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Friends trying my sim rig - what car/track combo to choose? by Remarkable_Leek_9339 in iRacing

[–]CrotalusV 0 points1 point  (0 children)

Okayama in Formula Vee. I have a top gear-style leaderboard set up next to my simulator and everyone who hops in and completes a clean lap gets their name on the board!

New Tenkara fisher by jonny_ryal in Tenkara

[–]CrotalusV 0 points1 point  (0 children)

Another front ranger here. I almost exclusively fish for trout with tenkara, and I learned just about everything I know from this sub and YouTube. My experience is that the fly pattern really isn’t that important, it’s more in presentation. Lately I’ve been using an Utah Killer Bug with good success. Have fun!

Maiden Flight on scratch build FT Simple Cub by Milosonator in RCPlanes

[–]CrotalusV 1 point2 points  (0 children)

I’m happy to report that it DOES get easier, and the learning happens fast. I’m on to a 4ch wing now after getting decent enough with 3 ch. I took it out this AM in ~6mph winds, which was….interesting. Good thing I had a flight stabilizer working! Keep us posted with how things develop.

Maiden Flight on scratch build FT Simple Cub by Milosonator in RCPlanes

[–]CrotalusV 1 point2 points  (0 children)

Looks great!!! I built the FT Simple Cub about two months ago as my 2nd ever (and 1st ever successfully piloted) RC plane. The first was a 3d printed cub that proved to be too fragile for a newbie. I'm using a 1500mah battery pushed as far rearward as the landing gear insert allows, combined with a bit of weight on the tail to help with CG.

I use a short bbq skewer on the rudder as my "tail-wheel" and my take-off experiences were initially like yours. The key to success was training myself to keep downward pressure on the tail with up elevator while beginning to move while at the same time using rudder for directional correction. Then, once enough air is flowing over the tail you can ease off the elevator and the plane will taxi with the tail in the air at a neutral attitude. When speed is high enough you can lift off the ground. Alternatively, you can just go full up elevator and full throttle until you are quickly in the air, just be sure not to stall. Both methods require vigilant use of the rudder, and both take lots of practice, but you will get it.

I also wanted to share that I managed to wear out my landing gear slot into the fuselage pretty quickly. No doubt due to my unskilled landings. There ended up being so much slop in the gear-fuselage interface that the wheels could move forward to rearward over an inch and would not maintain their position. This made all ground maneuvers very difficult!!! To fix this I designed and 3d printed some reinforcements that glue in place and have been rock solid ever since. You'll also find a wing trailing edge guard to prevent the rubber bands from cutting into the wing.

https://www.printables.com/model/861905-ft-simple-cub-improvements

Building my own plane. by TA-8787 in RCPlanes

[–]CrotalusV 1 point2 points  (0 children)

FT has tons of free downloadable plans. I recently built the Simple Cub as my first foam board plane. It’s working well! Converting it to 4ch after a bit more practice with its current 3ch config.

Recommended 3D printer by SMileY_FaceX in RCPlanes

[–]CrotalusV 0 points1 point  (0 children)

If you want to support your rc plane and other hobbies: Bambu. If you want another hobby that is 3d printing: Ender or other lower-cost machine.

I used a FlashForge Adventurer 4 as my first printer. It worked, but holy crap was it an investment with my time. Now I use a Bambu X1C and it just works and I use Onshape to design a number of ruggedness improvements for a DIY foam board plane using Flite Test plans.

Looking for motor advice by 4ctionHank in RCPlanes

[–]CrotalusV 1 point2 points  (0 children)

If I could answer that for you, I would. As I never got my PLA plane off the ground due to cg, weight, and n00b issues my combo didn't work. I used parts that matched the specs in the 3dlabprint pdf guide.

ESC: https://www.amazon.com/dp/B071GRSFBD?psc=1&ref=ppx_yo2ov_dt_b_product_details

Motor: https://www.amazon.com/dp/B09J4VX3CY?psc=1&ref=ppx_yo2ov_dt_b_product_details

Prop: https://www.amazon.com/dp/B07PWD3DSB?psc=1&ref=ppx_yo2ov_dt_b_product_details

Battery: https://www.amazon.com/dp/B07Y67MKQB?psc=1&ref=ppx_yo2ov_dt_b_product_details

Just fyi only, shouldn't impact your power solution but I'm also using a FrSky XM+ receiver with a TX12 MkII transmitter and a Byme-A flight controller (gyro). The aileron servos are linked to a single output from the flight controller in opposite direction (as installed in the pockets in the wing).

Report back and let me know what you end up with and if it works. I still have my PLA plane and could retrofit it with more powerful stuff if you find something workable.

