Hempstead Posted July 5, 2023 Author Posted July 5, 2023 ED forum is now enforcing 500KB per file upload limit... So, you are now treated with the lowest quality pictures I can produce to fit that limit. For crying out loud... disk space is dirt cheap! Anyway... a fit test with previously printed PLA parts... fits just fine... well, mostly... It's a bit tight, and I would have to force it a bit.... and the top cover does not sit 100% flat (needs a bit sanding... I am guessing it's shrinking/warping that is expected of 3D printed parts.. particularly between two different materials). Also found another problem.... See the 3 rivets on the genuine OTTO trigger? Well... I didn't model the extrusion. And the stick was originally designed to be split into two halves... I did encounter a bit of a problem when doing the test fit for the split two halves. So, I designed in a recess for the top pivot rivet. And the two lower ones? Don't care... screw down and the plastic will yield... even better. But that is a problem with the one-piece print.... My tolerance was designed just right... I modeled the NozzleDiameter in it. So, for some critical dimensions, I did reference that NozzleDiameter variable, set to 0.4mm. This way, the trigger will sit in just snug... well.. now I have to design in the "assembly recesses/tracks" for the rivets. Or.... I can use a hammer. 2
Hempstead Posted July 5, 2023 Author Posted July 5, 2023 Looks like I am going to have to reconsider the plan on hosting my own blog on my own hardware/website for this stuff. That is... abandon this thread altogether. I can host the not-so-large pictures on my own servers/staticIP/DNS etc., and refer to them from here... but I hate that idea... as you well all know forums are filled with broken links pointing to pictures hosted on some previously-popular-pictures-hosting-sites-now-defunkt. 1
Hempstead Posted July 7, 2023 Author Posted July 7, 2023 (edited) WTH? Now that I figured out a way to generate higher resolution but smaller file size to fit the 500kB limit. Looks like there is a total upload limit.... 200MB. Should I got and delete all my past posts? Create another account, or just leave? Edited July 7, 2023 by Hempstead 1
Hempstead Posted July 7, 2023 Author Posted July 7, 2023 (edited) That's it... New stuff will be posted here, https://blog.hempstick.org/ The stuff is really hosted by blogger.com, by Google, not on my servers at home. I just set it up to use my own domain DNS entry for the redirect. So, even if I got hit by a bus tomorrow, the stuff will stay online... Edited July 7, 2023 by Hempstead 1
Hempstead Posted July 8, 2023 Author Posted July 8, 2023 (edited) https://blog.hempstick.org/2023/07/f16-like-control-stick-assembly-grooves.html Edited July 8, 2023 by Hempstead
Hempstead Posted July 9, 2023 Author Posted July 9, 2023 (edited) https://blog.hempstick.org/2023/07/f16-like-stick-body-pla-matte-printing.html I can tell you that I am definitely going for the Nylon12 Carbon Fiber. It's very strong. Too bad that Nylon12 generates toxic smoke when burned. So, most likely it won't qualify for mil-spec in the cockpit. But PETG might pass... I have two spool of PETG Carbon Fiber, I should print one of those for study. Anyway... qualifying for mil-spec is not one of my goal. But it might be good for a simulator. Supposedly, Nylon 12 is not that much stronger than PETG... and it's less hygroscopic than Nylon. Printing Nylon is an annoying business... you have to dry the filament (oven for 12 hrs), and/or have to have a filament enclosure, or else. And it's picky on print plate material and glue stick you use... PETG is not that picky. 12 hrs printing... minimal post processing, on a USD $1,500 printer (raw material is about $25)... that makes it commercially viable if you are willing to setup a print farm. But... this is designed for home made, with just a printer and some simple home tools (well... plus some specialized tools and parts you still have to buy). But if you can afford a USD $1,500 printer. You can afford to make it. I will let others have it for free... if only I can figure out a way to share without getting my IP stolen and then be accused of stealing from LMCO, again. Edited July 9, 2023 by Hempstead
Hempstead Posted July 11, 2023 Author Posted July 11, 2023 https://blog.hempstick.org/2023/07/f16-like-controller-trigger-assembly.html Fit test for the trigger assembly groove.
Hempstead Posted July 16, 2023 Author Posted July 16, 2023 https://blog.hempstick.org/2023/07/carbon-goodness-or-bronze-goodness.html Carbon or Bronze?
Hempstead Posted July 16, 2023 Author Posted July 16, 2023 (edited) https://blog.hempstick.org/2023/07/sous-vide-f16-like-control-stick.html Sous Vide my Nylon12 Carbon Fiber F16-like Control Stick 3D print!!! I mean, Annealing! I was shopping for an oven suitable for annealing 3D prints at the right temperature.... although in the back of my mind, I have wanted to do it in one of my ovens... or the jerky oven I have ordered. There are a couple of problems. 1. Although Nylon and Carbon Fiber are both non-toxic, that's not the same as food-safe, or food-grade. Particularly, this filament is made in china -- the land of gutter oil. Whether it's made in china or not is immaterial, the fact that it's not marked as food-grade or food-safe, it's a no go into my regular ovens for cooking food! 2. Regular ovens are not instruments... precision is kind of a concept that does not get talked about in culinary "arts." And my old built-in large oven is from the 1980s... analog control mechanical alarm/timer, and all that. My better oven... the Anova Precision Oven... all modern and all that and there is even an app for it to program and control through WiFi. But.... again, it's for food! 3. The new Jerky Dryer I ordered (still to be delivered) is meant for drying filaments, not for food. And it could only do about 80˚C, just shy of the minimal 90˚C required for Nylon. It can be used to anneal PLA and others but not for Nylon. So, it hit me.... when I narrowed down the model of oven to buy.... Why don't I just vacuum bag that thing in a food safe plastic bag and throw it in my Anova Precision Oven and do that bagless Sous Vide thing? Your regular Sous Vide stick in water immersion operation cannot do more than 100˚C, but this Anova Precision Oven can do higher than 100˚C bagless, non-immersion, Sous Vide! In it goes... We will find out if I ruined a perfectly good print tomorrow! Edited July 16, 2023 by Hempstead
Hempstead Posted July 17, 2023 Author Posted July 17, 2023 https://blog.hempstick.org/2023/07/sous-vide-test-on-nylon12cf-controller.html Sous Vide Annealing Test is a success! Note that it's going to be difficult to do this with a Sous Vide stick in immersion mode, because it's difficult for them to reach 90˚C or even 100˚C Nylon12 needed. But for other plastics with lower glass transition temperatures, it might be viable. However, I am thinking, if it's exactly 100˚C that you need to hold.... you could basically red neck it by steaming it for 12 hrs... I mean buy a cheap aluminum steaming basket, a big pot... and steam it on your stove top for 12 hrs... it's just that you might have to top off the water several times.... maintaining 12 hrs steam is a chore all by itself.
