Mendel90 using Printrboard revision D electronics (maybe E - I forget)
AKA Reprap 3D printer
Instructions and information
OpenSCAD http://www.openscad.org/ Every 3D printer user should learn OpenSCAD.
Meshlab - useful stl tool http://meshlab.sourceforge.net/
netfabb - model repair tool. http://www.netfabb.com/ To download for free choose the Basic version.
To repair a model
Slice model into gcode
Cura http://software.ultimaker.com/ One of the better fastest slicers. Drop the model onto the checker board, edit settings and Save the gcode. Cura automatically slices the model as you edit things.
All setting (except fill density) need to be as shown including start and end gCode. For things like walled boxes that are only a few mm thick leave the fill at 100%. For large solid items % fill can be reduced to 25% - or better yet edit your model into a walled configuration.
Connect to printer
Turn on printer
There are a couple physical switches on the printer they all need to be on. The front switch will kill the heaters and motors if need be. The rear switch will kill everything including the server. As long as the bed and extruder are off it is ok to leave the server power on so it is avaliable to others. Turn the power on using the web interface enter code M80 in terminal. M81 will turn if off again.
When hot and idle the head can drain and wont lay plastic until it refills. Just before starting a print you can optionally
To adjust the Z height: Turn at the couplers between stepper motors and threaded rods. Anti clockwise goes down. Do not turn so far as to pull the support nut out - the large M8 nut on the threadded Z rod should sit snugly in the bottom of the bracket that connects the Z axis to the X axis.
While printing the skirt or brim - first thing printed, make sure:
PLA prints better with an extruder fan. After 2 or 3 layers have printed turn it on for the rest of the print by using the code “M106”. This will happen automatically if cura is set up correctly.
Remove the part
When the print is complete let it cool and solidify. It you try and remove it too soon you can deform the print.
For PLA Push a knife under one corner of the part and use it to leaver it off the bed working around the edges into the centre. It will probably tare and mess up the green tape.
Plastic stops moving in the extruder:
Print dosn't stick:
Printer dosnt move or heat up
Pressing reset on the printer will disconnect it from the server. It will be unusable until the server is restarted.
Build instructions - note the PDF at the top it is slightly different but a useful guide http://www.reprap.org/wiki/Mendel90_Build_Manual
Blog of the printer designer http://www.hydraraptor.blogspot.com.au/
Models of printed parts https://github.com/nophead/Mendel90/tree/master/mendel/stls
Electronics - printrboard rev D http://www.reprap.org/wiki/Printrboard
LCD panel instructions http://blog.think3dprint3d.com/2012/07/panelolu-with-printrboard.html
ABS and the heated bed have not been tested. Doing so you risk breaking the printer.