Hi, How did you get on with replacing your fuse? I just had a short on my hotend and blew the fuse as well. I am thinking of shorting the fuse with some solder and putting a fuse in the leads of the power supply.by pierrehavelaar - Controllers
@Blue Ice I had inverted Y on my prints at first, so in Marlin I reversed the Y direction, home direction and plugged the endstop into the MAX setting in order to flip it. The Z-stop is in a really bad spot, I simply cannot access the nuts and bolt properly to fix it in place. I fixed it in place as good as I could and then used the bed screws to do the final leveling. I haven't touched the z-stby pierrehavelaar - Prusa i3 and variants
It is not a problem to have your y-motor on the other side as long as your firmware matches. I have #define INVERT_X_DIR true #define INVERT_Y_DIR true #define INVERT_Z_DIR false #define X_HOME_DIR 1 #define Y_HOME_DIR 1 #define Z_HOME_DIR -1 Make sure you plug your endstops correctly into the controller board. Axis that have HOME_DIR 1 should have the endstop in MAX en axis with HOME_DIR -1 shoby pierrehavelaar - Prusa i3 and variants
it depends on how hot your electronics and motors are running at the moment. Say you motors are currently running at 80C then you could elevate your ambient temperature by about 20C, but you are pushing it. The same would be a fact for the electronics, but I see no reason why you should want to keep them inside the enclosure. That would be an unnecessary risk.by pierrehavelaar - General
It would be hard to say what quality you can expect from this kit. It looks neat thoughby pierrehavelaar - General Mendel Topics
A link to where you are intending to buy it would be helpfull. In general the Prusa i3 is a nice printer to start with.by pierrehavelaar - General Mendel Topics
The idea is that you can move it up and down by hand so you can feel how smooth it is moving.by pierrehavelaar - Prusa i3 and variants
The weight of the x-axis will press down onto the nut with the x-idler. I think you should remove the threaded rod or just move the nuts all the way down so you can check if the X-carriage can move freely and smoothly up and down the Z-axis rods. Perhaps the rods are misaligned causing extra friction in the linear bearings. If that is fixed you could add a little silicone based or lithium greaseby pierrehavelaar - Prusa i3 and variants
Most likely you have a A4988 chipset (you can check this on the chip) Here is the page on the wiki how to adjust the current Pololu stepper driver calibration Here is some more information from the forumby pierrehavelaar - General Mendel Topics
You are probably hitting your bed or some other obstruction that is lifting your X-axis of the nut. Otherwise it should keep in place by gravity. Make sure you place your Z-endstop correctly and the have configured it correctly in firmware.by pierrehavelaar - Prusa i3 and variants
Make sure you have heatsinks on the drivers if you are going to increase the current and if that is not enough also add a fan to your electronics. I have also used the trial and error approach and had to turn the trimpot 1/8 clockwise. You should also check that your motors don't get too hot, mine still only get lukewarm, but most motors can handle up to about 100C. I have also increased the currby pierrehavelaar - General Mendel Topics
Using a host software like pronterface you can jog your z-axis bij 10mm. If you do this you can measure with a caliper how far you have actually travelled. For good precision do a travel of 100mm. You will have to adjust your firmware steps/mm to compensate for the difference found.by pierrehavelaar - General Mendel Topics
Did you calibrate the travel distance of you z axis? If you move it 1mm does it actually go for 1mm?by pierrehavelaar - General Mendel Topics
You will either need to increase the current on the polulu with the trimpot (carefull steps and make sure you have a heatsink!) or you can reduce the maximum Z speed in the firmwareby pierrehavelaar - General Mendel Topics
Hi, Vraagje, klopt het dat je zowel assen bestelt bij dold als motedis? Succes met het bouwen, ik zal het zeker volgen!by pierrehavelaar - Projecten
Hi, Maybe you can checkout Mendel90 from Nophead. Seems to be a good kit. I have bought the Prusai3 from reprapworld. I had some issue's with the printed parts, but they did send me some better replacements after I contacted them. Good luck with your choice!by pierrehavelaar - General
I have a Prusa i3 myself and I am happy with the results. It did have some things that were unclear about putting it together. What I have seen of Nophead's Mendel90 looks very good. I think you have to ask yourself 'Will I need 12" build volume?' How often are you going to print such large piece? If you do occasionally want to print something larger, you could put it together from multiple pieceby pierrehavelaar - General
I don't own an RAMPS. Perhaps google the schematics ;-)by pierrehavelaar - General Mendel Topics
I think on Windows you need USB drivers Linux should work directly, make sure you set the baudrate the same as in the firmwareby pierrehavelaar - General Mendel Topics
Try swapping the motor drivers to see if the driver is broken.by pierrehavelaar - General Mendel Topics
Does the status change to open when you press the switch? If so, you could also change the logic in the firmware to deal with the switch. Of course you can use any switch you like.by pierrehavelaar - General Mendel Topics
1 & 2 connect to the "-" and "S" pinsby pierrehavelaar - General Mendel Topics
Make sure you wire your endstop to Ymin on your controller boardby pierrehavelaar - General Mendel Topics
I would just go with the Jhead that comes with it for now. It prints PLA quite well.by pierrehavelaar - General
To get an axis to stop the endstop should be wired to either Xmin or Xmax on your board. I think X+ is meant to move your X axis to the right. At least that is how I have mine setup. You will need to change this in your firmware. Lets take your Y axis. Y+ moves it to the back, your end stop is at the front, so you need to wire the endstop to Ymin on your controller board. If your homing directionby pierrehavelaar - General Mendel Topics
Hi, are these the endstops you have? If so, you can leave one GND wire disconnected. Vcc goes to "+" on the board, GND to "-" and S to "s"by pierrehavelaar - General Mendel Topics
#define DEFAULT_MAX_FEEDRATE {500, 500, 5, 25} // (mm/sec) #define DEFAULT_MAX_ACCELERATION {9000,9000,100,10000} // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot. #define DEFAULT_ACCELERATION 3000 // X, Y, Z and E max acceleration in mm/s^2 for printing moves #define DEFAULTby pierrehavelaar - General Mendel Topics