Hempstead Posted July 18, 2023 Author Posted July 18, 2023 https://blog.hempstick.org/2023/07/kids-dont-do-ldpe.html LDPE slumps too much... no good as a bag. But the useless good news is that it does not bond to Nylon.
Hempstead Posted July 19, 2023 Author Posted July 19, 2023 https://blog.hempstick.org/2023/07/design-one-thing-test-many-times.html Don't you ever say I never test my designs!
Hempstead Posted July 20, 2023 Author Posted July 20, 2023 https://blog.hempstick.org/2023/07/price-comparison-between-shapeways-and.html I don't know about you... the price differences between DIY and Shapeways are just too big... PA12 on Shapeways costs > $100 than printing it yourself with PA12 + CF. But, it's an option for those DIY challenged... on the other hand, if you are DIY challenged, you should not be reading this thread to begin with. Unfortunately, PA12 burned fume is toxic. So, it will be difficult to get this mil-spec. approved. 2
Hempstead Posted September 7, 2023 Author Posted September 7, 2023 Haven't posted for awhile. Due to family issues and a bit of health issue. Anyway, I finally decided to build a kinda pit... to get around my health issue. https://blog.hempstick.org/2023/09/a-pit-finally.html 1
Hempstead Posted September 10, 2023 Author Posted September 10, 2023 Added more stuff to the "pit." Mind you, I ain't building a 1:1 pit. I am building a pit for functionalities and flexibility. https://blog.hempstick.org/2023/09/to-pit-to-pit-add-more-stuff-to-pit.html 1
Hempstead Posted April 6, 2024 Author Posted April 6, 2024 Successful tests of the F16 TQS friction generator. https://blog.hempstick.org/2024/04/f16-tqs-electronic-friction-generator.html 1
Hempstead Posted April 13, 2024 Author Posted April 13, 2024 F-16 ICP Button Test https://blog.hempstick.org/2024/04/f-16-icp-button-test.html
Hempstead Posted April 16, 2024 Author Posted April 16, 2024 F-16 ICP "design" render, WIP. https://blog.hempstick.org/2024/04/f-16-wip-icp-render.html
Hempstead Posted April 22, 2024 Author Posted April 22, 2024 (edited) An F-16 ICP Design Test Assembly video Note that the thinner yellow plate is a PCB stand in. The PCB can only be designed after all the mechanical design is done and tested for assembly and some durability. I mean, I have route the traces around the screw holes... I have already moved the screws a few times already for assembly problem. Moreover, I have not decided on what I am going to use for the sensor of the 4 analog wheels yet. Edited April 22, 2024 by Hempstead
Hempstead Posted April 26, 2024 Author Posted April 26, 2024 ICP mode buttons 2-tone 3D printing. https://blog.hempstick.org/2024/04/f-16-icp-panel-2-tone-print.html
Hempstead Posted May 4, 2024 Author Posted May 4, 2024 ICP letter painting... Dobber, and analog wheels. https://blog.hempstick.org/2024/05/icp-letter-painting-dobber-analog-wheel.html
Hempstead Posted May 19, 2024 Author Posted May 19, 2024 F-16 ICP mechanical design fully prototyped. Made with just a 3D printer, and a laser engraver, plus some common hand tools, like screw drivers, needle files, tweezers, paint brushes, cotton patches, etc. Next up... PCB design finally! Without fixing the mechanical design, I couldn't start designing the main PCB, because I wouldn't know where the screws would be and to avoid for routing traces. https://blog.hempstick.org/2024/05/f-16-icp-mechanical-design-fully.html 1
Hempstead Posted June 5, 2024 Author Posted June 5, 2024 Optical Trigger prototype. https://blog.hempstick.org/2024/06/optical-trigger-module-prototype.html
Hempstead Posted June 5, 2024 Author Posted June 5, 2024 (edited) Just received the ICP PCBs. It fits perfectly! I am still waiting for the newer version of Hall sensor PCBs ordered from OshPark (and the main ICP PCBs too, which I forgot to "unmask" the main contact rings of the dome switches; so I will have to grind them off). The ICP main PCB is designed with KiCAD (I have ditched EagleCAD since AutoDesk acquired them.). The Hall sensor PCBs, however, are years old so it's still in EagleCAD format. https://blog.hempstick.org/2024/06/f-16-icp-pcb-made.html Edited June 5, 2024 by Hempstead
Recommended Posts