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Giant sized Lego Go-Kart kit (1972)

by mantisrobot, published

Giant sized Lego Go-Kart kit (1972) by mantisrobot Oct 17, 2017

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Summary

My files for the Giant building block version of Lego Technic model Go-Kart 1972

Files are provided as-is.

Updated 06/11/17: A couple of STL parts were exported incorrectly, These were in the "RED STL PARTS.zip" and "GREY STL Other Parts.zip" files that have now been updated.

STL Files at 1:1 scale, these files have been designed to be scaled five times larger and may work at other scales. Many of the parts are generated from the supplied SCAD files. These SCAD files were my tweaked versions of projunk files. I added fillets to the top of the pins and altered some dimensions / tolerances. Original projunk files can be found here:

https://www.thingiverse.com/projunk/designs

The STL files are zipped up into their various colours. There is a PDF document containing the required quantity of each part. For more information on the original kit and build instructions visit here:

https://www.toysperiod.com/lego-set-reference/technic/model/race/lego-1972-go-cart/

Print Settings

Printer Brand:

LulzBot

Printer:

TAZ 6

Rafts:

No

Resolution:

0.4mm

Infill:

Varous


Notes:

Most bricks are printed at 15 to 20% infill.
Axles are printed at 50% infill
Gears and pins at 25% infill
Tyres at 20% infill

Watch the build video for more details on print process.
https://youtu.be/jDz1jJxER-I

How I Designed This

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What brand Grey PLA are you using? It's just the perfect Lego Grey color is why I ask. Awesome build!

Hats off to you sir, this is truly awesome !!!

I FOUND ERROR IN RED_PART NO: 4275A AND 4276A. CAN NOT PRINT OR FIX. CAN YOU SEND REVISE?

Hi, I don't see a problem in my slicer software, and others have printed these successfully?

i am new to 3d printing, but this is such a cool project. so i got a TAZ6 but when i print the plates the result is what u see in the pic. i am using PLA 1.75mm and the default nozzle that came with the TAZ 6. i tried X5 and then X3 the results are the same. any help. Thanks

Hi. What material are you printing in? What temperature is your print bed, what temperature is the hot end? What speed? Are you using Cura?

Material PLA. Print bed temp 85. hot end temp 230. speed default speed of taz6 i think its 50. Yes using CURA. Thanks Matt.

Well PLA varies but I’ve never gone above 220hot end, 60bed. Try using Cura and one of their PLA profiles, also add a brim of at least 5 perimeters to help adhesion. I presume the print moved on the bed?

YES THE PRINT MOVED ON THE BED.....:).. i will try your suggestions today and post....thanks again matt...

Not sure why your shouting :O... anyway if the part is not sticking well you may need to adjust your Z offset, I have had to do this on both my Taz6 printers as I found the nozzle was too far away from the bed after auto calibration. on the LCD screen.. Configuration -> Advanced Settings -> Z Offset

hi matt,

:) i didnt realize caps was on...my bad... but anyways so dumb me i did not even realize i had ABS and not PLA. so i downloaded CURA profile for ABS and added a brim of 5mm. also my nozzle was so messed up with all the melted plastic i removed it and cleaned it. i am shooting for another print now. will let u know in a few. but u r vey kind to help out. thanks bud.

hi matt pretty good now. see the pics. 2 small issues i have run into are, the adhesion is super good now when i pry the model out 2 of the parts in the back broke off. see the pics please. can i reduce the brim to a 1 or 2. and whats the best way to clean the brim of the model. thanks a lot for all your help. best regards,

Hi. So your printing in ABS? If so you might have any to raise your hot end temperature as it may be a layer binding issue! Also I use Sinplify3D to slice my models, it only puts the brim on the outer edges of the model, so I can see why it might be an issue here... try reducing the brim, I snap most of mine off then clean up with the edge of a steel Rilee or carefully with a knife.. wear gloves!!

thanks matt simplify 3d is awesome. i am getting somewhere. thanks again for all the help.

Wow! Impressive! I really love to make one!
I've got some experience with ninja-flex but its a bad one. Could you tell me the config that you used? And witch program you used for the slicing?

Anyone else having issues with scale? Some of them are so tiny even at 10,000% they are still super small.

Hi, I found three parts that had been exported incorrectly, tow red parts and a grey part. I have updated the files RED_STL_PARTS.zip and GREY_STL_Other_Parts.zip

Matt.

Let’s me know which part and I’ll check it. Parts should be exported in mm.

Fast response! Thanks! Just went through the new files. These ones have scaling issues.

Gray Parts:
4261 - Steering ARm
3959 P1
3959 P2
3937 Hinge Brick
3938 Axle
3938 Body
3938 PIP
3974 Pin
3974 Axle
4265a Type 1
3713 Technic Bush

Blue Parts:
3700 Bearing Mod is Huge but all other blue are good

Black Parts:
All files are scaled incorrectly

Hi,

OK, I checked the parts you listed, and rather than using my local files I downloaded these ones from Thingiverse.

I can't find problems with these files other than one of the Hinge Brick parts in 3937 was over sized. The Blue part 3700 Isn't needed so has been removed.

When I import them into S3D it asks if I want to convert them to mm. If I say yes, it scales it to about 2,500%, if I say no, they are 100% but crazy tiny.

In S3D I sometimes get that message on small parts, but just say no and it should come in at 1:1 scale, some parts are quite small but checked them all this morning..

They all seem to be working quite well. I've printed all the red and blue parts so far. Starting the black this weekend. Thanks for making this!

Ok thanks. I'll give it a shot tonight.

For real, incredible work!!!! Well done

amazing, but where did you find the rubber hoze ?

It was actually some solid Neoprene/Foam pipe that I had in our workshop.. not sure where ti came from. I did previously find some rubber hose on Ebay I think, that had approx 13mm ID, 20mm OD, but it was kind of stiff and slightly undersized.

Amazing!! =) Just love it!
Will you do the 8860 next? :P

WOW this is great.
I am inspired! I plan on doing a new Technic set myself. I think I will settle for X3 though...

That is bloody fantastic
Love it. Nice work indeed.

Whow... Have the original somewhere at home - that's great!!!
Thanks for sharing!

Thank you Matthew. I Loved watching this get made and built with Ruben. Epic Job!

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