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ht500:manual [2016/03/23 12:02]
Markus Bürgener [Structural and functional description] image changed
ht500:manual [2018/06/11 14:23] (current)
Simon Kühling
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 ====== General ====== ​ ====== General ====== ​
-Welcome to the HT500 3D Printer operating manual of the Jonas Kühling & Simon Kühling ​GbR (in the following referred to as //​Kühling&​Kühling//​).\\+Welcome to the HT500 3D Printer operating manual of the Kühling&​Kühling ​GmbH (in the following referred to as //​Kühling&​Kühling//​).\\
 The HT500 3D Printer (in the following referred to as //HT500// or //3D Printer//) is a fully automatic stand-alone device for **F**used-**F**ilament-**F**abrication (FFF) in a lab or commercial environment.\\ Any information needed for [[#​setup-and-installation|installing and commissioning]],​ [[#​touchscreen-operation|operating]],​ [[#​troubleshooting|]],​ [[service-guide|maintenance and repair]] of the 3D Printer are described in the following paragraphs and the accompanying sites.\\ The HT500 3D Printer (in the following referred to as //HT500// or //3D Printer//) is a fully automatic stand-alone device for **F**used-**F**ilament-**F**abrication (FFF) in a lab or commercial environment.\\ Any information needed for [[#​setup-and-installation|installing and commissioning]],​ [[#​touchscreen-operation|operating]],​ [[#​troubleshooting|]],​ [[service-guide|maintenance and repair]] of the 3D Printer are described in the following paragraphs and the accompanying sites.\\
 This user's manual must be read thoroughly as it is meant to provide the operator with all information needed to operate the HT500 safely and reasonably. Please always provide access to the website for any user of the 3D Printer in case of questions or problems. This user's manual must be read thoroughly as it is meant to provide the operator with all information needed to operate the HT500 safely and reasonably. Please always provide access to the website for any user of the 3D Printer in case of questions or problems.
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 <WRAP half column> <WRAP half column>
-[{{:reprap-industrial-v1:typeplate_122015.png?​400|Type plate on the rear side.}}]+[{{:ht500:type_plate_ht500.png?​400|Type plate on the rear side.}}]
 </​WRAP>​ </​WRAP>​
 </​WRAP>​ </​WRAP>​
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 ===== Warranty terms ===== ===== Warranty terms =====
-The general [[http://​www.kuehlingkuehling.de/​terms/​|terms and conditions]] of Jonas Kühling & Simon Kühling ​GbR apply. The customer is familiar with these terms latest on the day of signing the purchase contract.+The general [[http://​www.kuehlingkuehling.de/​terms/​|terms and conditions]] of Kühling&​Kühling ​GmbH apply. The customer is familiar with these terms latest on the day of signing the purchase contract.
  
 The warranty terms and the liability period can be found in the contract documents and in the order confirmation. The warranty terms and the liability period can be found in the contract documents and in the order confirmation.
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 </​WRAP>​ </​WRAP>​
 </​WRAP>​ </​WRAP>​
- 
- 
-===== EU declaration of conformity ===== 
-Valid {{:​reprap-industrial-v1:​ec-declaration-of-conformity.pdf|EU declaration of conformity}} for reference. 
  
 ===== Personnel safety and device reliability ===== ===== Personnel safety and device reliability =====
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 ==== Injury risks ==== ==== Injury risks ====
-Some hazards are design related and cannot be avoided by mere constructive measures. To avoid injuries it is necessary that the operator is aware of such situations and takes adequate care. The owner has to make sure that the safety precautions are observed.\\ +Some hazards are design related and cannot be avoided by mere constructive measures. To avoid injuries it is necessary that the operator is aware of such situations and takes adequate care. It is the owners responsibility ​to ensure that every user of the 3D Printer is informed about risks and preventions and that the safety precautions are observed. Access to this manual must be provided at all times.\\ 
-The safety ​advices ​given in the following ​are meant to protect the operator of the HT500. It is the owner'​s responsibility to ensure that anybody working with or on the 3D Printer is familiar with this chapter and observes the given information.\\+The safety ​advice ​given in the following ​is meant to protect the operator of the HT500.\\
  
