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In ExtremePhysics / Tutorials:

Maarten Baert

Administrator

Comment #1: Thu, 29 Jun 2017, 0:00 (GMT+1, DST)

Quote


Quote: Krishiv768

So I need to make a tornado like obstacle with a conical "force" field like a magnet but in all directions.

Is that a question? I don't understand what you mean.

In ExtremePhysics / Tutorials:

Krishiv768

Comment #2: Wed, 28 Jun 2017, 12:15 (GMT+1, DST)

Quote


So I need to make a tornado like obstacle with a conical "force" field like a magnet but in all directions.

Last modified: Wed, 28 Jun 2017, 18:15 (GMT+1, DST)

In Quadcopters / Pagoda antenna:

Maarten Baert

Administrator

Comment #3: Sun, 25 Jun 2017, 22:10 (GMT+1, DST)

Quote


Quote: Austinthemighty

What is the dimensions of the pcb?

22.5 mm diameter for the large PCBs. If you want more details, just use the design files.

In Quadcopters / Pagoda antenna:

Austinthemighty

Comment #4: Sun, 25 Jun 2017, 5:57 (GMT+1, DST)

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What is the dimensions of the pcb?

In Quadcopters / Pagoda antenna:

Maarten Baert

Administrator

Comment #5: Sat, 24 Jun 2017, 1:38 (GMT+1, DST)

Quote


Quote: Quadgod

I want to make a little bit longer than normal antenna for my goggles maybe around 7 to 8 inches so it clears the top of my head well is this okay will there be any loss or performance issues?

You won't lose performance by making the coax longer, except for the losses in the coax itself, which is very low for RG402, so don't worry about it.

In Quadcopters / Pagoda antenna:

Quadgod

Comment #6: Fri, 23 Jun 2017, 17:39 (GMT+1, DST)

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I want to make a little bit longer than normal antenna for my goggles maybe around 7 to 8 inches so it clears the top of my head well is this okay will there be any loss or performance issues?

In SimpleScreenRecorder / Recording game audio:

Maarten Baert

Administrator

Comment #7: Mon, 19 Jun 2017, 22:30 (GMT+1, DST)

Quote


Quote: Xeno

Hello!
Brilliant app but I do not know what to use to record my voice and game sounds. It's very frustrating. I've tried different settings but when I save the video it comes up with "GStreamer Error". Perhaps you could help me with this?
A good app though, well done! :)

What? SSR doesn't even use GStreamer. Where do you see that error?

In Quadcopters / Pagoda antenna:

Tomkanovik

Comment #8: Sat, 17 Jun 2017, 23:54 (GMT+1, DST)

Quote


Quote: Austinthemighty

Does the length of the coax cable matter?

The creator said, it havent influence.

In Quadcopters / Pagoda antenna:

Austinthemighty

Comment #9: Fri, 16 Jun 2017, 7:46 (GMT+1, DST)

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Does the length of the coax cable matter?

In Quadcopters / Pagoda antenna:

Tomkanovik

Comment #10: Wed, 14 Jun 2017, 13:05 (GMT+1, DST)

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Can you post 16 (4x4) pagodas 2 revB in one gerber with size 10cmx10cm please?

In SimpleScreenRecorder / Recording game audio:

Xeno

Comment #11: Tue, 13 Jun 2017, 21:14 (GMT+1, DST)

Quote


Hello!
Brilliant app but I do not know what to use to record my voice and game sounds. It's very frustrating. I've tried different settings but when I save the video it comes up with "GStreamer Error". Perhaps you could help me with this?
A good app though, well done! :)

In Quadcopters / Pagoda antenna:

Race412

Comment #12: Fri, 9 Jun 2017, 16:30 (GMT+1, DST)

Quote


For now it is only RHCP but eventually we will be buying some LHCP. We also can do both SMA and RPSMA, just need to update the website

In Quadcopters / Pagoda antenna:

Maarten Baert

Administrator

Comment #13: Fri, 9 Jun 2017, 1:32 (GMT+1, DST)

Quote


Quote: Race412

Thank You! Here is the link to our site, https://squareup.com/store/room-412/ we are thinking about switching the site to another that supports PayPal, right now its only a card because its through square.

