QuoteUscstaylor How can I change the travel speed downward towards the bed when moving the z axis its super slow... Change the mm/min Z speed in the pronterface panel. By default it's 100 mm/min, which is super slow. Set to 1000 or something.by nebbian - Delta Machines
QuoteUscstaylor This is copied right form my firmware settings....//#define Z_SAFE_HOMING DELTA_HOME_TO_SAFE_ZONE is not the same as Z_SAFE_HOMINGby nebbian - Delta Machines
btw it's really great that you're using turnbuckles to square up the towers. Most people haven't cottoned on to this trick. However you need two more, as it is, if you tighten those up quite a bit, you'll make the towers lean towards the front of the printer. It's best to use 4 turnbuckles in total, crossing them over to make an X on the X/Z and Y/Z face. Then you can make your towers rock soby nebbian - Delta Machines
Can you post the log of what Pronterface spits out when you connect to the printer please?by nebbian - Delta Machines
Are you using two slashes to denote a comment? It's uncommented in the file you posted above.by nebbian - Delta Machines
btw if you don't want it to move down a bit after homing, comment out this line: #define DELTA_HOME_TO_SAFE_ZONEby nebbian - Delta Machines
Try increasing your Z max height. It's currently set to 250, increase this by the distance it's stopping short by. #define MANUAL_Z_HOME_POS 250 // Distance between the nozzle to printbed after homingby nebbian - Delta Machines
Hi Frank, It's aluminium. I've done my time with plastic effectors, moved to metal, and I'm not going back. There are loads on ebay, but the one I've got is this one:by nebbian - Delta Machines
It's possible that the newer version uses different eeprom mappings to the old version. Try sending these commands: M502; // Read values from firmware M500; // Save those values to eeprom If that fails, try swapping the stepper drivers from the X and Y axes.by nebbian - Delta Machines
By "manually triggering the endstops", I meant to push the switches with your finger, while sending M119. Your issue sounds like your X stepper driver is blown, the current is set way too low, or the connector to the X stepper motor is loose. Try reseating the connector for the X motor, and if that doesn't solve it, try swapping the X and Y stepper motor drivers (with the power off, obviously)by nebbian - Delta Machines
Good stuff. Glad to helpby nebbian - Delta Machines
OK you need: #define ENDSTOP_PULLUP_Z_MIN true Now do M119 both with, and without, the Z height switch triggered (using a finger or something). The response from the pritner should reflect whether or not the switch is triggered. Good luck.by nebbian - Delta Machines
WIth it powered up, send M119 and see what the status of your endstops are. Then manually trigger each of the endstops, and send another M119 to ensure that the endstops are triggering correctly. If the endstops are working correctly, put the carriages in the middle of their travel, and send a home command (one hand on the power switch). Which direction do the carriages move?by nebbian - Delta Machines
Post your configuration.h and I'll have a look.by nebbian - Delta Machines
Which filament are you focussing on?by nebbian - General
Complete configuration file attached. Hopefully it might isolate any issues. I suggest doing a diff (winmerge, FileMerge etc) on this, vs yours, to see the changes.by nebbian - Delta Machines
Here's my setup using the latest Repetier (0.92.9) Maybe it will help. I've got the z probe pins plugged into the Z Min endstop pins. Ignore the Start and Finished scripts, these are for servo deployment of the probe. Edit: you'll need to set your pullup on, if using a normally open switch (I use an optical endstop, so don't need the pullup) // #################### Z-Probing #############by nebbian - Delta Machines
Hmmm, those numbers look OK to me. Perhaps it might be that the code can't handle negative endstop corrections? Try adding 3 to all endstop correction values and see if the calculator works. Either way, email the auther (DC42) for help.by nebbian - Delta Machines
Quoteo_lampe Unfortunately the smart current config pni is also used as "enable". You'd need a tristate driver to switch in that mode ( floating= smart current ). Also the datasheet mentioned we had to "wake up" the driver after a longer period of idle. Doesn't sound too promising for me.... My TMCs had a weightlifting session today. My CoreXY bed weights ~1.5-2kg and is moved by two ballscrewsby nebbian - General
I can see from your picture that you have a dial indicator on the effector. This will work fine for the calculator. Do you have a picture of your effector with the probe mounted? Here's how I did it:by nebbian - Delta Machines
Which firmware are you running? If using RepRapFirmware then ignore the rest of this post, as it's for the great unwashed (like me) who are still using 8 bit hardware. Reprapfirmware has this calibration built in. If not using RepRapFirmware, then: Firstly, go here: Input all the numbers from your firmware, choose 6 factor calibration, 10 points, and suggest probe points. Then move your eby nebbian - Delta Machines
Just an update on this, I had to bump up the voltage to 1.3V due to layer shifting. Took me a while to figure out. The first symptom was stripped filament in the extruder due to not being able to extrude (nozzle too close to previous layer, due to layer shifting on a delta). That had me chasing the wrong wild goose for a while. Side note, if you try using DC42's calibration wizard, with a higby nebbian - General
Good luck with the tuning. 20 tooth pulleys will double the torque available to your carriages, which should help. 0.9 degree motors aren't all that expensive: Also, with such long belts you might be running into issues with belt stretch. Perhaps try some steel cored belts? They have issues with smaller diameter pulleys (the steel core breaks), but the stretch should reduced a lot.by nebbian - Delta Machines
Are the belts nice and tight? Also, 40 steps/mm seems awfully low, you'll get visible artefacts in your prints from such a low ratio. I assume you're using 1.8 degree steppers? 0.9 degree steppers might be more appropriate. Are you getting any binding? How much stiction is in those magnetic ball ends? Have you greased them with a light grease such as lithium grease? I'd guess that the isby nebbian - Delta Machines
Just for reference, the numbers above are for 1.75mm filament. I had one of the direct drive systems with a 40mm NEMA17, but I found that the force just wasn't quite enough to print fast. I used to be a believer in direct drive extruders, but now I think that some form of gearing is a good thing.by nebbian - General
btw I've been looking for 6 months to get the correct sized stepper and gear ratio, to put into an MK8 style extruder assembly. I ended up wanting about a 3:1 - 5:1 planetary gear ratio, and a thinner style NEMA 17 motor. I was about to buy one of those , when I came across the Titan -- and instantly bought one. I'm very happy with it. Their 3:1 gear ratio is perfect, the gears are a lot lighby nebbian - General
I use a figure of about 2 kg force as the "must have", and above 4 kg as the "never actually need that much force". So you can juggle motor torque, gear ratio, and total weight to get a good compromise. Note that motors are usually specced at currents that would end up too hot for my taste, so I derate the specced torque by 50% to get the extruder motor to run cool, and still have enough push.by nebbian - General
It did take a bit of tuning for me, but the toughness of the final parts was worth it. Stringing is an issue, but when you get it dialled in (fast travel moves mostly), the results are worth it. I prefer ABS for parts that have fine detail, but for larger functional parts like brackets, I find PETG to be a good fit. Edit: Are you using coasting? This can help to reduce the stringing as wellby nebbian - General
Can you upload some higher res pictures of your config parameters please? I can't read those. Also can you measure your diagonal rods accurately, from centre of ball to centre of ball?by nebbian - Delta Machines
Installed mine tonight. Started at 0.5V reference voltage, but it was too low, so went up to 0.7 volts. Seems OK there so far. I didn't put the jumper in to get into spreadcycle mode, it's in the default stealthchop mode. I'm glad to say that the tree rings that I've had forever, are now gone. The printer is now so much quieter that I can hear the balls clicking in the linear rails when theby nebbian - General