 === Electrical safety === === Electrical safety ===
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 === Hot surfaces === === Hot surfaces ===
 Outer surfaces of the HT500 are adequately isolated and do not exceed temperatures of +40°C (104°F). They are safe to the touch at any time.\\ Outer surfaces of the HT500 are adequately isolated and do not exceed temperatures of +40°C (104°F). They are safe to the touch at any time.\\
-Inside the build chamber, the heating elements generate the necessary ambient temperature for warp-free printing. Depending on the processed material, surfaces inside the build chamber can **reach temperatures up to +70°C (158°F)**.\\+Inside the build chamber, the heating elements generate the necessary ambient temperature for warp-free printing.\\ Depending on the processed material, surfaces inside the build chamber can **reach temperatures up to +70°C (158°F)**.\\
 The print table is heated separately, also to minimize warpage. It can **reach temperatures up to 130°C (266°F)**.\\ The print table is heated separately, also to minimize warpage. It can **reach temperatures up to 130°C (266°F)**.\\
-The extruder nozzles are heated to melt the filament strands and may **exceed ​temperatures of 300°C ​(572°F)**.\\ +The extruder nozzles are heated to melt the filament strands and may reach **temperatures of 500°C ​(932°F)**.\\ 
-Do not open the build chamber during or immediately after completion of a print job. The print table heating shuts down after finishing a print and cools down to chamber temperature. ​**Always ​wait** at least 10 minutes ​before removing the printed object. This is also to avoid stress cracks due to sudden temperature drop.\\ +\\ 
-If, for reasons of avoiding damage ​(e.g. collisions),​ it becomes necessary to interrupt the printing process and to open the build chamber before ​the cool down time has passed, ​**wear adequate protective gloves** when touching any interior.+Touching heated components may lead to grade 1 burning injuries, in case of the nozzles of grade 2 of limited size.\\ 
 +\\ 
 +To avoid burning injuries: 
 +  * **Do not open** the build chamber during or immediately after completion of a print job. 
 +  * **Always ​switch off** the preheating and wait until the print bed temperature indicated on the touchscreen has dropped below 50°C (122°F) ​before removing the print bed. This is also to avoid stress cracks due to sudden temperature drop. 
 +  * Some tasks require handling at operating temperature ​(e.g. changing ​the nozzle tip). **Wear adequate protective gloves** when handling hot components. 
 +  * Observe the procedures and waiting times stated in this manual.
  
 === Coolant === === Coolant ===
 For proper operation the HT500 is equipped with a closed loop low-maintenance cooling system that needs little interference. The circuit is filled with coolant type //Innovatek Protect IP ready-to-use//​.\\ For proper operation the HT500 is equipped with a closed loop low-maintenance cooling system that needs little interference. The circuit is filled with coolant type //Innovatek Protect IP ready-to-use//​.\\
 If it is necessary to perform works on the cooling system, such as refilling coolant or exchanging defective hoses, avoid direct skin or eye contact. Always wear **adequate protective gloves** that are resistant to chemical substances (e.g. PVC, NBR).\\ If it is necessary to perform works on the cooling system, such as refilling coolant or exchanging defective hoses, avoid direct skin or eye contact. Always wear **adequate protective gloves** that are resistant to chemical substances (e.g. PVC, NBR).\\
-Observe the information provided in the manufacturer'​s safety data sheet.+Observe the information provided in the {{:​ht500:​eg_safetydatasheet_innovatekprotect_eng.pdf|manufacturer'​s safety data sheet}}.\\
 Additional information concerning the cooling system and required maintenance can be found in the [[service-guide#​cooling-water-pump|Service Guide]].\\ ​ Additional information concerning the cooling system and required maintenance can be found in the [[service-guide#​cooling-water-pump|Service Guide]].\\ ​
  
