hey Andy!
I just finished the whole translation and revisal few minutes earlier before I add you as my friend.
I'm thinking about the cover. If you can make a new cover for this Chinese Version, I'll apppreciate it!
And all the translators have admit that put their names on the cover. If you need, I can give the names list to you by email.
hi andy!
I really thank for your GH tutorial. its so helpful for me, specially second edition, i wish you publish the 3rd!
I have a problem in designing a tree structure that can adopt with envirnmetal efects like wind, sun, etc in GH. I research in bionic and emergence structure and i want to design a GH that can show the environmental and structural (like gravity and material properties) in GH, I appreciate your help.
Thanks Andy
behrang
Hi andy.
I am new user of grasshopper. Your GH tutorial is of great help. I am at a junction of modeling an analogue study model based on folding (origami). I have looked at the Rigid Origami Simulator by tomohiro tachi. It modifies or folds symmetrically and has limited control. A reply to my query at the GH forum has suggested to look at ron resch fold developed by you del.jpg
Please suggest some tutorials or links to definition to look at.
Hey Andy
Do you know who is taking charge of this web? I have a sugestion for him. Maybe we can encourage people to share their definitions of Grasshopper. In this way, we can communicate more and learn more. I think it is one of the core popurse of this web.
Awesomeness, thanks for the link. Good to hear that you arrived safely. And again, thank you so much for sharing your knowledge with us over the weekend! Cheers, F
Hi Andrea,
Unfortunately, I am not involved in the enrollment process for this event. I am pretty sure that Ronnie and Gil will still be teaching the Grasshopper II section, however you may want to email Scott Davidson or one of the ACADIA conference coordinators to ask about logistics.
I hope this helps.
-Andy
Hi Andy.
Is current Firefly compatible with the new Arduino UNO? I have been to the recent workshop in London and we were introduced to the new board.
Thank you
I am fairly new to arduino and grasshopper, as well. I'm after a sound responsive vertical surface that moves with the sound frequencies produced from a central source (a piano) in an enclosed space. So we basically are trying to read a sound input and turn it into the surface's movement parameter.Should we use firefly to input sound?
thank you for your reply. I did have a look at Firefly's Audio components.
We're trying to move an "arm" similar to the polyline in screenshots, where each member rotates in relation to the members in either side of it. The two end members are fixed at one point. (Thinking in section) a fabric skin is attached to the arms. This skin moves according to the arms' movement behind it. We have an Adruino Uno board connected to grasshopper.
If sound produced by speakers of laptop is our input data, how will it be input into arduino? Also is it possible for us to divide the frequencies of Piano keys into 3 categories of low, medium and high and have them as the output that moves the structure? If yes how should we do that?
Thanks again for your help today with the capacitors. I have another question regarding quadsteppers and I'm not sure which forum for Firefly is current. Is the most recent forum at firefly.squarespace.com? I had trouble finding a discussion part on the new web site.
Anyway, I posted a question there about increasing stepper speeds with the Quadstepper driver. I'm trying to attach a dremel to a reprap to turn it into a router. The quadstepper works great, but I just need some more juice. Thanks for any help.
I really appreciate the quick response. My issue here is speed. I took a look at AccelStepper.h, which mentions that speeds above 1000 steps/sec are unreliable...so just to test it, I tried setting the stepper speed to 1000 on the quadstepper component. The steppers I'm using are vextas: http://www.interinar.com/vexta-px243m-03aa.html, which have a step angle of .9. So a speed of 1000 should give me an rps of 2.5, but when I set the quadstepper to a speed of 1000, the actual rps I'm getting is really slow, its more like .2 rps.
i've hooked up a dc motor with an h bridge circuit and i have been able to control the rotation and speed so far through Arduino code. Now i wanted to do the same through Firefly, but it keeps working with the Arduino sketch ignoring the current values i am sending through Firefly, shouldn't the Arduino sketch be overwritten? However that was not the case with servos..
