Renkforce RF2000 v2 Series - 14 Calibration; A) Overview of Calibration; B) General Notes on Calibration

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14. Calibration
a) Overview of calibration
This provides a brief overview of the calibration of the RF2000 v2.
• Determiningthepositionwiththesmallestdistance.
Here, you can determine the highest position on the printing plate that has the shortest distance from the extruder nozzle. All settings are
based on this position. Therefore, you should determine this position as precisely as possible.
• BasicsettingsoftheupperZ-limitswitch.
This setting usually is only required once. The only exception is when something changes on the printing plate or the extruders. Here, you
shouldatleastcheckthesettingandadjustitifapplicable.Ifyouhaveacquiredanisheddevice,thesesettingsweremadeatproduction
already.Sincetransportcanalsoinuencethis,werecommendcheckingthepropersettings.
• Heatingupthesettingtemperature.
 ThesettemperaturehereisthestandardprintingtemperatureofPLA(extruder230°C;printingplate60°C)orABS(extruder260°C;printing
plate 120 °C).
Pleasenotethatthecorrecttemperaturesdependonthelamentused.Therefore,werecommendrepeatingthesettingwiththe
optimalprintingtemperatureofthelamentused.
• Settingtheleftextruder(extruder0).
Here, the extruder (in the dual extruder the left one) is set to 0.3 mm in the hot condition for the printing plate scan (at the highest position of
the printing plate).
• ExecutingtheHeadBedScan
We recommend the performing the Head Bed Scan for PLA ("Scan PLA") or ABS ("Scan ABS"). In this case, the printer automatically heats
uptothecorrespondingtemperatures.Youonlyneedtolowerthetwoextruderstotheprintingplateuponrequestinthedualextruder.
For the quick head bed scan ("Scan"), you need to set everything manually, incl. the Z-offset. On this, observe chapter "14. e) Executing the
quick head bed scan". For the settings for the Z-offset, see the menu "Conguration" - "Z Calibration" -
"Z Offset". Alternatively, the Z-offset can also be controlled via the G-code.
b) General notes on calibration
Attention! Never touch the hot extruders or the hot printing plate! There is a danger of burns!
When heating, there may be slight development of smoke or steam. This is normal. Please ensure the corresponding ven-
tilation.
Nolamentmaybeenteredintheextrudersduringcalibration,sincethemeasuredvalueswouldotherwisebefalsied.
 Iftherealreadyissomelamentintheextruders,itmustbecompletelyremovedfromthetwoextrudersbeforecalibration.
Forthis,observechapter"15.c)Removingandchangingthelament"ormethod3inchapter"21.b)Cleaning".
Also ensure that the extruder nozzles are clean on the outside. If they are contaminated, clean it as described in chapter
"21. b) Cleaning".
 Thetwoextrudersorthetwonozzlesmustbecleanedsothatnolamentescapesanymorewhentheyareheatedtoprint-
ing temperature.
Ensure that the distance bolts are completely screwed into the lower table, the printing plate is supported level on the
spacer bolts and the four attachment screws are completely screwed into the spacer bolts. The printing plate must not
wobble!
The different heat bed scans cannot replace correct basic settings of the limit switch for the Z-direction or the setting of the
distance between the nozzle and the printing plate. It serves to balance out slight irregularities of the printing plate while
printing.