 +=== Noise ===
 +The HT500 3D Printer is build to be operated in a professional environment such as workshops and laboratories. It is not suited for the operation in an office. During print jobs, it does not exceed 60dB(A), which is considered "​unauspicious"​ for long-term exposure.\\
 +Special noise protection equipment is not required. ​
 +
 +=== Fumes ===
 +Molten plastics may emit unpleasantly smelling fumes. The HT500 3D Printer is equipped with an activated charcoal filter element to reduce such fumes. It is mainly to reduce smells and **does not** protect from toxic fumes that evaporate from overheated plastics. Such fumes can be **perilous**.\\
 +It is vitally important not to exceed the temperature limits stated for a printed [[knowledge-base#​materials|material]]. Overheating is indicated by discoloration and coking. ​
 ==== Emergency stop ==== ==== Emergency stop ====
 You will find a red **Emergency STOP** button in the top-right corner of the touchscreen. In case of any unexpected performance of the 3D Printer, press this button to immediately stop any mechanical movement in the build chamber and to shut down all heater elements.\\ You will find a red **Emergency STOP** button in the top-right corner of the touchscreen. In case of any unexpected performance of the 3D Printer, press this button to immediately stop any mechanical movement in the build chamber and to shut down all heater elements.\\
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 ====== Structural and functional description ====== ====== Structural and functional description ======
 +The following paragraphs name and explain all components of the HT500 to give you an exact overview. The terms are used consistently throughout this manual and will help you identifying any part you may wish to find or [[http://​kuehlingkuehling.de/​shop|order as a spare part]].
 +
 +===== Functional principle =====
 +<WRAP group>
 +<WRAP half column>
 +The HT500 3D Printer uses the **F**used **F**ilament **F**abrication (FFF) process to build up workpieces in subsequent layers of 0.10 to 0.60mm thickness. The plastic filament is heated in the nozzle to its melting temperature and continuously conveyed by a cogwheel. The molten plastic is pressed through the bore of the nozzle tip and onto the heated print bed. After each layer the print bed is lowered by the preset layer height and the next layer is applied. The heat of the newly applied plastic ensures an adequate binding of the layers.\\
 +\\
 +All temperatures and movement commands are provided by the GCODE, a file format previously generated with a "​slicing"​ software. This file contains all information for a single print job and is uploaded to the 3D Printer via the [[operation#​the-web-interface|web interface]]. All Kühling&​Kühling 3D Printers are built to operate best with [[http://​slic3r.org|Slic3r]],​ an OpenSource Software designed for professional 3D printing.\\
 +\\
 +After the workpiece has been finished the user can leave it in the heated build chamber to slowly cool down thus reducing shrinkage and internal tensions, or he can immediately remove it and start the next print job.
 +The layered building process enables the user to create even complex forms that otherwise could not be realized.
 +</​WRAP>​
 +
 +<WRAP half column>
 +[{{:​ht500:​fff_principle_manual.png?​400|The layer-by-layer build-up of random geometries becomes possible with FFF-3D Printers.}}]
 +</​WRAP>​
 +</​WRAP>​
 +
 +
 +===== Hardware components =====
 <WRAP group> <WRAP group>
 <WRAP half column> <WRAP half column>
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 |  2  | [[#​Electronic chamber|Electronic chamber]] ​ | |  2  | [[#​Electronic chamber|Electronic chamber]] ​ |
 |  3  | [[#​Touchscreen|Touchscreen]] ​               | |  3  | [[#​Touchscreen|Touchscreen]] ​               |
 +<WRAP clear/>
  
