You guys own the folder but it doesn’t show in your shared with me since it’s yours so you need either search your name or owned by me on the search bar. So what you do “Sean greenes idea” is you search your name on Google drive and then right click and set it to starred so now it will show on left next to all the shortcuts. You could always make a shortcut somewhere on the computer to but this is the easiest solution.
I moved the folders to a parent directory so no one else can see your folder anymore. When you join you send me message with your email you use for gdrive or gmail and i will add you to the gdrive and also make you an editor of the public uploads. Then you make a folder so you are the owner and it just uses my storage and gives me access then i will move it to the parent directory so it becomes private.
so you make a file with your order no personal info just your order and i can let you knwo progress in the text file and then when its done we delete it. This way your address and stuff go in the private folder but the orders are all right in one place for me so i dont miss any by accident. This will be until the webstore is working
A few months ago, I got the idea for a dual extrusion setup that would reuse a lot of the stock components, and talked to Tom Jones and a few others about it. I also had been working on cable chain modifications and fixing the printer’s other shortcomings. The dual extruder got put on hold because the stock Troodon board was limiting.
I focused on Klipper and RRF3 while trying simplify things, to improve prints. I was able to get amazing prints, but it took excessive calibration and attention to detail. Most troublesome was the constant required attention. The main issue was the cable chain, which then magnified other issues, such as the play in the guide. This is all because of a few things, including partially user error due to lack of instructions. The stock setup has a long moment arm and adding the DDE (direct drive extruder) increases the slop, “depending on other factors anywhere from a little to a very large amount that manifests as banding and ugly walls.” So, fast forward I figured out Klipper and got RRF3 working properly, and during this I tried over 500 dollars in rails from Amazon and AliExpress to Hiwinn, Ldo and THK. I found that no matter what, if I lifted the cable chain by hand, I could measure close to a millimeter of deviation with a laser attached to the hotend. So I then talked to Tom Jones again, and this time felt I would be able to figure the control scheme out for the second extruder, without replacing the board. I also had been running my stock rail on it’s side. We proceeded to design a gantry upgrade that incorporated the New 2.4 belt path that I had been running a version of, with a floating rail to reduce weight. Also we stepped up the size of the rail to increase accuracy at the same time. My main goals were that I wanted to not lose build space, and I wanted to have the dual hotends weigh close to or less than the stock . We achieved the goal, but we still had the crap cable chain.
Now Jake Allen was back to the group as “He bought a Troodon since he previously had one at work, but then no longer had access so he had stepped back.” He wanted to collaborate, so we sent him everything and I started working with Jake and Tom at the same time. However, we had different goals in mind. He wanted “modular with single hotend”. So early on, he asked what guidelines I wanted him to adhere to, so I told him to just keep everything somewhat compatible with each other, and try to minimize weight and loss of build area. It quickly became apparent that it could not happen that way, with a modular design, so I said, “let’s just continue developing both and figure it out,” but every time we updated the mounts or design, Jake incorporated it into his. Around this time, Tom got much busier and I said I need to just do the cable chain, since it is stupid to do this in two steps, it would be waste of work and money. Jake then made a parametric version of the Panzer chain, and I worked out a path and hacked some mounts together. I was able to get it up and running after a few iterations, which proved the wires were long enough if we were creative. Jake then helped me clean up the files and kept teaching me more CAD tricks and commands. So now we had two viable designs. One was a mosquito-centric, but dragon compatible, single hotend setup that could support two fans and a second hotend on the front. This was a jack of all trades, but it was heavier and you would lose around 35-y off each hotend. If you needed to use the supports for the full print, it would lose a lot. I was worried about the plastic mount for the hotend, but it seemed good for someone not really planning on using dual extrusion except occasionally. The original design at this point was able to run dual extruders, with no loss of travel on the main hotend, and 5 to 10 x less with the second hotend. However, it could not support 2 fans and the parts were not modular, “Meaning, a fan duct for one side could not just be mirrored and mount on the other,” but I felt that if I am printing the parts for add-ons, it doesn’t matter to me if I have to design different hole patterns for different sizes. So it was now where one design did what it did better, but the other did more things. So as always, it was either more flexible, or better performance with less options. We had tried the dual setup with Jake’s side by side, but it had to be spaced really wide and it seemed not viable.
