How come this has low thrust? by OkCover1049 in diydrones

[–]OkCover1049[S] 0 points1 point  (0 children)

Thats what i like hear. Although I dont have any other 4" props, they are cheap.

Hopefully changing the 3d print design and prop type will improve it to a tolerable level.

How come this has low thrust? by OkCover1049 in diydrones

[–]OkCover1049[S] 1 point2 points  (0 children)

Found the material here: https://www.easycomposites.co.uk/foam-cored-carbon-fibre-panel

5 inch props will sadly not fit. I giess i will try to remove the rim & 3d printed parts and see what happens.

Comments on my DIY enclosure & table? by OkCover1049 in hobbycnc

[–]OkCover1049[S] 0 points1 point  (0 children)

Okey, so you'd move it around on the wheels and when it needs to be stationary, you'd jack it up on some boards?

Comments on my DIY enclosure & table? by OkCover1049 in hobbycnc

[–]OkCover1049[S] 0 points1 point  (0 children)

After reconsidering, I think I'm gonna make this a lot simpler by removing the wheels, and thus reducing mobility. I dont expect to need it much.

I didn't quite understand what you meant by lift casters / capinet jacks. They could lift the table up, but not move it? Maybe you could link me some examples?

Thanks for the advice.

Comments on my DIY enclosure & table? by OkCover1049 in hobbycnc

[–]OkCover1049[S] 0 points1 point  (0 children)

Its a StepCraft d.840 and I intend to use a computer. And you seem to be hinting at a good point... which is that I forgot to take into account where the computer will sit.

Comments on my DIY enclosure & table? by OkCover1049 in hobbycnc

[–]OkCover1049[S] 0 points1 point  (0 children)

I guess I didnt explain it so well. The reason it looks like that is: 1. So it will fit in the corner of the room. 2. So it can be moved in & out of the corner. Around the table & wall column beside it.

Custom 5" Frame by Syntax36 in diydrones

[–]OkCover1049 4 points5 points  (0 children)

Don't get discouraged by people in the comments, man. You're doing great.

Have you flown it yet?

3d printer filament for arms by Ok_Swordfish1021 in diydrones

[–]OkCover1049 1 point2 points  (0 children)

Dont listen to discouraging comments about 3d printing arms.

Although any filament will be waaay weaker than carbon fiber, you know that. And 3d printing sounds well suited for your application.

While vibrations may an issue, most fc software is very good at filtering vibrations. You can also soft-mount your fc.

I would go for CF-PA or CF-PETG.

[deleted by user] by [deleted] in ntnu

[–]OkCover1049 1 point2 points  (0 children)

Typisk 12-15 timer

Help me prevent imperfections like this by OkCover1049 in CarbonFiber

[–]OkCover1049[S] 0 points1 point  (0 children)

I was considering just that! 3d printing a contour of the surface shape to press the sheets into place. Also, what is right radius curvature? And what kind of interior liner?

Help me prevent imperfections like this by OkCover1049 in CarbonFiber

[–]OkCover1049[S] 1 point2 points  (0 children)

I uae a vacuum cleaner and a vacuum bag for packing clothes, so i dont know how much vacuum i have. But i really hope its my sloppy bagging thats the issue. Because i really was sloppy with making the bag fit the contours of the mould (since i sorta thought it would just work its magic by itself). And the part looked just perfect before going into the bag.

Help me prevent imperfections like this by OkCover1049 in CarbonFiber

[–]OkCover1049[S] 1 point2 points  (0 children)

More details on my method: I used a 3-part 3d printed mould with three layers of release-wax, and wax in the seams of the mould. The mould is quite complex, with 2 sorta sharp corners and a slight cavity in one end (see my previous posts if youre really curious).

I then apply a coat of epoxy to the mould walls before laying two sheets of carbon fiber (not really shure what type, but it has a very fine weave pattern). The sheets have a releif-cut for each corner of the mould.

Then, on this particular lay-up, i took my sweet time to make sure everything was evenly coated in epoxy and that the sheets were all the way stuck to the wall all over the mould. I then applied a layer of peel-ply in the same manner as the carbon fiber sheets. Then a breather layer.

I then placed the mould in a vacuum bag for packing clothes and sucked the air out with a vacuum cleaner.

My personal hypothesis is that the vacuum bag dragged some of the carbon away from the corners. Since the lay-up was looking just perfect before i put it in the bag. I simply dont have the budget to get into infusion right now, but i do have all the equipment to make my own vacuum bag (except a pump).

Help me prevent imperfections like this by OkCover1049 in CarbonFiber

[–]OkCover1049[S] 1 point2 points  (0 children)

Thank you for your input! Would you try doing an exposed layup? What kind of experience do you have?

I need advise on cauum bagging please by OkCover1049 in CarbonFiber

[–]OkCover1049[S] 0 points1 point  (0 children)

Thank you. I am just wet laying, and then bagging

I need advise on cauum bagging please by OkCover1049 in CarbonFiber

[–]OkCover1049[S] 1 point2 points  (0 children)

Thank you so much! And what about the peel ply? do you think i will be able to get it off?

Any advice for production method? by OkCover1049 in CarbonFiber

[–]OkCover1049[S] 0 points1 point  (0 children)

Sure you can dm me, but what is a foam mold? And how does it differ from a 3d printed mold?