Tri-Polar Bot Concept -- Meet Wally

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cozmicray
Did all you guys get a deal on AUTOCAD or are just lottery winners?
Got a URL for free Inventor --- I will move from my Mac to my Win machine.

I got Inventor the first 6 months free through TechShop, after taking the free class there. When that expired, the AutoCad rep said it was OK for me to be a "student" (I'm retired). I have the impression that anyone who is just a hobbyist is allowed to be a "student." You get access to essentially all their software packages, but all your files are marked so that they can't be used commercially. I don't think you can move a design from the student environment to a commercial environment, so if you decide to start a company you have to start from scratch with their commercial packages to get rid of the telltale labeling.
I run Inventor on a Mac under Parallels v9, Windows 8.1, Mac OS X.9 Maverick. Works better than it did in previous versions, I think.

As you guys have noticed, this thread is getting out of hand and will just get worse once a lot of people start making Wallys. For those that are building, I suggest that we move the party.

http://forum.conceptforge.org/

I posted a bounty for Wally's documentation. I am working on it anyways but a little extra money will definitely help in the motivation department.

What does this mean?
We get instructions if we pay a bounty?
or
Is this just contribution to the effort?

Does this violate "Open source" ?

Does one get a reward for building Wally without instructions?

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nicholas.seward
I posted a bounty for Wally's documentation. I am working on it anyways but a little extra money will definitely help in the motivation department.

Quote
cozmicray
What does this mean?
We get instructions if we pay a bounty?
or
Is this just contribution to the effort?

Does this violate "Open source" ?

Does one get a reward for building Wally without instructions?

Meaning: This is a way to give a donation with strings attached.

Everyone gets instruction whether you pay or not.

Files will still be GPL so they are still open souce.

Your reward for building a Wally without instructions is a more complete understanding of the universe.

Quote
nicholas.seward

Your reward for building a Wally without instructions is a more complete understanding of the universe.

Hahahaha. You 're right

Something bright to cheer people up on a Friday night!

Quote
nicholas.seward
Something bright to cheer people up on a Friday night!

Lots of Wally!!!

Looks great, I love the mix of colors and that purple looks pretty cool!

Nicholas! You don't sleep never? So much works made. and still children, they at you are unique!
It seems to me that any color will badly look, if it one. contrast is necessary. for example - plastic lilac, and the case green or as to you will run, but colors have to be different.
I think that it is the most interesting and successful your design, today.
I hope that in these days off my Wally, will work.
How many printers work at the same time for Wally press? how many in general works? And what?

Edited 5 time(s). Last edit at 12/14/2013 09:13AM by Vladimir_Lukashuk.

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nicholas.seward
[attachment 22949 wallyparts.jpg]

Something bright to cheer people up on a Friday night!

I would to buy it...

Quote
nicholas.seward
[attachment 22949 wallyparts.jpg]

Something bright to cheer people up on a Friday night!

I'm impressed by the quality, they look like injection molded parts!

Yes, great looking parts. Are they all spoken for?

@dpharris: They are spoken for and then some. Sorry!

Accept in a family?!

I don't know how to insert the picture into the text.

@Vladimir_Lukashuk: Beautiful! I haven't fogot you. This is just the busiest time of year. I will be working out some detailed instructions on how to operate the machine over the next several weeks. Again, beautiful!

It isn't beautiful. It works! It is important!

I'll soon be getting a printer with an 8x8x7 inch work volume. Will the Wally parts fit in that space?

Wally
Build Area: 150 x 150mm or 200mm circle
[reprap.org]

I wasn't asking about Wally's build area. I was asking if an 8x8x7 inch work area would be big enough to print out Wally parts on.

Specifications:
largest part 175mm (6.89" inches)
[reprap.org]

Thank you.

