LEVi Rover Modular Robot 3D Print

jstarne1

USA
#1  
These are not all the sketches just bits a pieces. I have gone through 3 versions of the concept making it a little better, more practical and functional each time. Of course, anyone is welcome to weigh in with suggestions. The general idea with this concept is to have accessories that can be printed and attached , like for example a weed eating attachment and lawn mower. That is just an initial use , but I would like to come up with even more attachable accessories for this guy. Once I have several accessories available, I will also develop a similar but possibly smaller version dedicated to education. My idea is to put these up for sale and for every full sized kit, giving a special educational package to a local school.

Ideas for play and educational attachments are welcome.
#2   — Edited
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Original POST:
Here are some updated renders, I have a talented 3D artist working on options for single piece tracks and tires at this time. I don't like this version of the tracks and tire because it is so thin. I feel it needs to be at least twice as thick so we are back to the drawing board on those. , but I was able to get some different views of the 3d model progress. :)User-inserted image

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#59  
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The halo ring leds came in, the plan is the put the main led in a circuit to dim off and back on to simulate eyes blinking and the blue ring will just stay on. I can tell joe I will need to reduce the voltage because they are so bright!

This robot is primarily intended for use outdoors so that really is not a problem.
#60  
Here are the lighting options I ordered from Amazon. I am leaning towards blue or blue/white mix for the front and rear. I would like to have the option for red or amber to blink when a tool is in operation and for safety lighting as well. So I grabbed a roll of each color.User-inserted image
#61  
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I’m working on some alternative options for WiFi antennas. The covers look ridiculous once they are enlarged enough to fit the 5dbi antennas. So I am looking at a smaller and slimmer approach and did a basic mod of the current setup and removed the bunny ears. What do you guys think?
Synthiam
#62  
Yeah I like the antennas, it makes the robot look more bug like!
#63  
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I had a couple big prints fail on robo3d r1 plus and clog after many hours, I believe I found the culprit. The thermister lead was broken off. I ordered a replacement part and it arrived last night ( thanks amazon). I believe I will replace the heater core , extruder and such as well to be proactive. The whole extruder assembly with all the sensors , heater, wire and nozzle was 30 dollars shipped. I suppose I will get that in this evening to get back printing.
#64  
I installed the new extruder but it is not jiving with the controller and still gives a low temp error. I don’t have enough time to mess with it as I am down to two classes and till the end of the month to finish them. Phew! I did get 4 Ender 3 printers and bought 4 400mm x 400mm ext kits from enderextender.com  to do larger prints.  I. Sold most my BB8 robots to pay for them. And I found some of the BB8s do  not have their antennas. So I am using the good antennas, making a two piece silicon mold and casting new ones for the buyers. I have never tried casting parts this thin, so it is new to me, but I will walk through what I have done so far.
#65   — Edited
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step one, make a box or edge barrier for your box. Use something disposable and easy to remove once the silicon sets.

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step two, work slowly adding clay around the perimeter pushing it into corners and packing it down.

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step three, continue adding bits of clay to make a level bed to work with

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gently press in the first part and push the clay up against the edge of the part

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press in the second part and add registry marks for perfect alignment between the two halves of the mold.

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gently take a sharp tool and go around the parts edge to make a clean edge.



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the parts are very thin and bubbles likely cannot rise to the top. I do not have a vacuum chamber on hand so this mold will need a large air vent. In addition I have syringes to gently force the resin down into the mold

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I used alumilite silicone rubber that cures in around 12-18 hours fully. This represents a 2 ounce liquid pour. I may make the other half thicker around 3-4 ounces for dimensional stability.
#66  
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Hello all, I am up later tonight and took some time to cast some BB8 Hero droid antennas.

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injection molding at home with two part resinoid. Pot life 2 minutes, Demold in 5 -10 minutes
#67  
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Parts cut out, I will leave these alone until morning, they will still be soft for a while because they do not heat up to full temp when they are so thin. If this was a larger chunk it would be a rock already like the left overs in the bottom of the plastic container

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#68  
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Copies next morning after flashing has been trimmed
#69  
The replacements get a bit of black paint User-inserted image
#70  
I used to do a lot of casting for modeling work so I really appreciate your efforts. It can be a science and an art.
Maybe subliminal but I really want sushi now.
#72   — Edited
Edited:
Tried to delete and it will not let me, had to put something here!!
Sorry!
#76  
Good news by the way, I managed to sell the two Omnibot 2000 toys and 5 of the BB8 Hero toys to raise money for this project. I was able to get 4 Ender 3 printers initially, but I just ordered another 2. Also I got with a guy at enderextender.com and he was kind enough to offer a bit of a discount and some things even at his cost to extend the Ender 3 print volume up to 400 mm x 400mm x 500mm. He is only sending 4 of those kids, so two of the ender 3 printers are going to be normal sized. The Robo 3d printers are both out of commision as they are throwing a thermister cooling error even after swapping the hot end. I dont have time to really figure that one out, so they are on the back burner till this semester is over and finals are taken. I have not given up on the Folgertech 6, but I simply dont have time to get a printer going without help from the manufacturer , so that is on the back burner for the rest of the school semester as well.
#77  
https://www.thingiverse.com/thing:4031686

The LEVi Rover 3D print files have been uploaded to the thingiverse repository! I hope a few of you do the honors of downloading and enjoying printing this guy. Come along on the adventure of building, modding and designing accessories for LEVi. What will you do with yours?
#78   — Edited
All of the pieces for the body thus far have been sliced into sections small enough to print on a makerbot bed ( 6 x 6 inch wide beds) all files were uploaded to both the Facebook Group and the Thingiverse as well!