this condition, pby s3rkan - Printing
Quotewaitaki I suppose you could add a M106 S255 to the G-code just before the bridging movement - that's if you can find it! Or.... what I do is, monitor the printing job until it's near the bridging point then manually send the above code. I have a fan on and fan off command button already in Pronterface. How can we know in which code the bridging begins?by s3rkan - General