Added. What's the polarization?

In Quadcopters / Pagoda antenna:

Race412

Comment #14: Thu, 8 Jun 2017, 5:40 (GMT+1, DST)

Quote


Thank You! Here is the link to our site, https://squareup.com/store/room-412/ we are thinking about switching the site to another that supports PayPal, right now its only a card because its through square.

In Quadcopters / Pagoda antenna:

Maarten Baert

Administrator

Comment #15: Thu, 8 Jun 2017, 1:42 (GMT+1, DST)

Quote


Quote: Eosbandi

Quick question, i need to retune the antenna for 4.8Ghz (4.8-4.9 band). Could it be done by simply changing the distance between the plates, or I have to resize the plates as well ?
Could you give some guidence about retuning ?

It's not that easy. In theory you can scale up everything by the right amount and get a 4.8 GHz antenna, but in practice you won't find the right PCB thickness or coax diameter. So you have to keep those constant and somehow compensate for it. This gets harder when you move further away from the original 5.8 GHz design. It's definitely not something that can be done manually.

I am currently doing some tuning for lower frequencies, I can give 4.8 GHz a try to see if it's feasible without huge changes. I was trying 2.45 GHz first but that isn't working as well as I had hoped (matching is a problem). 4.8 GHz should be easier.

Quote: Race412

Hello Maarten!
My roommate and I were wanting to make and sell some at a very low price, our largest problem so far has been getting our name out there. Is there any way we could get our website in your chart above?
Thank you
Michael Pickering
Chris Wisdom

Sure, tell me when you have some available for sale and I will add it to the list.

In Quadcopters / Pagoda antenna:

Race412

Comment #16: Wed, 7 Jun 2017, 17:04 (GMT+1, DST)

Quote


Hello Maarten!
My roommate and I were wanting to make and sell some at a very low price, our largest problem so far has been getting our name out there. Is there any way we could get our website in your chart above?
Thank you
Michael Pickering
Chris Wisdom

In Quadcopters / Pagoda antenna:

Eosbandi

Comment #17: Tue, 6 Jun 2017, 23:40 (GMT+1, DST)

Quote


Hi Marteen,
First of all, congratulations for the design. It quickly became the new standard for 5.8 antennas :D

Quick question, i need to retune the antenna for 4.8Ghz (4.8-4.9 band). Could it be done by simply changing the distance between the plates, or I have to resize the plates as well ?
Could you give some guidence about retuning ?
Thanks in advance,
EOSBandi

In ExtremePhysics / Tutorials:

Krishiv768

Comment #18: Tue, 6 Jun 2017, 7:26 (GMT+1, DST)

Quote


Quote: Maarten Baert
Quote: Krishiv768

This happens http://imgur.com/1kHRihI
Also the bouncy effect thingy is intentional

The ball isn't stuck, it just doesn't have enough traction to roll up a 45 degree slope. In that case the coefficient of friction is too low. If you want to maintain traction on steep slopes like that, you need a coefficient of friction higher than 1, but that will get you stuck in 90 degree corners.

The easiest option is to just redesign your levels so they don't use 45 degree slopes in places where the player can't get enough speed to roll or jump up.

Thanks. My bad the game im trying to replicate the physics of also doesn't all the ball to roll up 45 degree angles. I figured out the what angle the slopes should be and how the ball should roll up/roll down. And it works.

