Go to Post Or you can always say "we programmed it that way." - probizzle [more]
Home
Go Back   Chief Delphi > FIRST > Robot Showcase
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Reply
Thread Tools Rate Thread Display Modes
  #31   Spotlight this post!  
Unread 23-01-2017, 21:12
Harrison.Smith Harrison.Smith is offline
Business, CAD, Mechanical
no team
Team Role: Leadership
 
Join Date: Apr 2016
Rookie Year: 2013
Location: Texas
Posts: 117
Harrison.Smith will become famous soon enough
Re: Team 95 2017 Build Thread

Quote:
Originally Posted by Sam Skoglund View Post
Should it concern me that your rookie year says 2001 and yet you claim to be the one doing the CAD modeling? I though high school students were supposed to do the design work?

Regardless, awesome job! I enjoy this thread each year!
And this is how CD cancer starts..
__________________
“Rest and be thankful.” — William Wadsworth

Team 1296: 2014 - 2016
Reply With Quote
  #32   Spotlight this post!  
Unread 23-01-2017, 21:23
JamesCH95's Avatar
JamesCH95 JamesCH95 is online now
Hardcore Dork
AKA: JCH
FRC #0095 (The Grasshoppers)
Team Role: Engineer
 
Join Date: Dec 2004
Rookie Year: 2001
Location: Enfield, NH
Posts: 1,884
JamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond repute
Re: Team 95 2017 Build Thread

Quote:
Originally Posted by Sam Skoglund View Post
Should it concern me that your rookie year says 2001 and yet you claim to be the one doing the CAD modeling? I though high school students were supposed to do the design work?

Regardless, awesome job! I enjoy this thread each year!
Every team runs things differently. FRC does not dictate roles for mentors or students. I happen to do most of the modeling for 95. We shall leave it at that because there are many other threads discussing this particular topic.

Thank you for reading, I'm glad that you enjoy it!
__________________
Theory is a nice place, I'd like to go there one day, I hear everything works there.

Maturity is knowing you were an idiot, common sense is trying to not be an idiot, wisdom is knowing that you will still be an idiot.
Reply With Quote
  #33   Spotlight this post!  
Unread 25-01-2017, 21:28
JamesCH95's Avatar
JamesCH95 JamesCH95 is online now
Hardcore Dork
AKA: JCH
FRC #0095 (The Grasshoppers)
Team Role: Engineer
 
Join Date: Dec 2004
Rookie Year: 2001
Location: Enfield, NH
Posts: 1,884
JamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond repute
Re: Team 95 2017 Build Thread

Started off with a minor disaster. We had a hex bearing come in with the hex bore not concentric, visibly, with the outer race. Very weird to diagnose.

Moving on... parts! Parts are getting made about as fast as we can stand.



We use a CNC plasma cutter, then sometimes a CNC mill, to make a majority of our components. Then we bend them up on a manual finger brake. Even rookies can get the hang of it quickly!



Practice robot drive base is together. Wiring shall start tomorrow!

__________________
Theory is a nice place, I'd like to go there one day, I hear everything works there.

Maturity is knowing you were an idiot, common sense is trying to not be an idiot, wisdom is knowing that you will still be an idiot.

Last edited by JamesCH95 : 26-01-2017 at 10:14.
Reply With Quote
  #34   Spotlight this post!  
Unread 25-01-2017, 21:36
NShep98's Avatar
NShep98 NShep98 is offline
Registered User
AKA: Nathan Shepherd
FRC #2079 (4H ALARM Robotics)
Team Role: Mechanical
 
Join Date: Oct 2015
Rookie Year: 2015
Location: Franklin, MA
Posts: 247
NShep98 has much to be proud ofNShep98 has much to be proud ofNShep98 has much to be proud ofNShep98 has much to be proud ofNShep98 has much to be proud ofNShep98 has much to be proud ofNShep98 has much to be proud ofNShep98 has much to be proud ofNShep98 has much to be proud of
Re: Team 95 2017 Build Thread

Quote:
Originally Posted by JamesCH95 View Post
Started off with a minor disaster. We had a hex bearing come in with the hex bore not concentric, visibly, with the outer race. Very weird to diagnose.

Moving on... parts! Parts are getting made about as fast as we can stand.

...

We use a CNC plasma cutter, then sometimes a CNC mill, to make a majority of our components. Then we bend them up on a manual finger break. Even rookies can get the hang of it quickly!

...

Practice robot drive base is together. Wiring shall start tomorrow!

