Tag: setup (page 2 of 2)

RepRap Prusa i3 First Print Analysis, Adjustments & Second Print

Well after the failure of the first print I was kind of pleased!!! Until it failed it was printing way better than I had expected for a first print.

There were a few issues, as well as the failure of course, to take care of. So I had a close look at what didn’t work, print quality and the cause of the failure.

  • The Heated Bed is heating up very slowly and struggles to maintain temperature
  • When the G Code is loaded from Slic3r and the print button is pressed, nothing happens.
  • There were a few sections of a couple of layers missing – and of course it ended missing layer(s) altogether which led to the failure

I come up with fixes to all these issues and try to print 3D Benchy for a second time….

How to Build a Cheap Prusa I3 MK2 3D Printer – Power Supply, Slicing & First Print!!

In this video I finally get to make the first print… I know how it turned out but you will have to watch to see 😉

Before the printing fun could begin, I needed to take care of some minor things, and one slightly more important thing – the power supply for the heated bed!

For the moment all power for the printer is temporary so I make use of a 12v power supply that I already had. It doesn’t have the output to deliver power to all, but it should take care of the heated bed and I will continue to use the lab supply for the rest.

I also made a few final (before first print!!) changes to Configuration.h and slice up the model using the Prusa version of Slic3r that you can download here. (Also contains the version of Pronterface I am using).

If you want to see how my Configutation.h looks at this stage – grab it here .

 

 

Reprap / Prusa 3D Printer – Complete Initial Setup & Configuration – Step by Step

Bit of a monster video, for me, at nearly an hour. It is compacted as much as possible but there is a lot to fit in!

You can use these links to jump to specific steps in the video:-

Step 1 – Limit Switches
Step 2 – Motor Direction
Step 3 – Homing & XYZ Zeroing
Step 4 – Maximum Endstops
Step 5 – Bed Levelling
Step 6 – Z Probe/Bed Sensor
Step 7 – Extruder Calibration

I power on the printer for the first time and set up the Limit Switches, Axis Movement, End Stops, Bed Extents, Bed Levelling, Z Probe/Bed Sensor and do the Extruder Calibration!

I spent quite some time going through the Marlin documentation to see what each possible configuration instruction could do. I had already done a very basic run through of the Configuration.h file in this video/post but now it was time to get it spot on.

One side benefit of the exercise is that I can see I will need to change the way I mount the heated bed. Most importantly the nyloc nuts sitting on top reduce the Y axis extents by nearly 25%!!!!. But secondly the ply wood under the bed allows the nuts to squash the edges down too much, resulting in the opposite bed bend to that I had before! Still, good enough for a first print 😉

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