-The following paragraphs name and explain all components of the HT500 to give you an exact overview. The terms are used consistently throughout this manual and will help you identifying any part you may wish to find or order as a spare part.\\ \\ +The HT500 is built on an aluminum ​framework ​covered with acrylic panelsIts main functional sections are the upper [[#Build chamber|build chamber]] ​and the lower [[#​Electronic chamber|electronic chamber]]. The build chamber ​is covered with translucent ​plates to provide insight during production. It contains all mechanical components, the [[#​air-filter|air filter]]. At the back cover, the [[#Filament supply|filament supply]] is installed.\\ \\ The lower  is covered with opaque ​sheets ​and contains the electronic components and the mains adapter. All connections and the power switches are located here and the [[#​Touchscreen|touchscreen]] for operation is mounted at the front cover.\\ \\ All covers are fixed to the frame with M4x20 hexagon socket screws and hammerhead nuts, thus being easy [[ht500:​service-guide#​opening-the-electronic-chamber|to remove]] and making all around access possible to all parts if required.
-The HT500 is built on an alloy framework ​and is mainly divided into two chambersThe upper  [[#Build chamber|build chamber]] is covered with acrylic glass plates to provide insight during production. It contains all mechanical components. At the back cover, the [[#Filament supply|filament supply]] is installed.\\ \\ The lower [[#​Electronic chamber|electronic chamber]] ​is covered with opaque ​plastic plates ​and contains the electronic components and the mains adapter. All connections and the power switches are located here and the [[#​Touchscreen|touchscreen]] for operation is mounted at the front cover.\\ \\ All covers are fixed to the frame with M4x20 hexagon socket screws and hammerhead nuts, thus being easy [[ht500:​service-guide#​opening-the-electronic-chamber|to remove]] and making all around access possible to all parts if required.+
  
 </​WRAP>​ </​WRAP>​
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 |  **R**  |  Right  | Right side of the 3D Printer, referred to the frontal view.  | |  **R**  |  Right  | Right side of the 3D Printer, referred to the frontal view.  |
 |  **B**  |  Back  | Backside of the 3D Printer, referred to the frontal view  | |  **B**  |  Back  | Backside of the 3D Printer, referred to the frontal view  |
-</​WRAP>​ 
- 
-<WRAP half column> 
-[{{:​reprap-industrial-v1:​desc_points_of_view.png?​400|Directions and aspects of the 3D Printer. All statements refer to the frontal view.}}] 
-</​WRAP>​ 
-</​WRAP>​ 
  
- 
-<WRAP group> 
-<WRAP half column> 
 All movement directions of the axes are defined throughout this manual as follows: All movement directions of the axes are defined throughout this manual as follows:
 |<100% 5% 25% 70%>| |<100% 5% 25% 70%>|
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 |  **Z⊕** ​ |  Z positive ​ | Print table moves down.  | |  **Z⊕** ​ |  Z positive ​ | Print table moves down.  |
 |  **ZΘ** ​ |  Z negative ​ | Print table moves up.  | |  **ZΘ** ​ |  Z negative ​ | Print table moves up.  |
 +
 +
 +
 </​WRAP>​ </​WRAP>​
  
 <WRAP half column> <WRAP half column>
-[{{:reprap-industrial-v1:desc_moving_axes.png?400|Denotation ​and direction determination ​of the axes.}}]+[{{:ht500:directions_ht500.png?400|Directions ​and aspects ​of the 3D Printer. All statements refer to the frontal view.}}]
 </​WRAP>​ </​WRAP>​
 </​WRAP>​ </​WRAP>​
- 
  
 <WRAP group> <WRAP group>
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 </​WRAP>​ </​WRAP>​
  