...
While those are quite nice close up shots of your robot, I'm not quite sure what I'm looking at in particular.
__________________


FRC 2079 - 4H ALARM Robotics 2015 - 2017

FLL 2011, 2013
Reply With Quote
  #35   Spotlight this post!  
Unread 25-01-2017, 21:41
JamesCH95's Avatar
JamesCH95 JamesCH95 is online now
Hardcore Dork
AKA: JCH
FRC #0095 (The Grasshoppers)
Team Role: Engineer
 
Join Date: Dec 2004
Rookie Year: 2001
Location: Enfield, NH
Posts: 1,884
JamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond repute
Re: Team 95 2017 Build Thread

Quote:
Originally Posted by NShep98 View Post
While those are quite nice close up shots of your robot, I'm not quite sure what I'm looking at in particular.
First shot is an over-all of the parts we've blanked and (some) bent so far. These include nearly all of our gear-handling parts and chassis parts.
Second shot is the belly pan of the robot.
Third is the practice robot's drive base.
__________________
Theory is a nice place, I'd like to go there one day, I hear everything works there.

Maturity is knowing you were an idiot, common sense is trying to not be an idiot, wisdom is knowing that you will still be an idiot.
Reply With Quote
  #36   Spotlight this post!  
Unread 25-01-2017, 21:43
JamesCH95's Avatar
JamesCH95 JamesCH95 is online now
Hardcore Dork
AKA: JCH
FRC #0095 (The Grasshoppers)
Team Role: Engineer
 
Join Date: Dec 2004
Rookie Year: 2001
Location: Enfield, NH
Posts: 1,884
JamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond repute
Re: Team 95 2017 Build Thread

Bonus image.



I've been told that I might have played too much West Point Bridge Designer...
__________________
Theory is a nice place, I'd like to go there one day, I hear everything works there.

Maturity is knowing you were an idiot, common sense is trying to not be an idiot, wisdom is knowing that you will still be an idiot.
Reply With Quote
  #37   Spotlight this post!  
Unread 25-01-2017, 22:19
cadandcookies's Avatar
cadandcookies cadandcookies is online now
Director of Programs, GOFIRST
AKA: Nick Aarestad
FTC #9205 (The Iron Maidens)
Team Role: College Student
 
Join Date: Jan 2012
Rookie Year: 2009
Location: Minnesnowta
Posts: 1,556
cadandcookies has a reputation beyond reputecadandcookies has a reputation beyond reputecadandcookies has a reputation beyond reputecadandcookies has a reputation beyond reputecadandcookies has a reputation beyond reputecadandcookies has a reputation beyond reputecadandcookies has a reputation beyond reputecadandcookies has a reputation beyond reputecadandcookies has a reputation beyond reputecadandcookies has a reputation beyond reputecadandcookies has a reputation beyond repute
Re: Team 95 2017 Build Thread

Quote:
Originally Posted by Sam Skoglund View Post
Should it concern me that your rookie year says 2001 and yet you claim to be the one doing the CAD modeling?
No, it should not concern you.

Quote:
Originally Posted by Sam Skoglund View Post
I though high school students were supposed to do the design work?
Different teams run things in different, equally valid ways. The community would be a better place if people understood that was not only a good thing, but part of what makes FIRST great.
_

James, I might not be working with a team this year, but to echo earlier sentiments this thread is always a highlight. It's been very interesting to see you and your team evolve in design. I'm just sad I've never gotten a chance to see one of your robots in person!
__________________

Never assume the motives of others are, to them, less noble than yours are to you. - John Perry Barlow
tumblr | twitter
'Snow Problem CAD Files: 2015 2016
MN FTC Field Manager, FTA, CSA, Emcee
FLL Maybe NXT Year (09-10) -> FRC 2220 (11-14) -> FTC 9205(14-?)/FRC 2667 (15-16)
VEXU UMN (2015-??)
Volunteer since 2011
2013 RCA Winner (North Star Regional) (2220)
2016 Connect Award Winner (North Super Regional and World Championship) (9205)
Reply With Quote
  #38   Spotlight this post!  
Unread 25-01-2017, 22:59
apm4242 apm4242 is offline
Registered User
FRC #4242
 
Join Date: Jan 2013
Location: United States
Posts: 93
apm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant future
Re: Team 95 2017 Build Thread

Quote:
Originally Posted by JamesCH95 View Post
CAD continues to inch forward as we spool up to start fabrication this week.
This is our first year using vex planetary gearboxes. I see you have mounted one directly to your intake shaft. We never thought to do this. How do they hold up to being mounted like this? Does repeated shaft deflection put undo stress on the gearbox? Any weird loading issues?
Reply With Quote
  #39   Spotlight this post!  
Unread 25-01-2017, 22:59
D_Price's Avatar
D_Price D_Price is offline
Engineer/Mentor
AKA: Derek
FRC #1708 (Amp'd Robotics (formally Natural Selection))
Team Role: Mentor
 