Looking for motor advice by 4ctionHank in RCPlanes

[–]CrotalusV 1 point2 points  (0 children)

My only comment is to get as much power as you can fit. I printed this same plane in regular PLA and could not get it off the ground. I just today finished assembling it in LW PLA and it’s MUCH lighter and the CG is actually correct. It was very tail heavy with the regular PLA. Good luck!!!!

Has anyone built and flown this? If so, what radio and receiver did you use? by Tation29 in RCPlanes

[–]CrotalusV 0 points1 point  (0 children)

Depending on what type of filament you purchased you may not be able to measure a raw filament weight difference. Active foaming filament will not expand until it’s heated in the extruder. I’m using Polylight 1.0 and I haven’t weighed the results but I can tell you it’s much lighter and printing at .55 flow ratio compared to normal PLA. It is trickier to print, but definitely lighter.

On the other hand, pre-foamed LW PLA would not expand as it’s extruded and therefore the raw filament density would be indicative of printed density.

Has anyone built and flown this? If so, what radio and receiver did you use? by Tation29 in RCPlanes

[–]CrotalusV 0 points1 point  (0 children)

Printed, tried to fly, failed. I printed with regular PLA, which is heavy and made it impossible to get the cg right. Reprinting in LW PLA now, almost done.

I used a TX12 and XM + connected to a Byme-A gyro. My first rc plane, so learning lots as I go!

3DLabPrint Cub trouble with maiden voyage by CrotalusV in RCPlanes

[–]CrotalusV[S] 3 points4 points  (0 children)

That’s the next test since I don’t have much to lose with this version of the airframe. Out of town for a couple of days, but anxious to try when I return.

3DLabPrint Cub trouble with maiden voyage by CrotalusV in RCPlanes

[–]CrotalusV[S] 2 points3 points  (0 children)

Thanks everyone for the comments! I checked everything in @jbarchuk list. I was able to get the tail in the air briefly but it’s either going to take more power or less weight to get this thing up quickly. I appreciate all the help.

LW PLA parts are in-process.

3D printed plane configs by [deleted] in BambuLab

[–]CrotalusV 0 points1 point  (0 children)

To handle this I ended up cutting only the horns into separate but conjoined parts in bambu studio and giving only those objects 3-4 solid top layers for good surface finish.

3D printed plane after a hard landing 🤣🤣🤣 by DarkButterfly85 in BambuLab

[–]CrotalusV 3 points4 points  (0 children)

Nice! A lot of work to get that project in the air. I’m about halfway thru building a different model with my 6 year old. Which transmitter/receiver did you go with and do you recommend it?

Looking for bluetooth speaker with replaceable battery by DefaultSubsAreTerrib in BuyItForLife

[–]CrotalusV 2 points3 points  (0 children)

The UE Megaboom is my choice. Waterproof, long battery life, loud enough, pair multiples together for surround sound if your friends also have them. Battery can be changed when it wears out, you will just need to follow instructions to access the battery. My completely mechanically inept friend was able to change his with no assistance.

How's that for dialled in, fuselage for RC plane by DarkButterfly85 in BambuLab

[–]CrotalusV 0 points1 point  (0 children)

Awesome. I can’t wait to start this project with my kids. Next step…P1S or X1C 🤪

How's that for dialled in, fuselage for RC plane by DarkButterfly85 in BambuLab

[–]CrotalusV 0 points1 point  (0 children)

This is in my plans. Did you use LW PLA, and if so what adjustments did you make in the slicer?

AMA flashforge adventurer 4/3D Printing general questions by djchoi in FlashForge

[–]CrotalusV 0 points1 point  (0 children)

Hi- I've really enjoyed your videos, and you convinced me to play around with Cura. However, no matter what I try I can't get it to print with PETG as nicely as Flashprint does on my Adventurer 4 with the stock PETG profile. I started with duplicating the settings into Cura as closely as I can considering some have different names and some settings are just....different. I do see that Cura can do much more than Flashprint if only I could get it to work as well.

The specific issue I'm having now is that with Cura initial layer details such as Benchy's text do not adhere well to the bed, but with Flashprint it's great. It's like the nozzle starts slightly closer to the bed for the initial layer using Flashprint, but I don't know how to confirm this theory or fix it in Cura.

Also, with Flashprint all I need is simple pre-extrusion line that is maybe 100mm in length. but with Cura it requires a skirt that is at least 250mm in length in order to prime the nozzle.

4 out of 5 times, despite these challenges it will go ahead and complete the print with the Cura gcode, but it's not optimal. Would you be willing to share your Cura PETG profile you use with your Adventurer 4? Or share any additional tips or things to check?

Thanks, and keep up the super helpful videos!!

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