In ExtremePhysics / Tutorials:

Maarten Baert

Administrator

Comment #19: Mon, 5 Jun 2017, 21:14 (GMT+1, DST)

Quote


Quote: Krishiv768

This happens http://imgur.com/1kHRihI
Also the bouncy effect thingy is intentional

The ball isn't stuck, it just doesn't have enough traction to roll up a 45 degree slope. In that case the coefficient of friction is too low. If you want to maintain traction on steep slopes like that, you need a coefficient of friction higher than 1, but that will get you stuck in 90 degree corners.

The easiest option is to just redesign your levels so they don't use 45 degree slopes in places where the player can't get enough speed to roll or jump up.

Last modified: Mon, 5 Jun 2017, 21:14 (GMT+1, DST)

In ExtremePhysics / Tutorials:

Krishiv768

Comment #20: Mon, 5 Jun 2017, 7:28 (GMT+1, DST)

Quote


Quote: Maarten Baert
Quote: Krishiv768
Quote: Maarten Baert
Quote: Krishiv768

How do I make the ball bounce higher than what it is.(using the rolling ball example)
I do not want to change the gravity.Also how do I make the ball jump in the direction of normal of the contact body?

Im currently changing the normalvelocity to something else and quickly changing it back to 0 to jump. Is there any better way to do this?

If you want the ball to jump away from whatever it is touching, you can use ep_shape_set_material to temporarily change the normal velocity of the ball to a positive value. This should produce the effect you want.

Thanks. But now im facing another problem.
How do I make the ball roll up surfaces without having to run-back-then-run-forward-with-enough-speed roll up. The ball gets stuck spinning between the floor and the ramp.
The ball gets stuck in this position.
                                   O
     /                     /   O/      /-------
____O/.  The ball should roll up like this ____O/. ____/. ____/.

You can avoid this by reducing the coefficient of friction of the ball. If that doesn't work, please show me a screenshot or video, I'm not sure whether I understand your problem correctly.

This happens http://imgur.com/1kHRihI
Also the bouncy effect thingy is intentional

Last modified: Mon, 5 Jun 2017, 7:29 (GMT+1, DST)

In Quadcopters / Pagoda antenna:

Stylesuxx

Comment #21: Mon, 5 Jun 2017, 4:36 (GMT+1, DST)

Quote


Quote: Maarten Baert

Only if you use a plastic shell or heat shrink. If you use it unprotected or with just a styrofoam filler, the default version is better.

OK, thank you for the quick reply. I am planning on using 3D printed spacers and heat shrink, so I will go with version 2B.

Last modified: Mon, 5 Jun 2017, 20:46 (GMT+1, DST)

In Quadcopters / Pagoda antenna:

Maarten Baert

Administrator

Comment #22: Mon, 5 Jun 2017, 0:01 (GMT+1, DST)

Quote


Quote: Stylesuxx

I was wondering, is version 2B the recommended version, or is it just recommended if you want to use a plastic shell?

Thank you Maarten, for this great design!

Only if you use a plastic shell or heat shrink. If you use it unprotected or with just a styrofoam filler, the default version is better.

Last modified: Mon, 5 Jun 2017, 20:46 (GMT+1, DST)

In Quadcopters / Pagoda antenna:

Stylesuxx

Comment #23: Sun, 4 Jun 2017, 3:02 (GMT+1, DST)

Quote


Quote: Maarten Baert

Version '2B' was also created by me, and is included in the latest design files. It is identical to version '2' but re-tuned for antennas with a plastic shell.

I was wondering, is version 2B the recommended version, or is it just recommended if you want to use a plastic shell?

Thank you Maarten, for this great design!

Last modified: Mon, 5 Jun 2017, 20:47 (GMT+1, DST)

In ExtremePhysics / Tutorials:

Maarten Baert

Administrator

Comment #24: Sun, 4 Jun 2017, 2:23 (GMT+1, DST)

Quote


Quote: Krishiv768
Quote: Maarten Baert
Quote: Krishiv768

How do I make the ball bounce higher than what it is.(using the rolling ball example)
I do not want to change the gravity.Also how do I make the ball jump in the direction of normal of the contact body?