Join Date: Jan 2007
Rookie Year: 2004
Location: McKeesport, Pa
Posts: 443
D_Price has a brilliant futureD_Price has a brilliant futureD_Price has a brilliant futureD_Price has a brilliant futureD_Price has a brilliant futureD_Price has a brilliant futureD_Price has a brilliant futureD_Price has a brilliant futureD_Price has a brilliant futureD_Price has a brilliant futureD_Price has a brilliant future
Re: Team 95 2017 Build Thread

I am with you on this one. Myself and other mentor for the team help out with the design of the robot in Inventor due to the fact that our school hardly teaches 3D modeling to a degree in which the student can have the design done before the robot can be built. Normally after the season we have students design any of Off-season robot that is thought of.

Quote:
Originally Posted by JamesCH95 View Post
Every team runs things differently. FRC does not dictate roles for mentors or students. I happen to do most of the modeling for 95. We shall leave it at that because there are many other threads discussing this particular topic.

Thank you for reading, I'm glad that you enjoy it!
__________________
Team member 2004-2008
Team mentor 2008-20XX

http://team1708.steelcityrobotics.or...tics/Home.html
"Education is a powerful tool. Always use it to better someone else's life"
Reply With Quote
  #40   Spotlight this post!  
Unread 25-01-2017, 23:34
JacobD's Avatar
JacobD JacobD is offline
Registered User
AKA: Jacob
FRC #1672 (Mahwah Robo T-Birds)
Team Role: Leadership
 
Join Date: Jan 2015
Rookie Year: 2013
Location: New Jersey
Posts: 93
JacobD is an unknown quantity at this point
Re: Team 95 2017 Build Thread

Quote:
Originally Posted by D_Price View Post
I am with you on this one. Myself and other mentor for the team help out with the design of the robot in Inventor due to the fact that our school hardly teaches 3D modeling to a degree in which the student can have the design done before the robot can be built. Normally after the season we have students design any of Off-season robot that is thought of.
Makes a lot of sense to me. I taught myself Solidworks for an off-season project which definitely made it easier going into the build season. But, still there are a lot of different things that you need to understand from an engineering perspective that cannot be easily taught to a student who is also balancing a heavy school work load.
__________________
SolidWorks CAD
AutoCAD
Java
Reply With Quote
  #41   Spotlight this post!  
Unread 26-01-2017, 08:24
JamesCH95's Avatar
JamesCH95 JamesCH95 is online now
Hardcore Dork
AKA: JCH
FRC #0095 (The Grasshoppers)
Team Role: Engineer
 
Join Date: Dec 2004
Rookie Year: 2001
Location: Enfield, NH
Posts: 1,884
JamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond reputeJamesCH95 has a reputation beyond repute
Re: Team 95 2017 Build Thread

Quote:
Originally Posted by cadandcookies View Post
James, I might not be working with a team this year, but to echo earlier sentiments this thread is always a highlight. It's been very interesting to see you and your team evolve in design. I'm just sad I've never gotten a chance to see one of your robots in person!
Thanks!

Quote:
Originally Posted by apm4242 View Post
This is our first year using vex planetary gearboxes. I see you have mounted one directly to your intake shaft. We never thought to do this. How do they hold up to being mounted like this? Does repeated shaft deflection put undo stress on the gearbox? Any weird loading issues?
We've used this sort of setup before, but we make sure that the coupling of the output shaft is rigidly coupled to the cross shaft so the transmission output shaft isn't cantilevered.

In general we've found that the VP gearboxes are quite robust if a bit of care is taken in their mounting and assembly. This might mean NOT mounting them super-rigidly to prevent slight mis-alignments from putting a lot of load on the bearing package.

Quote:
Originally Posted by D_Price View Post
I am with you on this one. Myself and other mentor for the team help out with the design of the robot in Inventor due to the fact that our school hardly teaches 3D modeling to a degree in which the student can have the design done before the robot can be built. Normally after the season we have students design any of Off-season robot that is thought of.
Quote:
Originally Posted by JacobD View Post
Makes a lot of sense to me. I taught myself Solidworks for an off-season project which definitely made it easier going into the build season. But, still there are a lot of different things that you need to understand from an engineering perspective that cannot be easily taught to a student who is also balancing a heavy school work load.
We do teach CAD in the offseason so that our kids are familiar with how it operates and what problems it can be used to solve. However, we've found it to be remarkably more fun and productive for the students to make prototype and mock-up subsystems while I turn their discoveries into something manufacturable.

We also use CAD heavily. Cardboard Aided Design. Which is considerably more accessible and intuitive to most students than the other CAD. It plays into our sheet-metal-heavy design repertoire nicely.
__________________
Theory is a nice place, I'd like to go there one day, I hear everything works there.