Hey Andy. Have much enjoyed your gcode definitions in the past and have started using firefly, another great tool. I am trying to do something that sounds like it may have a technical roadblock. I want to read pulse output from an arduino that is running the gcode interpreter GRBL. I use grbl with my diy cnc but I am trying to cobble together a simulator for testing and understanding the firmware and gcode programs I use. The arduino pumps out pulses that are only 5-50 microseconds wide. I think I can set them as big as 255 microseconds wide. I can read the output at 1ms intervals using firefly but obviously drop a lot of information. Do you think there is a way to successfully read those pulses in through firefly?
Thanks Andy. That cleared up a lot and reinforces what David explained. Had the same thought about handling the high frequency data on Arduino and sending data much less frequency to Grasshopper. Sounds like a challenge that will take some time to figure out.
Andy I sent you a friends request. I am emanuel From the workshop at
TEXFAB. I am having a issue with the steppers and was wondering if you could take a look at the Grasshopper build that i have used from the library samples.
Wudi
I just finished the whole translation and revisal few minutes earlier before I add you as my friend.
I'm thinking about the cover. If you can make a new cover for this Chinese Version, I'll apppreciate it!
And all the translators have admit that put their names on the cover. If you need, I can give the names list to you by email.
May 22, 2009
Dr Behrang Eghbali
I really thank for your GH tutorial. its so helpful for me, specially second edition, i wish you publish the 3rd!
I have a problem in designing a tree structure that can adopt with envirnmetal efects like wind, sun, etc in GH. I research in bionic and emergence structure and i want to design a GH that can show the environmental and structural (like gravity and material properties) in GH, I appreciate your help.
Thanks Andy
behrang
May 30, 2009
Muhammed Shameel
I am new user of grasshopper. Your GH tutorial is of great help. I am at a junction of modeling an analogue study model based on folding (origami). I have looked at the Rigid Origami Simulator by tomohiro tachi. It modifies or folds symmetrically and has limited control. A reply to my query at the GH forum has suggested to look at ron resch fold developed by you del.jpg
Please suggest some tutorials or links to definition to look at.
Thank You
shameel
May 30, 2009
Wudi
Is the Japanese Version finished? When do you put the Chinese Version on the web? Or you have to check this to make sure there is no problem?
Will you put it on this web or LIFT?
Jun 10, 2009
Wudi
I probably fogot my password in LIFT architects. I couldn't find the sign up link. Can you send it to me ?
Jun 12, 2009
Wudi
Do you know who is taking charge of this web? I have a sugestion for him. Maybe we can encourage people to share their definitions of Grasshopper. In this way, we can communicate more and learn more. I think it is one of the core popurse of this web.
Jun 15, 2009
Fei-Ling Tseng
Jul 20, 2009
Mani Mani
I'm trying to modify your arduino code for the pan/tilt servos to work with a stepper motor, any tips?
cheers,
mani
Dec 7, 2009
Benjamin Golder
Mar 14, 2010
Firefly
Unfortunately, I am not involved in the enrollment process for this event. I am pretty sure that Ronnie and Gil will still be teaching the Grasshopper II section, however you may want to email Scott Davidson or one of the ACADIA conference coordinators to ask about logistics.
I hope this helps.
-Andy
Aug 28, 2010
Luca Biselli
Is current Firefly compatible with the new Arduino UNO? I have been to the recent workshop in London and we were introduced to the new board.
Thank you
Luca
Oct 13, 2010
rodolfo.baiz
Hi Andy,
Thank you very much for your helpful explanation!
Mar 11, 2012
Alina Minassian
Hi Andy,
I am fairly new to arduino and grasshopper, as well. I'm after a sound responsive vertical surface that moves with the sound frequencies produced from a central source (a piano) in an enclosed space. So we basically are trying to read a sound input and turn it into the surface's movement parameter.Should we use firefly to input sound?
Thank you
Sep 13, 2012
Alina Minassian
Hi Andy,
thank you for your reply. I did have a look at Firefly's Audio components.