Here's Wally Chrome (Chrome spray paint on boards)






Black forearm reprint to get beter internal threads

Freaduino Mega 2560, RAMPS (all to be replaced --- real pain)
Arduino Mega 2560, New RAMPS
30A 12V power supply
Square hard PC Bed Heater
Airtripper extruder (1.75mm)
Hotend not in yet

Have been using Macbook, Repetire-Host, Marlin

Real hassel with electronics

Anyone out there building a Wally with a RAMPS 1.4 electronics?

running on PC with Win XP-64
Replaced Freaduino
with genuine Arduino Mega 2560
and different RAMPS board and Polulu drivers

all functions work X,Y,Z, extruder motors, bed heater, Bed temp, Extruder heater, extruder temp

Need some help setting Marlin and Repetier-Host.

my (set in Marlin config.h)
X 8 steps/mm
Y 8 steps/mm
Z 166 steps/mm
E 100 steps/mm

Wally on "Home Z" pulls bed up 110mm
after about 30 sec Z-motor disables and bed drops

If I home Z and then move bed up/down
then Home again home position is forgotten and Z pulls table up 110mm
(breaking the string)
Motor stop doesn't work on Z-Axis? (must use emergency stop)

X and Y move but can't correlate to R-H commands
best I can see is R-H commands are like deg of rotation of big pulley?

Scratchin all my hair off trying to figure out!
changing marlin code/config and R-H parameters.

A few of us have made suggestions along the Wally development that a linear Z axes motion would be desirable and perhaps it could even be simpler. I will start a new thread for brainstorming about alternative Wally Z axis designs.

Wally Chrome done? but not fully working?

5 ply birchply painted chrome
Arduino mega 2560 and RAMPS 1.4
Hard PC bed heater and glass surface
J-Head hotend 1.75mm Airtripper extruder
white PVC extender to make it as long as Ubis
Repertier Firmware Repetier-Host SW on XP 64 PC

Only goes up 133mm Z-pulley and extruder limit
Have NOT got firmware / software parameters set up right yet
Loses knowledge of home and doesn't go all over table
Python -- errors out with 133 height







Waiting for help to catch up

More good progress!

Made a better filament drive! About time.



I added an optional mount for a guitar tuner. Love it!



I made a new arm with a kossel compatible mounting ring. You can now use all the accessories for kossel on a Wally. Fan mounts. Auto level probes.



I finished my first draft on Wally's new segmentize. It seems to address all the problem areas. It makes calibration easier. It scales speed correctly. (Thanks Charles Steinkuehler for the speed fixes!) It does bed leveling. It does bed arc adjustment. The one problem is it slower than molasses. I can fix that. (The problem is that I have the inverse kinematics but not the forward kinematics. This is needed to some calibration. My bandaid solution is to get from the machine coordinates to the reference coordinates using numerical techniques.)



There is one band around the middle. I am not sure what the cause is. It could just be a bad value in the calibration table. If other prints have the same band then that will be confirmation for that theory. Other than that, the surface quality is top notch and the retract settings left little to clean up. (At this point it is leaving less to clean up then my Printrbot. I think I have a slight blockage.)



Wally squirrel on the left and LISA squirrel (LISA Simpson) on the right. Pretty dang close if I do say so myself.



20.6mm x 19.6mm x 19.8mm
The height is within the layer height so I am good there. The test cube printed about 7.5mm from the location I expected so I have a lead on getting this fixed.

Now, I plan on getting a fresh computer and doing video documentation of the following.

*Loading firmware
*Setting up the host
*Calibration
*STL to print workflow

Exciting times. GUS and Wally and getting pretty close to being able to print their own parts.

There are more detailed posts and individual build logs for Wally, LISA, and GUS at http://forum.conceptforge.org/

Edited 1 time(s). Last edit at 01/24/2014 10:14PM by nicholas.seward.

That guitar tuner thing looks familiar ;-)

[www.printrbottalk.com]

@DonaldJ: And they are on GUS also.

---

ConceptFORGE
Wally, GUS Simpson, LISA Simpson, THOR Simpson, Sextupteron, CoreXZ

Obviously an idea whose time has come.

Must be something in the air.

Wally Chrome prints
something that looks like a real print



Ride along with Wally see the movie at

[www.youtube.com]