Maturity is knowing you were an idiot, common sense is trying to not be an idiot, wisdom is knowing that you will still be an idiot.
Reply With Quote
  #42   Spotlight this post!  
Unread 26-01-2017, 11:11
Fields's Avatar
Fields Fields is offline
Classic
no team
Team Role: Engineer
 
Join Date: Dec 2014
Rookie Year: 2015
Location: Minneapolis
Posts: 118
Fields is a name known to allFields is a name known to allFields is a name known to allFields is a name known to allFields is a name known to allFields is a name known to all
Re: Team 95 2017 Build Thread

Quote:
Originally Posted by JamesCH95 View Post
We do teach CAD in the offseason so that our kids are familiar with how it operates and what problems it can be used to solve. However, we've found it to be remarkably more fun and productive for the students to make prototype and mock-up subsystems while I turn their discoveries into something manufacturable.

We also use CAD heavily. Cardboard Aided Design. Which is considerably more accessible and intuitive to most students than the other CAD. It plays into our sheet-metal-heavy design repertoire nicely.
I totally agree with this.

I'm still trying to balance how much is healthy for students to be hands off and how much are mentors having fun and using "teaching experience" for just doing what they want.

Having 15+ years in various CAD environments, I know the time involved when you get down to the small details of a design that's never been built. Companies spend months to years designing something this complex and we give the students 6 weeks.
Key question for myself is "Am I doing this to help them learn or because I want to win?".
__________________
Wait... you built what now?
Reply With Quote
  #43   Spotlight this post!  
Unread 26-01-2017, 11:30
apm4242 apm4242 is offline
Registered User
FRC #4242
 
Join Date: Jan 2013
Location: United States
Posts: 93
apm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant futureapm4242 has a brilliant future
Re: Team 95 2017 Build Thread

This is a good thread. Team 95 is nice enough to share their designs and progress every year. They are willing to help other teams (like mine) by answering questions. Can we please stop talking about the mentor-student involvement dead horse here. If everyone continues to chime in about this, the thread will devolve because EVERYONE has an opinion about this. It will cease to be helpful.

If you want to talk about this more, please please start a new thread or go to the countless other threads on this topic. Please don't respond to this message.
Reply With Quote
  #44   Spotlight this post!  
Unread 26-01-2017, 13:51
BrendanB BrendanB is offline
Registered User
AKA: Brendan Browne
FRC #1058 (PVC Pirates)
Team Role: Mentor
 
Join Date: Feb 2008
Rookie Year: 2003
Location: Londonderry, NH
Posts: 3,104
BrendanB has a reputation beyond reputeBrendanB has a reputation beyond reputeBrendanB has a reputation beyond reputeBrendanB has a reputation beyond reputeBrendanB has a reputation beyond reputeBrendanB has a reputation beyond reputeBrendanB has a reputation beyond reputeBrendanB has a reputation beyond reputeBrendanB has a reputation beyond reputeBrendanB has a reputation beyond reputeBrendanB has a reputation beyond repute
Re: Team 95 2017 Build Thread

Looking good James!

What I love most about these threads is you see how 95 has developed while iterating their own ways of building their robot(s).

Can't wait to see it!
__________________
1519 Mechanical M.A.Y.H.E.M. 2008 - 2010
3467 Windham Windup 2011 - 2015
1058 PVC Pirates 2016 - xxxx
Reply With Quote
  #45   Spotlight this post!  
Unread 26-01-2017, 14:39
pmangels17's Avatar
pmangels17 pmangels17 is offline
Mechanical Marauders - Alumnus
AKA: Paul Mangels
FRC #0271 (Mechanical Marauders)
Team Role: Mechanical
 
Join Date: Jan 2012
Rookie Year: 2011
Location: Bay Shore, NY
Posts: 405
pmangels17 has a reputation beyond reputepmangels17 has a reputation beyond reputepmangels17 has a reputation beyond reputepmangels17 has a reputation beyond reputepmangels17 has a reputation beyond reputepmangels17 has a reputation beyond reputepmangels17 has a reputation beyond reputepmangels17 has a reputation beyond reputepmangels17 has a reputation beyond reputepmangels17 has a reputation beyond reputepmangels17 has a reputation beyond repute
Re: Team 95 2017 Build Thread

Quick question, are those bolts-with-washers on your drive axles to hold the bearings in place in the side plates? And are you using flanged or non-flanged bearings in the drive?
__________________
Junior at the University of Notre Dame, Mechanical Engineering

Got questions (about Notre Dame, robots, college, etc), don't hesitate to ask.

**Bang Boom Pop!** "Was that the robot?" "I don't know, do it again"
**BANG BOOM POP** "Oh, now it's on fire."
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 13:44.

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


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi