Recent Posts

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21
Mechanics and Construction / Re: problem with weight and friction
« Last post by mklrobo on April 20, 2015, 01:50:28 PM »
 ;D Hello!
In reference to the issue you are explaining, as best I can interpret, I would
suggest using a physics book, specifically the REA solution series. They should have
a "free body diagram" for you to use.
To move a body at rest, on the ground, you have to overcome static momentum, and
once you have it moving, you use kinetic momentum, as best I can remember at this time.
I think the quick answer you are looking for is in the tutorials, in this forum. Good Luck!!  ;)
22
Misc / Re: Analyzing the Axon series: Coding, Construction, and Contraptions
« Last post by mklrobo on April 19, 2015, 06:37:24 PM »
ya! back on line!  ;D ;D ;D ;D ;D ;D
23
Misc / Re: Analyzing the Axon series: Coding, Contruction, and Contraptions
« Last post by mklrobo on April 13, 2015, 03:00:02 PM »
Axon Series: What is this thing?
Since the error pointed toward a toolchain problem, I looked
this up in AVR Studio. The help portion of the software indicated
that there would be some compilation messages if the project compiled
correctly. I did not see anything of the sort, when compiling my program. It also indicated that some other software(download) was needed to help build the rest of the files so the program could be built properly. :'( The setting up of all this is going to consume ALOT of time. :'(  ???  I sure thought that it would
be simpler than this,  >:( , but I will give it the best shot I can!  ;D ;D ;D
24
Software / Re: Need help for Voice recognition car
« Last post by mklrobo on April 13, 2015, 01:24:05 PM »
 ;D Hello!
I am trying to put together a system, but have a BIG problem with programming the
Axon, at this time. If I can not program the MCU, I have to  use another MCU to
get the projects done, and that would be terrible. :'( You can see my progress,
so far, in the miscellanous section, Analyzing the Axon: Coding, Construction, and Contraptions.
 8) 8)
25
Software / Re: Need help for Voice recognition car
« Last post by APJ1234 on April 13, 2015, 01:18:12 PM »
Any new updates?????
26
Misc / Re: Analyzing the Axon series: Coding, Contruction, and Contraptions
« Last post by mklrobo on April 13, 2015, 10:02:48 AM »
Axon Series: What is this thing?
OK,  :D I went back through my KDE C++ programming environment,
and also saw messages. NOW, some messages are critical, some
messages are not.(for user/author info) When I compiled the
source code file, no compilation errors occurred; just a message
like I posted earlier. SO, I will try to download the program into
the Axon anyway  :P, and hope I do not damage the MCU. If I destroy
the MCU, and do not find help or a resolution, that may end my
journey with the Axon series. :'(
27
Misc / Re: Analyzing the Axon series: Coding, Contruction, and Contraptions
« Last post by mklrobo on April 13, 2015, 09:05:01 AM »
Axon Series: What is this thing?
Definitely ran into a problem! :'( The compilation process is
more involved than in the tutorials. :-X  Tried Webbot Studio,
and that was even more frustrating. :( Do not know what to
do to make the program compile properly. Will have to delve
into the software; see if I can find notes in any files to help me
out. No info in the tutorials. Will cross reference with other similar programs, to find out what is going on. :o Makes using the Axon, hard for me.
Hope I can work through this, make take awhile.  :'(
28
Mechanics and Construction / Re: piston crankshaft help
« Last post by bdeuell on April 12, 2015, 03:00:39 PM »
why not use the motor to drive the vehicle and the piston to actuate the steering? Remember the KISS principle it is your friend despite how much you hate it.

anyways if you insist on using the piston to generate rotary motion you can tie the control valve to the rotational position to control what position the piston moves for that angular position, i.e. the piston moves up 0-180 and down 180-360. if your piston only a power stroke in one direction you would need to start in the region of that power stroke, i.e. for a up only power stroke it would need to start in the 0-180 range. if your piston is powered in both directions it could start in either the 0-180 or 180-360 regions but if it started at the top dead center TDC or bottom dead center BDC there would be no torque to rotate the. the possible starting regions will actually be a little smaller because near the TDC and BDC positions the torque would be too low to overcome friction. I suggest you take a look at some steam engines.
29
Mechanics and Construction / Re: piston crankshaft help
« Last post by dvdngu on April 11, 2015, 05:43:27 PM »
start it in only one direction (i.e. starter motor)... inertia will do the rest assuming you fire the piston at the correct time

with multiple pistons you may be able to use firing sequence to start the direction of rotation as well.

If I am understanding you correctly, you are saying to add a motor specifically for the purpose of giving the crank shaft an initial push in the direction that I want? If that is the case, I would rather not add a motor, as the project I am working on is only allowed to have one motor (which I am using for steering) and one pneumatic piston (which I am using for the propulsion of the robot). I was wondering if there was a specific/clever way in which I build a stereotypical piston/crankshaft system in which it would rotate in one direction only. For example, I was thinking about putting the axle of the crankshaft slightly offset from the plane of the axle of the piston, but I fear that the crankshaft will not rotate at all in this case or high stresses will be created on the system.
30
Mechanics and Construction / Re: piston crankshaft help
« Last post by bdeuell on April 11, 2015, 04:38:17 PM »
start it in only one direction (i.e. starter motor)... inertia will do the rest assuming you fire the piston at the correct time

with multiple pistons you may be able to use firing sequence to start the direction of rotation as well.
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