OCCRA
Go to Post IRI seeks to invite the very best robots to play the FIRST game, achieving the highest level of play, while keeping in place the FIRST atmosphere. - Nathan Streeter [more]
Home
Go Back   Chief Delphi > FIRST > General Forum
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Reply
Thread Tools Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 11-14-2017, 12:25 AM
RobotsQ's Avatar
RobotsQ RobotsQ is offline
Registered User
FRC #1155
 
Join Date: Jan 2017
Location: New York City
Posts: 23
RobotsQ is an unknown quantity at this point
Tools/Parts for Rapid Prototyping?

I've been inspired by looking at other teams to really step up our prototyping game, not in terms of quantity of ideas prototyped but in terms of the quality of the few we choose. I would want higher quality prototypes to get a better idea of how such a design would function on a real robot, but we still don't want to spend so much time on prototypes that our main bot suffers.

Are there any tools or parts that have helped you prototype effectively? Really just trying to get away from pieces of aluminum duct taped to plywood (as we're an embarrassing number of our prototypes last year). I'd appreciate the help!
Reply With Quote
  #2   Spotlight this post!  
Unread 11-14-2017, 12:31 AM
Adnewhouse's Avatar
Adnewhouse Adnewhouse is offline
Registered User
FRC #0639
Team Role: College Student
 
Join Date: Jun 2013
Rookie Year: 2012
Location: Ithaca, NY
Posts: 58
Adnewhouse is an unknown quantity at this point
Re: Tools/Parts for Rapid Prototyping?

Laser cutter. Laser cut plywood prototypes work really well and take just minutes to cut out. You can design them so they just snap together.
Reply With Quote
  #3   Spotlight this post!  
Unread 11-14-2017, 10:26 AM
Ryan1625 Ryan1625 is offline
Registered User
FRC #1625
 
Join Date: Feb 2017
Location: USA
Posts: 2
Ryan1625 is an unknown quantity at this point
Re: Tools/Parts for Rapid Prototyping?

The single reduction clamping gearboxes on Vexpro and also the sliding motor mounts also on vexpro allowed us to make a mock intake within 3 hours. Preformed the exact same
Reply With Quote
  #4   Spotlight this post!  
Unread 11-14-2017, 11:13 AM
bobbysq bobbysq is offline
Registered User
FRC #4646 (Team ASAP)
Team Role: Alumni
 
Join Date: Apr 2016
Rookie Year: 2015
Location: Des Moines, IA
Posts: 616
bobbysq has a reputation beyond reputebobbysq has a reputation beyond reputebobbysq has a reputation beyond reputebobbysq has a reputation beyond reputebobbysq has a reputation beyond reputebobbysq has a reputation beyond reputebobbysq has a reputation beyond reputebobbysq has a reputation beyond reputebobbysq has a reputation beyond reputebobbysq has a reputation beyond reputebobbysq has a reputation beyond repute
Re: Tools/Parts for Rapid Prototyping?

An Arduino set up with the servo library and a potentiometer can go a long way when testing prototypes, since you can then hook up a motor controller and test motors at different speeds.
Reply With Quote
  #5   Spotlight this post!  
Unread 11-14-2017, 12:06 PM
CalTran's Avatar
CalTran CalTran is online now
MST Rolla Senior
FRC #2410 (BV CAPS Metal Mustang Robotics)
Team Role: College Student
 
Join Date: Apr 2010
Rookie Year: 2010
Location: Overland Park, Kansas
Posts: 2,701
CalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond repute
Re: Tools/Parts for Rapid Prototyping?

Variety of VersaPlanetary stages are great; especially since you begin to stockpile them over the years.


Quote:
Originally Posted by bobbysq View Post
An Arduino set up with the servo library and a potentiometer can go a long way when testing prototypes, since you can then hook up a motor controller and test motors at different speeds.
There might be a white paper or two running around on the subject, but if you have any old or cheap drills, tearing out the "head" and replacing it with quick connects so you can gun it also works in a pinch.
__________________
Team 2410 thinks KISSing is amazing! Keep It Super Safe!
  • "You know you've been in robotics too long when you start talking to your tools." "Well, you've been in robotics CLEARLY too long when they start talking back"
  • Theory is when you know everything but nothing works. Practice is when everything works but you don't know why. On our team, theory and practice comes together - nothing works and nobody knows why.
MMR 2410 Student (2010 - 2013) | MMR 2410 Mentor (2013 - Present)
FTC Game Announcer / MC (2014 - Present) | FRC MC (2015 - Present) | FRC Referee (2016) | FTC Referee (2017) | VEX IQ MC (2017) | FRC A/V (2017)
Academic Student (Forever)
Reply With Quote
  #6   Spotlight this post!  
Unread 11-14-2017, 12:11 PM
SpruceyBrucey's Avatar
SpruceyBrucey SpruceyBrucey is offline
Registered User
FRC #0885 (Bruce Force Trauma)
 
Join Date: May 2017
Rookie Year: 2015
Location: Vermont
Posts: 29
SpruceyBrucey is an unknown quantity at this point
Re: Tools/Parts for Rapid Prototyping?

