OCCRA
Go to Post So.... football pizza water game with minibots and megabots? - euhlmann [more]
Home
Go Back   Chief Delphi > Technical > Motors
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Reply
Thread Tools Rate Thread Display Modes
  #16   Spotlight this post!  
Unread 05-03-2018, 09:10 PM
pkrishna3082's Avatar
pkrishna3082 pkrishna3082 is offline
love/hate relationship with swerve
AKA: Parthiv Krishna
FRC #3082 (Chicken Bot Pie) and FTC #13471 Mentor (Minnetonka)
Team Role: Leadership
 
Join Date: Mar 2017
Rookie Year: 2016
Location: Minnetonka, MN, USA
Posts: 831
pkrishna3082 has a reputation beyond reputepkrishna3082 has a reputation beyond reputepkrishna3082 has a reputation beyond reputepkrishna3082 has a reputation beyond reputepkrishna3082 has a reputation beyond reputepkrishna3082 has a reputation beyond reputepkrishna3082 has a reputation beyond reputepkrishna3082 has a reputation beyond reputepkrishna3082 has a reputation beyond reputepkrishna3082 has a reputation beyond reputepkrishna3082 has a reputation beyond repute
Re: Requesting Any and All Smoked Motors

We may have two smoked BAG motors that fell victim to misassembled VersaPlanetaries. I will have to look around at our next meeting, since they may have been tossed.
__________________

“Courage cannot exist in the absence of fear.”
2010-2011: FLL 11083, 13873 (Minnetonka Silver) - Programmer
2016-: FRC 3082 (Chicken Bot Pie) - Engineering Captain, Driver, Programming Lead
2017-: FTC 13471 (Minnetonka) - Founding Mentor
Reply With Quote
  #17   Spotlight this post!  
Unread 05-03-2018, 09:33 PM
Darre_'s Avatar
Darre_ Darre_ is offline
One Strategic Boi
AKA: Darrell Holmes IV
FRC #2655 (The Flying Platypi)
Team Role: Mentor
 
Join Date: Jan 2017
Rookie Year: 2017
Location: North Carolina
Posts: 126
Darre_ is a splendid one to beholdDarre_ is a splendid one to beholdDarre_ is a splendid one to beholdDarre_ is a splendid one to beholdDarre_ is a splendid one to beholdDarre_ is a splendid one to beholdDarre_ is a splendid one to beholdDarre_ is a splendid one to behold
Re: Requesting Any and All Smoked Motors

Y'all have this all wrong.

You should roast marshmallows over burnt motors c'mon people.
__________________
2017 | -- Team 2655: The Flying Platypi (Student)
2019-Present | -- Team 2655: The Flying Platypi (Mentor)

Consistency and controlling your own destiny is key
Reply With Quote
  #18   Spotlight this post!  
Unread 05-05-2018, 04:22 PM
GeeTwo GeeTwo is offline
In Transition
AKA: Gus Michel II
no team
Team Role: Mentor
 
Join Date: Jan 2014
Rookie Year: 2013
Location: Slidell, LA
Posts: 5,912
GeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond repute
Re: Requesting Any and All Smoked Motors

Sorry, but we've taken to tossing our smoked motors, as no matter how we mark or segregate them, bad items work their way back onto robots. If we smoke any in the next few months, I'll send them along!

Quote:
Originally Posted by Ryan-Greenblatt View Post
I am doing some research on motor thermal modeling, specifically for 775 pros and would like some test subjects I can dissect.
Inspired by the recent hoopla over current limiting, I'm also planning to do some measurements to construct a good mathematical model for motors driven by duty cycle, brake mode, generator characteristics, and thermal buildup and dissipation of the five 100W+ FRC-legal motors still in production and available at AndyMark or Vex (CIM, mini-CIM, BAG, 775pro, RedLine; the 9015 is discontinued). I'm also going to see if you can reliably estimate the armature temperature of motors by measuring their resistance (at least prior to smoking the insulation). I'm planning a white paper in the fall.
__________________

If you can't find time to do it right, how are you going to find time to do it over?
If you don't pass it on, it never happened.
Robots are great, but inspiration is the reason we're here.
Friends don't let friends use master links.
[Quoting brennonbrimhall]: We design a new robot every year, but we can't forget that we also design a new team every year as folks come and go.
Reply With Quote
  #19   Spotlight this post!  
Unread 05-06-2018, 01:24 AM
NathanNFM's Avatar
NathanNFM NathanNFM is offline
AndyMark Mechanical Engineer
AKA: Nathan
FRC #3940 (CyberTooth)
Team Role: Mentor
 
Join Date: Jun 2010
Rookie Year: 2005
Location: Kokomo, IN
Posts: 407
NathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond repute
Re: Requesting Any and All Smoked Motors

AndyMark has a bin of scrap motors. Reasons for a motor to be in there include but are not limited to: smoked, shaft bent, crooked pinion, cracked magnet, testing under water, testing at 48v, or any RMA we can't sell. Problem is I have no idea what's what... Also plenty of them are in various states of disassembly because we are also curious folk. If any of these interest you I can PM you pictures and we can work out shipping. We would gladly forfeit a few dollars in scrap value for more information in the community.
__________________

[2016-20??]: Mentor: FRC Team 3940"CyberTooth"
[2013-2016]: Mentor: FRC Team 365 "MOE"
[2012-2013]: Mentor: FRC Team 3929 "Atomic Dragons"
[2011-2012]: Mentor: FRC Team 365 "MOE"
[2008-2011]: Student: FRC Team 365 "MOE"
[2007-2008]: Student: FTC Team 365 "MOE"
[2005-2007]: Student: FLL Team "The MOEstangs"
Reply With Quote
  #20   Spotlight this post!  
Unread 05-06-2018, 07:01 PM
Jackflef's Avatar
Jackflef Jackflef is offline
Programmer and Guitarist
AKA: Jack LeFevre
FRC #3641 (The Flying Toasters)
Team Role: Programmer
 
Join Date: Jan 2017
Rookie Year: 2014
Location: South Lyon, Michigan
Posts: 22
Jackflef will become famous soon enoughJackflef will become famous soon enough
Re: Requesting Any and All Smoked Motors

Quote:
Originally Posted by NathanNFM View Post
testing under water
Hmm... Might want to lay off on the game hints.
__________________
"A computer is only as smart as the person who programs it"
-Someone who has never heard of machine learning.
Reply With Quote
  #21   Spotlight this post!  
Unread 05-06-2018, 07:08 PM
Tomithy's Avatar
Tomithy Tomithy is offline
Stempower, stempower, stempower
FRC #5727 (REaCH Omegabytes)
Team Role: Mechanical
 
Join Date: Mar 2018
Rookie Year: 2016
Location: North Carolina
Posts: 174
Tomithy has much to be proud ofTomithy has much to be proud ofTomithy has much to be proud ofTomithy has much to be proud ofTomithy has much to be proud ofTomithy has much to be proud ofTomithy has much to be proud ofTomithy has much to be proud ofTomithy has much to be proud of
Re: Requesting Any and All Smoked Motors

Quote:
Originally Posted by NathanNFM View Post
testing at 48v
What's the story behind this?
Reply With Quote
  #22   Spotlight this post!  
Unread 05-06-2018, 07:20 PM
EricH's Avatar
EricH EricH is offline
New year, new team
FRC #1197 (Torbots)
Team Role: Engineer
 
Join Date: Jan 2005
Rookie Year: 2003
Location: SoCal
Posts: 22,012
EricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond repute
Re: Requesting Any and All Smoked Motors

Quote:
Originally Posted by Tomithy View Post
What's the story behind this?
Betting they just wanted to see what would happen at quadruple voltage, see also "we are also curious folk". In order to do that in FRC you'd have to send 4 lines from the PDB to the motor in series, or two from a custom circuit that could do 24V. Either way that would be an illegal setup.


That being said... FRC isn't the only customer of AndyMark. Could be somebody else decided to try using a 12V motor at 48V.
__________________
Past teams:
2003-2007: FRC0330 BeachBots; 2008: FRC1135 Shmoebotics; 2012: FRC4046 Schroedinger's Dragons

"Rockets are tricky..."--Elon Musk



Reply With Quote
  #23   Spotlight this post!  
Unread 05-06-2018, 07:25 PM
NathanNFM's Avatar
NathanNFM NathanNFM is offline
AndyMark Mechanical Engineer
AKA: Nathan
FRC #3940 (CyberTooth)
Team Role: Mentor
 
Join Date: Jun 2010
Rookie Year: 2005
Location: Kokomo, IN
Posts: 407
NathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond reputeNathanNFM has a reputation beyond repute
Re: Requesting Any and All Smoked Motors

Quote:
Originally Posted by Jackflef View Post
Hmm... Might want to lay off on the game hints.
https://www.firstinspires.org/roboti...cim-capability

Quote:
Originally Posted by Tomithy View Post
Quote:
Originally Posted by NathanNFM View Post
testing at 48v
What's the story behind this?
Just some Friday afternoon shenanigans in the ME office. I don't think we wrote any of the results down, so I can't call it science. The motors were already scrap when we started though.
__________________

[2016-20??]: Mentor: FRC Team 3940"CyberTooth"
[2013-2016]: Mentor: FRC Team 365 "MOE"
[2012-2013]: Mentor: FRC Team 3929 "Atomic Dragons"
[2011-2012]: Mentor: FRC Team 365 "MOE"
[2008-2011]: Student: FRC Team 365 "MOE"
[2007-2008]: Student: FTC Team 365 "MOE"
[2005-2007]: Student: FLL Team "The MOEstangs"
Reply With Quote
Reply


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 03:10 PM.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi