Disqus - Latest Comments for tristancho

Re: First Blog Post from Barcelona Moon Team

tristancho — Wed, 14 Apr 2010 19:17:22 -0000

Benvinguts a la competició.
Joshua Tristancho

Re: Hybrid rover outdoor test

tristancho — Fri, 19 Mar 2010 12:07:22 -0000

Very nice! Go on.
Joshua Tristancho

Re: Google Lunar X PRIZE Mission Animation

tristancho — Sun, 14 Feb 2010 17:07:37 -0000

WRV1 gets a few seconds of fame in new video from X PRIZE Foundation:
http://www.youtube.com/watc...

This frames are from the video made about one year ago at the RWMS Test Centre (EZO) where i work.

Jörg

Re: Hybrid Rover Test Run

tristancho — Sun, 10 Jan 2010 11:53:15 -0000

Hey SELENE team, this is very nice. You have tested many functional subsystems. Nice to see your progress.

My best,
Joshua Tristancho

Re: Space microscope - pump system

tristancho — Thu, 07 Jan 2010 11:07:18 -0000

Hey this is a nice vacuum pump. Good luck with the balloon flight!
Best,
Joshua

Re: The Hybrid Rover

tristancho — Tue, 05 Jan 2010 08:22:24 -0000

Nice idea. Well done!
Joshua

Re: PicoRover Test on Sand

tristancho — Mon, 04 Jan 2010 21:19:07 -0000

Well, let's wait for the PicoRover dynamic test and see what happens.
My best,
Joshua

Re: Freezer test of HTC Magic phone batteries.

tristancho — Mon, 04 Jan 2010 21:15:29 -0000

Also thanks for the UKHAS link.
Best wishes,
Joshua

Re: Freezer test of HTC Magic phone batteries.

tristancho — Mon, 04 Jan 2010 21:11:01 -0000

Hi stockpotato,
As soon as we have concluded the dynamic PicoRover I will take a video inside the oven at 150 ºC. Right now we are working in the team management part but next week I will continue with the prototype.

I like your new year rover!
My best,
Joshua

Re: Freezer test of HTC Magic phone batteries.

tristancho — Mon, 04 Jan 2010 21:06:22 -0000

Hi Batman,
Did you know if these guys have send a HTC magic phone to the near space? What we try to test is that we can use an easy programable phone to take pictures, send GPS position and recover the probe for less than 200 grams.

Balloon flights are used to test and validate in near space some new technology that are critical in our development, for example electronic components, HD cameras or the radio link. A high altitude balloon is easy to launch but also we want to recover it and that's why we need the HTC phone or other equivalent recovery system. Balloon flights are the farest way than we can go with out use a rocket and is very cheap.

My best,
Joshua

Re: Rocket-propelled moon rover as a surface to surface missile

tristancho — Fri, 02 Oct 2009 03:08:16 -0000

Nice work, SELENE.
Joshua

Re: Listening for LRO and LCROSS

tristancho — Wed, 09 Sep 2009 02:03:39 -0000

Awesome!
I am very excited to know how well this GNU radio will work with LRO signal from space!
My best,
Joshua

Re: WRV1 Update: Motor Controller

tristancho — Sat, 01 Aug 2009 06:52:48 -0000

Very awesome, Joerg.
Joshua

Re: LEGO Picorover Mockup

tristancho — Tue, 28 Jul 2009 07:21:56 -0000

Hi Gary,
I don't know nothing about lunar rover operational details in the Moon; in fact we have many rover designs:
http://wiki.xprize.frednet....

I refer to the Lego Mindstorm competition. One of the goals in this future competition is to use as less power as possible.

Thanks Gary,
Joshua

Re: LEGO Picorover Mockup

tristancho — Mon, 27 Jul 2009 22:25:50 -0000

Gary_Camus,
As far as I know, thrust consumption for PicoRover or other wheel based rover are the same. See this video how moving the counterweight you thrust the PicoRover rolling up the hill:
http://www.youtube.com/watc...
But if you make a high torque without spikes, also you may slip:
http://www.youtube.com/watc...

The main difference is that PicoRover is forced to maintain the torque then it is easy to avoid slip as Pros and as Cons you may run fast in order to be efficient.

You can see our study about it at:
http://wiki.xprize.frednet....

I think it is more efficient when turn than a wheel based rover because there is only one contact point and less friction.

Regards,
Joshua

Re: Mission 3 unveiled

tristancho — Mon, 20 Jul 2009 13:54:39 -0000

I have found the Mission3 a very interesting concept. We have many things to learn and devices to test.
ARCA, Go on!
Joshua

Re: Upcoming Events

tristancho — Sun, 19 Jul 2009 11:02:40 -0000

Thanks for the congrats.
Raúl and Enric made an excelent final bachelor work and now they have the maximum rate. I am very proud for being the teacher of these guys. Now we are all engineers and we will develop or dreams to go to the moon adding our small pixel to the global picture: Team FREDNET mission to the Moon.

Regards,
Joshua Tristancho

Re: Shield for the Picorover

tristancho — Fri, 10 Jul 2009 17:54:42 -0000

Here you have the second vacuum test. The vacuum is made inside the Picorover shield. Is the first time that PicoRover have a window. See at the video how we broke the seal after of suffer up to 250 ºC (482 ºF).
http://www.youtube.com/watc...

Regards,
Joshua

Re: Evadot Podcast #4 – An interview with Team FREDNET

tristancho — Wed, 01 Jul 2009 22:16:14 -0000

I like the Apollo story. Congratulations !!!
Joshua

Re: Evadot Podcast #4 – An interview with Team FredNet

tristancho — Wed, 01 Jul 2009 22:08:11 -0000

I like the Apollo story. Well done Fred.
Joshua

Re: Ars longa, vita brevis

tristancho — Wed, 24 Jun 2009 19:12:38 -0000

Mike, thanks for the work done in X Prize.
Good luck!
Joshua

Re: More Moon with a Webcam

tristancho — Wed, 17 Jun 2009 20:29:58 -0000

The moon is so nice...
Joshua

Re: CAN-Do!

tristancho — Fri, 12 Jun 2009 20:02:34 -0000

Nice article Alex!

Thanks overall to Enric Fernandez (an UPC student in Barcelona, Spain) who is in charge of the manufacturing part and for his patience with providers and some mistakes in the design.

Regards,
Joshua

Re: KAGUYA Impact

tristancho — Wed, 10 Jun 2009 16:53:45 -0000

Very nice this view of the moon, so white!
Joshua

Re: Shield for the Picorover

tristancho — Sun, 07 Jun 2009 16:57:02 -0000

Hey Rocky5, I am building a vacuum chamber for the PicoRover as you proposed but with a Pirex dome.

See this picture:
http://wiki.xprize.frednet....

Regards,
Joshua