Quote:
Originally Posted by bobbysq View Post
An Arduino set up with the servo library and a potentiometer can go a long way when testing prototypes, since you can then hook up a motor controller and test motors at different speeds.
Couldn't recommend something like this more, they are a GIGANTIC help when testing and prototyping.
Reply With Quote
  #7   Spotlight this post!  
Unread 11-14-2017, 04:02 PM
MonroeM MonroeM is offline
Registered User
FRC #3570
Team Role: College Student
 
Join Date: Jul 2016
Rookie Year: 2015
Location: Alma, MI
Posts: 28
MonroeM is an unknown quantity at this point
Re: Tools/Parts for Rapid Prototyping?

Get a bucket of clamps:

C-Clamps
F-Clamps
Quick Grip Clamps
Kant-Twist Clamps (my personal favorite are the 9 inchers)

I can't express enough how much help clamps are for prototyping the robot. We often build our shooter on the bench with lots of clamps to allow for maximal adjustability and then clamp that prototype to the robot chassis.
Reply With Quote
  #8   Spotlight this post!  
Unread 11-14-2017, 05:42 PM
Lil' Lavery Lil' Lavery is offline
TSIMFD
AKA: Sean Lavery
FRC #1712 (DAWGMA)
Team Role: Mentor
 
Join Date: Nov 2003
Rookie Year: 2003
Location: Philadelphia, PA
Posts: 7,097
Lil' Lavery has a reputation beyond reputeLil' Lavery has a reputation beyond reputeLil' Lavery has a reputation beyond reputeLil' Lavery has a reputation beyond reputeLil' Lavery has a reputation beyond reputeLil' Lavery has a reputation beyond reputeLil' Lavery has a reputation beyond reputeLil' Lavery has a reputation beyond reputeLil' Lavery has a reputation beyond reputeLil' Lavery has a reputation beyond reputeLil' Lavery has a reputation beyond repute
Send a message via AIM to Lil' Lavery
Re: Tools/Parts for Rapid Prototyping?

Pillow block bearings are great for throwing together quick prototypes made from wood or 80/20.
__________________
Being correct doesn't mean you don't have to explain yourself.
Reply With Quote
  #9   Spotlight this post!  
Unread 11-14-2017, 05:54 PM
Nuttyman54's Avatar
Nuttyman54 Nuttyman54 is offline
Mentor, Tactician
AKA: Evan "Numbers" Morrison
FRC #5803 (Apex Robotics) and FRC #0971 (Spartan Robotics)
Team Role: Mentor
 
Join Date: Jan 2005
Rookie Year: 2005
Location: Seattle, WA/Mountain View, CA
Posts: 2,228
Nuttyman54 has a reputation beyond reputeNuttyman54 has a reputation beyond reputeNuttyman54 has a reputation beyond reputeNuttyman54 has a reputation beyond reputeNuttyman54 has a reputation beyond reputeNuttyman54 has a reputation beyond reputeNuttyman54 has a reputation beyond reputeNuttyman54 has a reputation beyond reputeNuttyman54 has a reputation beyond reputeNuttyman54 has a reputation beyond reputeNuttyman54 has a reputation beyond repute
Send a message via AIM to Nuttyman54
Re: Tools/Parts for Rapid Prototyping?

The growing 1/2" hex ecosystem is a great benefit to prototyping. We normally stock up on 1/2" hex or Thunderhex pre-season, and have accumulated over the last two years a large variety of wheels/belts/pulleys/sprockets that interface with it. We do most of our prototyping in wood, but the ability to hook up shafts, bearings and motors quickly is invaluable. We use pretty much all of it (and more) during the season on our robots after prototyping so we're not really spending "extra" money on prototyping materials.

In general, our early prototypes are 2x4's and 3/4" plywood with 1-1/8" holes drilled in them with a hole saw to seat hex bearings, and either a Versaplanetary, a CIM with a 1/2" hex adapter or a drill with a 1/2" socket driving some kind of shaft. The VexPro Versaplanetary Face Mount plate (217-3627) are great for attaching CIM's or VP's to a prototype with wood screws.

We also keep a stock of scrap 1/16" and 1/8" polycarb, various traction materials and surgical tubing to augment the prototypes.

We occasionally do a higher fidelity prototype to validate a complex/integrated design before we commit to it on the robot. For that we use mostly the Versaframe gussets with the above 1/2" hex stuff, and 1/16" wall box tubing (Versaframe box tubing is great, but it's pricier so we save that for the real robots). Here's an example of our fuel feed system prototype from 2017: https://goo.gl/photos/bFtgiqWer4YpVgp46
__________________

Last edited by Nuttyman54 : 11-14-2017 at 06:02 PM.
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 01:06 AM.

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