-===== Build chamber ​=====+==== Build chamber ====
 <WRAP group> <WRAP group>
 <WRAP half column> <WRAP half column>
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 <WRAP half column> <WRAP half column>
 The nozzle is [[service-guide#​changing-the-nozzle-tip|exchangeable]] to provide different bore diameters for different materials, layer thicknesses or print speed. Ex factory, the 0.35mm tip is preinstalled. Additionally,​ three nozzles with diameters of 0.25mm, 0.5mm and 0.75mm are included. The tips are distinguishable by the engraved markings.\\ \\ The nozzle is [[service-guide#​changing-the-nozzle-tip|exchangeable]] to provide different bore diameters for different materials, layer thicknesses or print speed. Ex factory, the 0.35mm tip is preinstalled. Additionally,​ three nozzles with diameters of 0.25mm, 0.5mm and 0.75mm are included. The tips are distinguishable by the engraved markings.\\ \\
-The 0.35mm and the 0.5mm nozzles should be used for most purposes and can be operated at an extrusion ​speed of up to\\ 60mm/s. The [[https://​github.com/​kuehlingkuehling/​RepRap-Industrial-Slic3r-profiles|Slic3r profiles]] provided by Kühling&​Kühling are optimized for the 0.35mm nozzle. Additional information can be found in the [[service-guide#​changing-the-nozzle-tip|Service Guide]] and in the [[http://​manual.slic3r.org/​|Slic3r manual]].\\ Please try and find the settings best suited for your task. The Slic3r profiles will be constantly updated and extended.\\ The 0.75mm nozzle is primarily intended for experimental usage and should only be used with a max. extrusion ​speed of 20mm/s for a start. Adjust the extrusion ​speed stepwise until optimized for your needs.\\ The 0.25mm nozzle is for filigree, thin walled extrusions. Do not exceed an extrusion ​speed of 35mm/s since the material throughput will not suffice for higher speeds.+The 0.35mm and the 0.5mm nozzles should be used for most purposes and can be operated at a print speed of up to\\ 60mm/s. The [[https://​github.com/​kuehlingkuehling/​RepRap-Industrial-Slic3r-profiles|Slic3r profiles]] provided by Kühling&​Kühling are optimized for the 0.35mm nozzle. Additional information can be found in the [[service-guide#​changing-the-nozzle-tip|Service Guide]] and in the [[http://​manual.slic3r.org/​|Slic3r manual]].\\ Please try and find the settings best suited for your task. The Slic3r profiles will be constantly updated and extended.\\ The 0.75mm nozzle is primarily intended for experimental usage and should only be used with a max. print speed of 20mm/s for a start. Adjust the print speed stepwise until optimized for your needs.\\ The 0.25mm nozzle is for filigree, thin walled extrusions. Do not exceed an print speed of 35mm/s since the material throughput will not suffice for higher speeds.
 </​WRAP>​ </​WRAP>​
  
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 Every axis is equipped with a Hall effect sensor and a magnet for accurate home positioning. If the Hall effect sensor nears the magnet and measures the defined threshold value of the magnetic field strength, the sensor effects a "​stop"​ signal via the microcontroller. After all sensors have given this signal the moving axes are in home position. The home position is the reference value for all relative movement of the extruder head and the print bed. Every axis is equipped with a Hall effect sensor and a magnet for accurate home positioning. If the Hall effect sensor nears the magnet and measures the defined threshold value of the magnetic field strength, the sensor effects a "​stop"​ signal via the microcontroller. After all sensors have given this signal the moving axes are in home position. The home position is the reference value for all relative movement of the extruder head and the print bed.
  
-Temperature sensors (thermistors) measure the relevant temperatures for the printing process, i.e. the extruder temperature,​ the print bed temperature and the build chamber temperature. All thermistors deliver their input signal to the microcontroller and thus effect switching on and off the according heating resistor.\\ The extrusion temperature is measured at the [[#Extruder head components|heating block]] near the heating resistor and the relevant values for the control of the latter.\\ The print bed temperature is measured directly at the heating pad with which it is looped in a control circuit.\\ The build chamber sensor is installed at the elevator assembly and measures the air temperature inside the build chamber. Its measurements influence the control of the heating resistors inside the [[#Build chamber|heating elements]].+</​WRAP>​
  
