I could get the cartridge online, but I just can't get my hands on the cartridge holder. Do you have any suggestions or information on the cartridge contacts so that I can make one on my own?
I'm working on a different application and I'm stuck as there's not much open source info available when it comes to inkjet printing. Well this is some next level stuff i didn't expect such a well explained tutorial about bio printer. Does anyone have recommendations for what type of filter papers to use? And any reccs for different types of experiments to conduct with the bioprinter? I have a grant from my university so I was thinking of purchasing some cells? Hey Folks, I don't know how to find Arduino codes for this 3D printer, anybody knows how can i get them?
I have a question about the Inkshield part. I got my inkshield now but it seems to print not on the entire height. So the bottom part of the letters are cut off?? I checked the contacts an everything seems to be fine, the ink is brand new?
It just chops 1 or two lines of Reply 5 years ago. Hey figured it out at least for me. The root of the problem is that your printhead is not getting 20V throughout the print. I was having voltage drops as i printed which caused the odd printing.
This can be fixed by using a different inductor or by running a 20V line directly thats what I did. So the first image is the problem I think we share. If not what does yours do. The second image is an interesting interaction - when I move the position of the inkhead in the carrier is when I get these results NOTE: The top bar was from testing it the first way mutliple times - normally its just lines.
I move the position by pulling the inkhead out one "click". I know this looks like a short but I have tested for rogue continuity everyday. According to Lewis's website, the second image is indicative of an issue with the ABCD connection but I dont know how to fix it when I know the points are on otherwise how would I get the first image to print at all. I did find some interesting interactions but I dont know what to make of it. I will say though, I did not use his kit. Im working on a 3d printer that uses his tech but the problem im having is an inkshield problem.
So how does it happen for you? Hi, this is really interesting, but sadly doesn't quite tell me what I nee to know for my project. I am trying to get an Epson ink cartridge to print on demand using an arduino.
I already have the movement sorted, but can't figure out how to get the ink to dispense. Is there any way I can make a 3D Printer With an old laserjet printer, and arduino, cd drives? I have 2 arduinos But is there any way I could do that. By Patrik Follow. More by the author:. Bioprinting is printing with biological materials.
Think of it as 3D printing, but with squishier ingredients! There's a lot of work being done at research labs and big companies like Organovo on print human tissues and human organs, with an eye towards drug testing, and transplantation into humans. So a bunch of us at BioCurious decided we wanted to play around with this technology ourselves - and the BioPrinter Community Project was born!
Come join us, every Thursday evening at BioCurious! We wrote this instructable in part to document our project for our fellow Citizen Scientists in the DIYbio community, so it's getting a little long. For those who want a quick 1-minute intro, you may want to check this little video:. Grand Prize in the UP! Contest View Contest. Did you make this project? Share it with us! I Made It! Tea-light Lantern by ruths in 3D Printing.
Reply Upvote. Could you please share with us what do you do to change the ink of the HP C inkjet cartridg? SS 5 years ago. HosseinN10 5 years ago. This design is a proven concept that is similar to the carriage design used on many commercial printers. The platform would need to have a slot in its base underneath the print head so that the ink can reach the print bed.
A visual representation of this platform carriage idea is shown below in Figure 1. The second idea was similar to the platform idea discussed above but also had an extension of the platform running parallel to the x-axis along one side of the printer. Rather than mounting the motor used drive the print head on the center T shaped piece in the first concept, the motor would be mounted along the side of the printer on this flat platform.
A diagram of this second platform idea is shown below in Figure 2. The third design for the carriage was inspired by the RepRap Mendel carriage design and uses a rod frame construction. This design uses sections of steel rod held together by connectors that can be printed on an FDM machine.
Figure 3 below shows a SolidWorks rendering of this carriage design. All three ideas were evaluated using a Pugh decision matrix based on criteria including weight, cost, rigidity and simplicity. The basic platform design was chosen as the datum concept and the other two designs were evaluated against the platform design.
The results are presented in Table 2. After examining the Pugh matrix, both of the platform designs were rejected for several reasons. The first reason was overall weight. Both platform designs incorporated a large central platform structure that would contribute significantly to the weight of the carriage system. By using steel rods for its construction, the rod frame design has much more open space and will weigh less. This reduction in weight becomes important because a lighter carriage is easier for the motors to drive.
The central platform also made the platform designs more difficult to manufacture. The platform would either have to be machined from a piece of metal or printed. However, due to the size of the platform, were it to be printed it would need to be done in multiple builds and would require a large amount of build material. This would also drive up the cost significantly. The Pugh matrix demonstrates that the rod frame design was superior to the platform designs in almost every category and thus it was selected as the final carriage design.
Several options were considered for methods of driving the carriage assembly. The most obvious solution was to use a belt drive similar to the ones used in most inkjet printers currently on the market. This is an effective and proven concept as demonstrated by its widespread use in inkjet printers.
The belt could be driven using either a stepper or DC motor. Stepper motors were selected for two main reasons.
The first reason was that stepper motors have an advantage over DC motors in that they are easier to drive. The other reason that stepper motors were selected was that two stepper motors with matching gears, idlers, and belts were readily available.
Thus it was decided that in order to have a working prototype at the end of the ten week time constraint, it would be beneficial to use the two motors that would be easiest to drive and that came with matching gears, idlers, and belts. For future design iterations, it would be beneficial to revisit this issue and consider using DC motors as an alternative method for driving the carriage. As an alternative to a belt drive system, a screw drive system could be used to move the carriage assembly.
