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http://reprap.org/wiki/Mendel90
Selling my Mendel90 - 11 years ago
Mendel90 for sale in Cork.by tforde90 - Ireland RepRap User Group
Re: Bed Levelling? Z home point? - 12 years ago
I recalibrated the Z home point and it is printing well again. Thanks for the help everyone.by tforde90 - Mendel90
Bed Levelling? Z home point? - 12 years ago
Can someone explain to me what the deal with bed levelling is? After a few prints my Z screw pointers are now about 45 degrees either side of the Z bars when Z is homed. 1. Why does this happen? 2. Does it mean that I have to level my bed again? or adjust my z home point? or both? Or does it mean something different altogether? 3. Does this continue to happen? And if so how often do I have to re-by tforde90 - Mendel90
Re: Resistance issues - 12 years ago
Is this a problem or is it as it should be? According to the manual it should say z_min:Lby tforde90 - Mendel90
Re: Resistance issues - 12 years ago
Discovered another issue from testing the switches in pronterface. M119 gives the result: "x_min:L y_min:L z_max:L" Why is it z_max instead of z_min?by tforde90 - Mendel90
Re: Resistance issues - 12 years ago
The switch still doesn't click but it is functioning properly when it is pressed inby tforde90 - Mendel90
Re: Resistance issues - 12 years ago
Switch problem solved I had soldered to the wrong pins. The thermistor problem fixed itself I'm now getting ~100kohm for both. I'm still getting 1.4ohm instead of 1.2 for the bed heater tho. Will this be a problem?by tforde90 - Mendel90
Re: Resistance issues - 12 years ago
Yes the meter is reading 0.4 and no change when I press the switch. Also on my other 2 limit switches I'm getting no reading (open circuit) and also no change when I press the switch.by tforde90 - Mendel90
Resistance issues - 12 years ago
I'm just about ready to wire up my machine but I came across some issues whilst checking the resistance. The thermistor in the hot end is giving me ~140Kohm while the thermistor in the bed is giving ~100Kohm(as it should), both at room temp. Can anyone explain? Secondly the bed heater is giving me 1.4Ohm when in the manual it says it should be 1.2 - will this be a problem? And also, I've noticeby tforde90 - Mendel90