We're trying to move an "arm" similar to the polyline in screenshots, where each member rotates in relation to the members in either side of it. The two end members are fixed at one point. (Thinking in section) a fabric skin is attached to the arms. This skin moves according to the arms' movement behind it. We have an Adruino Uno board connected to grasshopper.
If sound produced by speakers of laptop is our input data, how will it be input into arduino? Also is it possible for us to divide the frequencies of Piano keys into 3 categories of low, medium and high and have them as the output that moves the structure? If yes how should we do that?
thanks heaps for your explanationGH-Rhino%201.jpgGH-Rhino%202.png2.png
Sep 13, 2012
Alina Minassian
GH-Rhino%203.jpg
Sep 13, 2012
lmnts
Andy,
Thanks again for your help today with the capacitors. I have another question regarding quadsteppers and I'm not sure which forum for Firefly is current. Is the most recent forum at firefly.squarespace.com? I had trouble finding a discussion part on the new web site.
Anyway, I posted a question there about increasing stepper speeds with the Quadstepper driver. I'm trying to attach a dremel to a reprap to turn it into a router. The quadstepper works great, but I just need some more juice. Thanks for any help.
-Erick
Oct 25, 2012
lmnts
Andy,
I really appreciate the quick response. My issue here is speed. I took a look at AccelStepper.h, which mentions that speeds above 1000 steps/sec are unreliable...so just to test it, I tried setting the stepper speed to 1000 on the quadstepper component. The steppers I'm using are vextas: http://www.interinar.com/vexta-px243m-03aa.html, which have a step angle of .9. So a speed of 1000 should give me an rps of 2.5, but when I set the quadstepper to a speed of 1000, the actual rps I'm getting is really slow, its more like .2 rps.
Oct 25, 2012
lmnts
Andy,
FYI, I just hooked up a different type of stepper motor (http://robotics.reefat.com/wp-content/uploads/2008/08/PF35T-48L4.pdf) and the speed is much better. This must be a hardware issue I'll have to look at. Sorry for the trouble.
Erick
Oct 25, 2012
philip pappas
Hi Andy,
i've hooked up a dc motor with an h bridge circuit and i have been able to control the rotation and speed so far through Arduino code. Now i wanted to do the same through Firefly, but it keeps working with the Arduino sketch ignoring the current values i am sending through Firefly, shouldn't the Arduino sketch be overwritten? However that was not the case with servos..
Should i reset the Arduino?
Thank you
Feb 14, 2014
Anan Ashour
Hey Andy,
many thanks for your great plug-in.
I am trying to start using Kinect in Grasshopper and I am wondering if you can provide me with some tutorials/hints for beginners?
Many Thanks
Jun 8, 2014
Matthew Gilbride
Hey Andy. Have much enjoyed your gcode definitions in the past and have started using firefly, another great tool. I am trying to do something that sounds like it may have a technical roadblock. I want to read pulse output from an arduino that is running the gcode interpreter GRBL. I use grbl with my diy cnc but I am trying to cobble together a simulator for testing and understanding the firmware and gcode programs I use. The arduino pumps out pulses that are only 5-50 microseconds wide. I think I can set them as big as 255 microseconds wide. I can read the output at 1ms intervals using firefly but obviously drop a lot of information. Do you think there is a way to successfully read those pulses in through firefly?
Jun 15, 2014
Matthew Gilbride
Thanks Andy. That cleared up a lot and reinforces what David explained. Had the same thought about handling the high frequency data on Arduino and sending data much less frequency to Grasshopper. Sounds like a challenge that will take some time to figure out.
Jun 15, 2014
manny ferro
Hello ,
Andy I sent you a friends request. I am emanuel From the workshop at
TEXFAB. I am having a issue with the steppers and was wondering if you could take a look at the Grasshopper build that i have used from the library samples.
Thank You
Manny Ferro
Mar 31, 2015