Im currently changing the normalvelocity to something else and quickly changing it back to 0 to jump. Is there any better way to do this?

If you want the ball to jump away from whatever it is touching, you can use ep_shape_set_material to temporarily change the normal velocity of the ball to a positive value. This should produce the effect you want.

Thanks. But now im facing another problem.
How do I make the ball roll up surfaces without having to run-back-then-run-forward-with-enough-speed roll up. The ball gets stuck spinning between the floor and the ramp.
The ball gets stuck in this position.
                                   O
     /                     /   O/      /-------
____O/.  The ball should roll up like this ____O/. ____/. ____/.

You can avoid this by reducing the coefficient of friction of the ball. If that doesn't work, please show me a screenshot or video, I'm not sure whether I understand your problem correctly.

In ExtremePhysics / Tutorials:

Krishiv768

Comment #25: Fri, 2 Jun 2017, 9:19 (GMT+1, DST)

Quote


Quote: Maarten Baert
Quote: Krishiv768

How do I make the ball bounce higher than what it is.(using the rolling ball example)
I do not want to change the gravity.Also how do I make the ball jump in the direction of normal of the contact body?

Im currently changing the normalvelocity to something else and quickly changing it back to 0 to jump. Is there any better way to do this?

If you want the ball to jump away from whatever it is touching, you can use ep_shape_set_material to temporarily change the normal velocity of the ball to a positive value. This should produce the effect you want.

Thanks. But now im facing another problem.
How do I make the ball roll up surfaces without having to run-back-then-run-forward-with-enough-speed roll up. The ball gets stuck spinning between the floor and the ramp.
The ball gets stuck in this position.
                                   O
     /                     /   O/      /-------
____O/.  The ball should roll up like this ____O/. ____/. ____/.

In ExtremePhysics / Tutorials:

Maarten Baert

Administrator

Comment #26: Thu, 1 Jun 2017, 23:25 (GMT+1, DST)

Quote


Quote: Krishiv768

How do I make the ball bounce higher than what it is.(using the rolling ball example)
I do not want to change the gravity.Also how do I make the ball jump in the direction of normal of the contact body?

Im currently changing the normalvelocity to something else and quickly changing it back to 0 to jump. Is there any better way to do this?

If you want the ball to jump away from whatever it is touching, you can use ep_shape_set_material to temporarily change the normal velocity of the ball to a positive value. This should produce the effect you want.

In ExtremePhysics / Tutorials:

Krishiv768

Comment #27: Thu, 1 Jun 2017, 13:42 (GMT+1, DST)

Quote


How do I make the ball bounce higher than what it is.(using the rolling ball example)
I do not want to change the gravity.Also how do I make the ball jump in the direction of normal of the contact body?

Im currently changing the normalvelocity to something else and quickly changing it back to 0 to jump. Is there any better way to do this?

Last modified: Thu, 1 Jun 2017, 15:12 (GMT+1, DST)

In Quadcopters / Antennas:

Saboo

Comment #28: Sun, 28 May 2017, 23:32 (GMT+1, DST)

Quote


We use 915MHz for telemetry. Does your simulation software work for the 915MHz range?

Would like to have a design for 915MHz.

Have you worked on other frequency ranges such as 1.2-1.3GHz?

Thanks

In Quadcopters / Pagoda antenna:

Iforge

Comment #29: Thu, 25 May 2017, 10:01 (GMT+1, DST)

Quote


Oh wow thanks Maarten! I thought it was a different one. Thank you so much!

In Quadcopters / Pagoda antenna:

Maarten Baert

Administrator

Comment #30: Wed, 24 May 2017, 2:30 (GMT+1, DST)

Quote


Quote: Iforge

Hi Maarten,

Will you be releasing the Rev. B of the antenna?

Regards,
Jonathan

What do you mean? It is already included in the latest design files.