Although a screw drive system could work for this type of application, the belt drive was selected for several reasons. The first consideration involves speed of a belt drive versus a screw drive. The ten week time constraint imposed on this project also made the screw drive system less desirable. As mentioned above, the belts with matching gears and idlers were available and ready to integrate with the carriage system. Thus it was decided to use belt drives rather than screw drives.
One final problem that needed to be addressed for the carriage system was bearings. Some initial testing was done with bearings found in household inkjet printers to see how the different bearings compared.
Bearings and the rods they were designed to ride on were removed from three different printers a Lexmark and two HP printers. Table 3 below gives a summary of the characteristics of the three bearings. It was clear from the results of this test that the C shaped bearings performed the best. This is due to the reduction in surface area in contact in the C shape design. This reduction in surface area in contact reduces friction which allows the bearings to slide smoothly while still properly constraining the carriage.
Thus it was decided to use bearings with a C shape in the prototype. In addition, the bearings were designed in such a way so that a nylon sleeve could be inserted into them to further reduce friction. Even after the C shape was decided on, the bearings went through several design iterations. The original bearing design is shown below in Figure 4. It has the required C shape into which the nylon sleeve was fitted. When four of these bearings were installed on the carriage and tested it was discovered that the entire carriage assembly twisted when the motor switched directions along the x-axis.
It was determined that the twisting was due to the lack of the support on the bearings in the area directly below where the bearings were riding on the x-axis rails.
Support was added and the redesigned bearing is shown below in Figure 5. Installing these bearings on the carriage assembly did significantly reduce the twisting problem to a point where the printer was functional. However, it was very difficult to adjust all four bearings so that the carriage rode smoothly without binding. It was then determined that having four C shaped bearings was over constraining the carriage assembly. Thus it was decided that it would be beneficial to go to a bearing system involving two circular bearings on the side of the carriage with the motor and the belt drive.
On the other side, two sliders were designed to rest on the x-axis rails. The idea was to fully constrain the system with the circular bearings on one side and use the sliders on the opposite side to keep it from being over constrained. Figure 6 below shows the circular bearings and the sliders. The carriage is driven by two stepper motor belt drives one for the x-axis and one for the y-axis. Circular bearings were installed on one side and sliders on the other side to minimize the over-constraint.
All of the connectors used to construct the frame were printed either on the Stratasys machine or on a Mendel. Solidworks renderings of these connectors are shown in Figure 7-Figure 15 below. A breakdown of the cost of printing these parts is given below in Table 4. In addition to the printed parts, various rods, nuts, washers and screws were needed to assemble the carriage. The majority of the rods used to construct the frame are threaded steel rods.
Insert the printer cartridge into the print cartridge holder. Connect the ribbon cable to the Serial Inkjet Printer. BS2 example program. Wave the print cartridge over a piece of paper to print the characters. Considering this, it is necessary that Serial Inkjet Printer Module is powered up either simultaneously with, or sometime after, the host powers up.
BS2 ' Purpose However, these examples are not yet available and will be provided when the Edit-Ink program is completed see Using Edit-Ink in Section 4. Once a character is mapped and appears in this program, it may be printed. CASE directives. Edit-Ink is a simple to use font development program created especially for the x inkjet cartridge. Edit-Ink is a handy tool used to make a special character, or an entirely new font.
It will create any sized character up to 12 drops high by as many as 32 drops long. Once a character is created, it may be saved with a file name. Step 3: Attach the inkjet cartridge holder and Step 4: Remove the protective film from the standoff assembly to the bracket using the A Inkjet Cartridge.
Cartridge into the cartridge holder. Close the latch and the inkjet cartridge will be secured. There are a variety of ways to mount the Serial Inkjet Printer board to a Boe-Bot, so Parallax chose to leave this decision and the hardware up to the customer. CASE directives for baud rates and timing.
The Parallax design uses parts readily available from common electronic suppliers including Digi-Key and Mouser. The Parallax internal BOM is shown below with our own stock codes. Parallax does not sample OEMs any of these components though they are all available for purchase. The primary purpose of the driver program is to allow the user to print a string of characters using the embedded font set.
Secondarily, the program accepts commands to change the timing between character columns to accommodate different paper feed rates , and it allows the user to download a new character definition to the onboard EEPROM.
For educational purposes, the HP If you send commands to demonstrate control using the LEDs, be certain that your inkjet cartridge is not connected to the Serial Inkjet Printer board.
If it is, you will destroy the resistors and throw the inkjet printer cartridge. The single exception is a fixed multiplication routine which is very simple in SX assembly language. After the internal initialization is complete the driver program begins at Start.
After essential setup is complete, the program waits for milliseconds to allow the host e. After this delay, key driver control variables are initialized:. This value is expressed in units of 0. The purpose of this variable is to allow for a constant character width based on the paper feed rate.
Note that the serial port selection is based only on the activity of the USB port at driver start-up, and cannot be changed during the program. Once the active serial port has been determined the program drops into the core at Main.
By placing this delay at the top of the loop redundant code is eliminated from the locations that direct the program back to Main. After the prompt is transmitted the program waits for serial input and places the received by into char. This section of the program does a great deal of work, and can be broken down into the following steps:. Each column requires two bytes, so two consecutive reads from the map buffer are required retrieve the column data.
These values are used to mask the raw column data in order to form the specified firing sequence for the nozzles. Though the print-head has 12 nozzles for a column, only two may be fired simultaneously. The mask table causes the nozzles to be fired in the order recommended by Hewlett Packard for the HPx print-head.
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