We kept working and Jake has had nothing but bad luck with his genuine Mosquito, so he said, “I am done, I’ll just go dragon, we can just do yours and Tom’s for everything.” I hated the way he sounded, as I knew he was bothered. In past I have talked to Tom, and was just talking to Theodor Lasenko the other day, where I mocked it up on a screenshare with the hotends turned 90 degrees. Turned out, the mosquito could mount just as close as the dragons. Funnily enough, Jake had just turned the hotend 90 degrees on his mount too. Then the last thing happened, which was that Berd-Air become viable. A lot have posted online having loud noise, and bad performance but after a lot of testing I found settings for the pump that are great, and between that and a few other tricks, I can print 85 degree overhang with Berd-Air. So end result is that Jake has decided to just jump back over, and we will add mounting holes for a mosquito so now its one design that makes it cheaper for all and just is simpler in many ways. It’s already daunting having a fan duct, a Berd-Air mount, two types cable chains (stock and Voron style), two BLTouch mounts, etc, so we finally are ready to take a tally for orders and place the order. I am working on a full bill of materials, so I can figure out what the upgrade actually costs when all the bolts, etc, is accounted for, because I have tried a lot of different things to arrive at the final bill of materials. Also I have about 30 hrs in on last mounts and 20 hrs in on the newest cable chain brackets with optical endstop, and it seems rock solid.
I am also making some more changes to the orbiter for ease of printing and to it mount better.
This is a basic guide on making a PA (Pressure Advance) gcode file. I plan on forking the code and changing it to natively generate the gcode for RRF and Klipper, but it’s easy, so I am not making that a priority. Just use the above-linked tools.
Generate the gcode for marlin inputting your settings for the filament and nozzle you are using. You want .005 steps ranging from 0 to .1 for most nozzles and filaments. If your filament is very soft or your nozzle is small, then .2 may be better as a maximum value.
Add a G32 after the G28 in the side panel.
Add a T2000 after the P500 on the acceleration line.
Download and open in notepad, or some other simple editor that does not format text.
Use find and replace to find M900 K and replace it with the respective values:
Klipper is SET_PRESSURE_ADVANCE ADVANCE=
RRF is M572 D0 S
Save the file, making sure the extension is .gcode.
Upload to the printer and print.
Find the line that stays most uniform at the speed changes marked by the top two vertical lines.
Enter the corresponding value in your slicer’s filament gcode override. If slicer does not have that, then enter it into your start code and name that profile for the filament you calibrated.
I found some cool diagrams that show the improvements with Klipper pressure advance compared to regular Linear Advance (LA) and PA with the smooth pressure advance algorithm. With direct drive, it does not matter as much, but with Bowden and high values, Marlin and RRF have a hard time keeping up and end up slowing the print a lot to maintain the max acceleration for the extruder in firmware. So, a stock 300 really needs 1.9 and that doubles print times on RRF. With Klipper, it is not a problem and it does not reduce the acceleration as the extruder hits its ceiling. Instead, it smooths out the max values and extends them slightly to the same end result. You can configure the smoothing time if you really are pushing things, but the stock value is adequate. We do not want to reach the point where we start reducing the effectiveness of the pressure advance. This all is not important if running direct drive since we rarely need more than .1 seconds of Pressure Advance with the Orbiter or most other high-end solutions. I just figured it would be interesting to give some background on what is happening under the hood.
The DDE (Direct Drive Extruder) kit is one of the most important upgrades for your Troodon’s if you want to be serious about performance and reliability. However, this does not mean it is perfect. The stock plate mounts with only 3 bolts that are heavily leveraged against as shown in following video.
The STL for the upgrade plate is available for download using the link below.
Alex Or is helping by putting a lot of my pictures and information together into a presentation. It should be ready soon, he had me review his draft. We are making a few changes, but it looks great already. It is time to make a video of the flashing procedure, so Jake Allen installed a new board and let me record a remote session of me flashing it for him.
Here is a video showing the basic harness install.
Holger asked for a picture of the pi camera mounting location.
I do have stock fan shrouds too, but I think I have to adjust the height to work with the dragon and other short hotends, as I have modified these for someone with a stock setup when I first got the printer.
This is start scripts i am doing cura,s3d,superslicer,prusaslicer but i will add anything anyone asks for i just may need them test it once for me to make sure i get the variable right . this will speed heating a lot as it will do things in tandem instead of waiting plus includes purge line to to make sure it clear and retract at end to make sure no clogs or ooze .