After some heavy 3D printing, your ProJet 660Pro or 460Plus will ask you to replace the HP11 print head, this is normal and the HP11 print heads are considered a consumable. On average, you will go through the clear print head after every 1 – 2 full builds (8 inches high and 10-15 inches wide). The rate of which you replace the print head will vary depending on the amount of binder used by the print job but the print head will not exceed its life of 1000ml of binder on the clear head and 500ml of binder on the color heads. So, if you are near the end of the print head’s life, it is best to replace the print head before printing your next job.
When changing the print head most people are usually in a rush trying to send their print job, they usually just pull back the Fast Axis and replace the print heads without following the proper procedure. This can lead to issues with the print heads as well as the electronics like the Pogo card because the printer doesn’t have a chance to disable the power going into the carriage and put it into a standby state. Below I go through the steps to replace the print head the right way and go over some recommended cleaning steps to take while replacing the print heads.
The right way to change the print head is by:
Using the ProJet’s control knob go to the “Print Head” menu and then select the “Change Print Head” menu option (make sure the top cover is closed), this will make sure no power is going through the pogo pins when removing or inserting the print head
Once the “Change Print Head” option has been selected the fast axis will move to the front and the carriage will move to the left side and the Pogo card will be shut off. It will also display the “Change Print Heads Clean Under Carriage” Prompt on the LCD screen.
Using a mirror check the underside of the carriage for buildup and debris and wipe clean with a wet paper towel moving from a left to right motion to avoid getting the alignment sensor window dirty. Also, make sure to avoid wiping the bottom of the print heads.
Then hit Continue and it will display the “Insert New Heads and Press Continue” on the LCD screen
Open the carriage cover by pulling back the two tabs and remove the old print head by pulling on the blue tab or print head upwards.
Wipe down the Pogo pins with a dry paper towel, removing any residue or debris that may be on the pins and only use the alcohol crush swabs if there is any hard or stuck on debris and make sure to dry the pins using a paper towel after using the crush swab to ensure the alcohol doesn’t short the print head or Pogo pins.
After the pins, have been cleaned and dried, insert the new print head making sure to push down on the pin side not the septum to ensure good contact with the pins. Also, make sure to remove the blue tape found on the print head otherwise you will receive an error saying unable to read print hear or the “1003: I2C Read Failed” error displayed on the LCD screen
Repeat steps 5-7 until all needed print heads are replaced and then close the carriage cover
Close the top cover and hit continue, the LCD will display “Reading Head Info” and the printer will check the heads and move to the park position
The LCD will display “Head Status Updated”, hit “Exit” and the printer will go to the online state. If an error does come up double check that the print head is new, the tape is removed and it is making good contact with the Pogo pins.
Run the “Fill Bed and Align” option found in the “Print Heads” menu to make sure the printer is ready to print by purging the heads and running the alignment.
Following these steps will ensure you will not accidentally short your print heads out and receive an error or even worse damage the pogo card. If you do receive an error, it is always best to check the print head to be sure the blue tape has been removed and it is seated correctly. If the error is persistent you can always contact us for support by calling our office or emailing us at 3DPrinting@microsolresources.com and send us the log file and serial number following the steps from our previous blog post.
Autodesk licenses are designed to make using the products easier for you. When you purchase your Autodesk software, you’re given two main types of licensing options: stand-alone or network.
SINGLE USER/STAND-ALONE LICENSES
Stand-alone licenses are ideal for individuals or small offices that require only a few people to access and use Autodesk products. They do not require network connectivity to run and usually cost less than network licenses.
A stand-alone license with single-user access supports one or more Autodesk products for an individual user and computer. Single-user access is ideal for individuals or small offices requiring one or more stand-alone licenses of software assigned to specific user(s) or device(s). For most Autodesk products, a copy can be installed on a second computer for “non-concurrent usage;” meaning that the two copies cannot run at the same time (i.e. you can use your Autodesk products on your work computer, as well as your personal computer when out of the office).
Purchasing multiple-seats of a stand-alone license supports a specific number of users, allowing you to install, register, and activate one or more Autodesk products on several computers using a single serial number.
Network licenses are ideal for larger organizations that require many individuals to access and use Autodesk software from multiple locations. Multi-user access allows more than one person to share software licenses.
A network license supports the use of Autodesk products up to a maximum number of users or “seats”, who are connected to a server network. The products can be installed on as many computers as desired; however, at any one time, can only run on the maximum number of computers for which licenses have been purchased. Because you can install the products on more systems than the number of licenses purchased, you get true floating licenses across your entire organization.
A software utility called the Network License Manager (NLM) issues licenses to users, up to the number of seats purchased. If all network licenses are in use, no more computers can run the Autodesk product until a license is returned to the NLM. The NLM is supported by the three possible server models. When purchasing a network license, you specify the server model which best suits your needs. Your three options are:
Single license server model – The most basic of the three options, the NLM is installed on only one server, so all license management and activity is restricted to one single location. A single license file represents the total number of licenses available on the server.
Distributed license server model – Licenses are divided across more than one server, each containing a unique license file representing a portion of your total number of licenses. The NLM is installed on each server so all license activity and management is distributed among the number of servers that best suits your needs. Servers do not need to exist on the same subnet and, if one fails, the licenses on the remaining servers are still available.
Redundant license server model – All licenses are configured on three different servers. Each server contains the same license file so all of your software licenses are available on each server. The NLM is installed on each server and can monitor and issue licenses as long as at least two of your three servers are functional. All three servers must be located on the same subnet and have consistent network communications (slow, erratic, or dial-up connections are not supported).