-A limit switch is installed at every filament inlet of the filament feed unit (see [[#Filament supply|below]]).+<WRAP half column>​ 
 +[{{:​ht500:​desc_x-sensor.png?​400|Hall effect sensor and magnet ​of the X-axis.}}] 
 +[{{:​ht500:​desc_y-sensor.png?​400|Hall effect sensor and magnet of the Y-axis.}}] 
 +[{{:​ht500:​desc_z-sensor.png?​400|Hall effect sensor and magnet of the Z-axis.}}] 
 +</​WRAP>​
 </​WRAP>​ </​WRAP>​
  
 +<WRAP group>
 <WRAP half column> <WRAP half column>
-[{{:​reprap-industrial-v1:​desc_x-sensor.png?​400|Hall effect sensor ​and magnet of the X-axis.}}] +Thermistors measure the relevant temperatures for the printing process, i.e. the print bed temperature ​and the build chamber temperatureAll thermistors deliver their input signal to the microcontroller and thus effect ​switching on and off the according heating resistor.\\  
-[{{:​reprap-industrial-v1:​desc_y-sensor.png?​400|Hall ​effect ​sensor ​and magnet of the Y-axis.}}] +\\ 
-[{{:​reprap-industrial-v1:​desc_z-sensor.png?​400|Hall effect ​sensor and magnet of the Z-axis.}}] +The print bed temperature is measured directly at the heating pad with which it is looped in a control circuit.\\ The build chamber ​sensor ​is installed at the elevator assembly ​and measures ​the air temperature inside the build chamberIts measurements influence the control ​of the heating resistors inside ​the [[#​Build ​chamber|heating elements]].\\ 
-[{{:​reprap-industrial-v1:​desc_thermistors_printbed_chamber.png?​400|Thermistors ​of the print bed (1) and the build chamber ​(2).}}]+\\  
 +The extrusion temperature is measured directly at the [[#Extruder head components|heating cartridge]] by an integrated thermocouple.\\  
 </​WRAP>​ </​WRAP>​
 +
 +<WRAP half column>
 +[{{:​ht500:​desc_thermistors_printbed_chamber.png?​400|Thermistors of the print bed (1) and the build chamber (2).}}]
 </​WRAP>​ </​WRAP>​
 +</​WRAP>​
 +
 +A limit switch is installed at every filament inlet of the filament feed unit\\ (see [[#Filament supply|below]]).
  
 <WRAP clear></​WRAP>​ <WRAP clear></​WRAP>​
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 <WRAP half column> <WRAP half column>
  
-[{{:reprap-industrial-v1:​desc_filamentfeedunit.png?​400|Filament supply}}] +[{{:ht500:​desc_filamentfeedunit.png?​400|Filament supply}}] 
-[{{:reprap-industrial-v1:​desc_filamentfeedunit_dustsponge.png?​400|Filament inlet with limit switch and dust wiping sponge.}}]+[{{:ht500:​desc_filamentfeedunit_dustsponge.png?​400|Filament inlet with limit switch and dust wiping sponge.}}]
 </​WRAP>​ </​WRAP>​
 </​WRAP>​ </​WRAP>​
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 |<100% 5% 95%>| |<100% 5% 95%>|
 ^  No.  ^ Description ​  ^ ^  No.  ^ Description ​  ^
-|  1  | [[http://​doku.radds.org/​en/​|RADDS]] v1.5 3D Printer ​Controller ​ | +|  1  | [[http://​doku.radds.org/​en/​|RADDS]] v1.5 3D Printer ​Driver Shield ​ | 
-|  2  | [[http://​www.udoo.org/​|UDOO]] Single Board Mini PC  | +|  2  | [[http://​www.udoo.org/​|UDOO ​Quad]] Single Board Mini PC  | 
-|  3  | 3V power supply for internal clock  |+|  3  | 3V power supply for internal ​real-time ​clock  |
 |  4  | Solid State Relays on cooling substructure | |  4  | Solid State Relays on cooling substructure |
 |  5  | 12V(DC) Mains Adapter ​ | |  5  | 12V(DC) Mains Adapter ​ |
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 The chamber is completely covered with white acrylic sheets fastened to the aluminum frame with hexagon socket screws and hammerhead nuts.\\ The chamber is completely covered with white acrylic sheets fastened to the aluminum frame with hexagon socket screws and hammerhead nuts.\\
  
