www.robowars.org

RoboWars Australia Forum Index -> Off-Topic

RepRap
Goto page 1, 2, 3, 4, 5, 6, 7  Next

Post new topic   Reply to topic
  Author    Thread
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  
RepRap

So I decoded it might be time to give my RepRap its own thread.

I am waiting on printed parts from Triffid so here is my pile of parts ready to go.




Parts:
T5 belt: AusXmods.com.au
Steppers: AusXmods.com.au
Electronics: Techzone salvaged ones. (Not recommended)
Stainless Rod: allthingsstainless.com.au
Threaded Rod + Nuts: Bolts.com.au
Lm8uu bearings: Ebay or VBX

Hopefully I will have everything back up and running in a week.

Steve
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Sun Feb 05, 2012 2:01 pm 
 View user's profile Send private message Send e-mail MSN Messenger
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

Interestingly they have finally released the printRbot files.

http://www.thingiverse.com/thing:16990

Steve
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Mon Feb 06, 2012 11:00 am 
 View user's profile Send private message Send e-mail MSN Messenger
Knightrous
Site Admin


Joined: 15 Jun 2004
Posts: 8511
Location: NSW


 Reply with quote  

quote:
Originally posted by marto:
Interestingly they have finally released the printRbot files.

http://www.thingiverse.com/thing:16990

Steve


I have cash waiting for whoever can print me the parts for a printRbot...
_________________
Team Knightrous

Post Mon Feb 06, 2012 3:39 pm 
 View user's profile Send private message
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

I may print one to play with then sell it on if you are interested?

Probably more along these lines http://reprap.org/wiki/Wallace

I think the top bar is a good idea.

Steve
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Mon Feb 06, 2012 3:40 pm 
 View user's profile Send private message Send e-mail MSN Messenger
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

Well parts came @ 6 the sarv and new RepRap is nearly assembled.

Woot, pictures soon.
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Tue Feb 14, 2012 12:59 am 
 View user's profile Send private message Send e-mail MSN Messenger
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

So here it is in its current state.



Found this http://www.thingiverse.com/image:63229 which was a bit of an aha moment. So I can actually assemble that tomorrow.

It needs belts connected, end stops wired up, one of the stepper motor's wires extended and the bed mounted.

Planned upgrades are better electronics & a heated bed but need to get his up and running first.
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Tue Feb 14, 2012 1:45 am 
 View user's profile Send private message Send e-mail MSN Messenger
Daniel
Experienced Roboteer


Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast


 Reply with quote  

Is the strength of your printed parts simalar in the Z axis as it is in the X and Y axis? I mean does it shear easily between the layers? I'm still thinking about your printed kitbots.

Post Tue Feb 14, 2012 8:56 am 
 View user's profile Send private message Send e-mail
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

It doesn't appear to shear easily, Obviously the strength is reduced in that plane but it seems the weakest part of the parts is the plastic itself which is quite brittle when cold. Not sure if this will be an issue at the scale of antweights. I was hoping aaron would be there last weekend so I coudl find out. I still think its more than feasible.

Oh and as far as overhangs goes



Steve
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Tue Feb 14, 2012 11:56 am 
 View user's profile Send private message Send e-mail MSN Messenger
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

Finally got it done. Small electronics fire from short on 5V but still appears to work...

Hopefully get some test parts printed tomorrow.

Steve
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Thu Feb 16, 2012 2:26 am 
 View user's profile Send private message Send e-mail MSN Messenger
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

I have concluded that attempting to write while feeling like crap is unproductive and have spent an hour or two today getting 3D printer working.

All seems to be going well except for me being lazy and still not getting a good bed for it. However printed a few bits and pieces looks so much better. And probably took 6/7hrs from parts to printing.

Few things to go in particular my threaded rod is a little bent so I get about 0.25mm wobble which you can see on the outside of the parts.

But still pretty happy.
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Thu Feb 16, 2012 10:13 pm 
 View user's profile Send private message Send e-mail MSN Messenger
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

3D printing is awesome.....
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Tue Feb 21, 2012 12:45 am 
 View user's profile Send private message Send e-mail MSN Messenger
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

I could probably sit here and watch this thing all night be here is some pictures of the working setup.



_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Tue Feb 21, 2012 12:59 am 
 View user's profile Send private message Send e-mail MSN Messenger
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

Played a bit more tonight. I tightened the crap out of my belts hoping to reduce the backlash I am seeing unfortunately made little difference.

Now just had a 3am AHA moment as to why there is still so much backlash. I think my zip ties holding in the lm8uu bearings have come loose. So I shall tighten those tomorrow and see how it goes.

Still having lots of issues with first layer and getting it to stick reliably. Heated bed will help or I will have to go grab some blue painters tape.

Steve
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Wed Feb 22, 2012 3:20 am 
 View user's profile Send private message Send e-mail MSN Messenger
Knightrous
Site Admin


Joined: 15 Jun 2004
Posts: 8511
Location: NSW


 Reply with quote  

Why are you using zipties to hold bearings in place for a precision CNC device >.>
_________________
Team Knightrous

Post Wed Feb 22, 2012 8:20 am 
 View user's profile Send private message
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

Well no printRbot for you.

I could say the same thing about the 8mm rods as structural items, threaded rod as lead screws and printed plastic parts for assembly.

Its all a trade off. If that makerslide one is reasonable price I am defs going to be tempted to buy it.

Steve
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Wed Feb 22, 2012 12:12 pm 
 View user's profile Send private message Send e-mail MSN Messenger
  Display posts from previous:      

Forum Jump:
Jump to:  

Post new topic   Reply to topic
Page 1 of 7

Goto page 1, 2, 3, 4, 5, 6, 7  Next

Forum Rules:
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

 

Last Thread | Next Thread  >
Powered by phpBB: © 2001 phpBB Group
millenniumFalcon Template By Vereor.