-The RADDS 3D Printer ​Controller ​controls all processes of the printing process, i.e. the drives, the heating resistors, heating fans and the temperature sensors. Exchangeable hardware components are the stepper motor drivers.\\+The RADDS 3D Printer ​Driver Shield in conjunction with the SAM3X microcontroller on the UDOO board controls all processes of the printing process, i.e. the drives, the heating resistors, heating fans and the temperature sensors. Exchangeable hardware components are the stepper motor drivers.\\
  
-The UDOO Single Board Mini PC provides the GUI of the [[#​Touchscreen|touchscreen]] and the ethernet connection and processes the G-codes of the slicing software.\\+The UDOO Quad Single Board Mini PC provides the GUI of the [[#​Touchscreen|touchscreen]] and the ethernet connection and processes the G-codes of the slicing software.\\
 Slots in the bottom cover provide an air inlet for the cooling unit.\\ Slots in the bottom cover provide an air inlet for the cooling unit.\\
  
-When the 3D Printer is switched off the internal clock of the Mini PC is fed by two external batteries so that the time signal is not lost.+When the 3D Printer is switched off the internal ​real-time ​clock of the Mini PC is fed by two external batteries so that the system'​s ​time signal is not lost.
  
 The solid state relays switch the four heating resistors of the [[#Build chamber|build chamber]] heating and the heating resistor of the [[#Print table and print bed|print table]].\\ The solid state relays switch the four heating resistors of the [[#Build chamber|build chamber]] heating and the heating resistor of the [[#Print table and print bed|print table]].\\
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 The transport box is made of unfinished plywood and may hold splinters and sharp edges that can cause cutting injuries. The transport box is made of unfinished plywood and may hold splinters and sharp edges that can cause cutting injuries.
   * Take care when removing the transport packaging and wear protective gloves.   * Take care when removing the transport packaging and wear protective gloves.
 +</​WRAP>​
 +
 +
 +<WRAP note>
 +NOTE
 +
 +If the 3D Printer has a temperature below 16°C (e.g. directly after delivery in cold weather) there is a danger of air humidity condensing on sensitive electronic components. This can lead to severe damages due to short circuiting during commissioning.\\ Therefore, it is necessary to thoroughly let the 3D Printer warm up to ambient temperature for at least 12 hrs. at its operating place **prior** to commissioning.\\ Regard the [[technical-data#​td-ac|ambient conditions]] required for operation.
 </​WRAP>​ </​WRAP>​
  
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 ====== Imprint ====== ====== Imprint ======
-//Jonas Kühling & Simon Kühling ​GbR\\  +// Kühling&​Kühling ​GmbH\\  
-Im Wiesengrund 23\\  +Christianspries 30\\  
-24113 Molfsee\\ +24159 Kiel\\ 
 Deutschland\\ ​ Deutschland\\ ​
 E-Mail: office@kuehlingkuehling.de\\ ​ E-Mail: office@kuehlingkuehling.de\\ ​
 Tel.: +49 (0) 431 98 35 24 73\\  Tel.: +49 (0) 431 98 35 24 73\\ 
 \\  \\ 
-Handelsregister\\  +Local Court: Amtsgericht Kiel\\ 
-USt.-Ident.-Nr.: DE283006938\\  +Commercial Register No.: HRB 17535\\ 
-WEEE-Reg.-Nr.DE 11304600\\  +Managing Directors: Jonas Kühling, Simon Kühling, Karsten Wenige\\ 
-\\  +VAT Reg.No.: DE305873054
-Geschäftsführer\\  +
-Jonas Kühling\\  +
-Simon Kühling//+
ht500/manual.1458734559.txt.gz · Last modified: 2016/03/23 12:02 by Markus Bürgener