Introduction: 3D-Printed Combination Lock

Picture of 3D-Printed Combination Lock
This was done for my 3d modeling class (4170) using AutoDesk Inventor 2009. It was done to show how a basic combination lock works than to actually lock anything. It is made of 10 parts and fully works. Cost to make was around $28 to have it printed on a Dimension 3D printer.Total size is 4 inches wide. 3.5 front to back and 2.5 tall and very lightweight 2-4 ounces. (correction1.5 Ounces)

I got the idea from this website This is my version.

This was added to the Makezine site and I figured I would add it here also and throw in a few renders.


robot797 (author)2009-05-08

were can i buy or use a 3d printer?

Pkranger88 (author)robot7972009-05-11

You can check out online used equipment directories and get one cheaper but it won't have as high of tolerances and may need repair. To buy one new though, expect to start out at $18K and as much as $150K for the larger models. (for this particular technology) Other technologies are cheaper, but so are the parts. Good luck.

_soapy_ (author)Pkranger882016-09-24

Well, 7 years later, you can just go to a local FabLab or Makerspace and print one!

robot797 (author)_soapy_2016-09-24

we still dont have those in holland

tshirtnjeans (author)robot7972009-05-10

Wait a year and someone here will post a diy version

ReCreate (author)tshirtnjeans2009-05-13

Wait 50 Years and people will be throwing them out :P

robot797 (author)ReCreate2009-05-13

hihi 3D for free.

ReCreate (author)robot7972009-05-13


robot797 (author)ReCreate2009-05-14

you said people will be trowing them out. so i said free 3D i wanna have free 3D

ReCreate (author)robot7972009-05-14


robot797 (author)ReCreate2009-05-14

XD i wanna print a nitro motor and see if it runs..

ReCreate (author)robot7972009-05-14


Speedmite (author)ReCreate2009-06-12

Ummm....Is right.

robot797 (author)Speedmite2009-06-12

i like nitro

Speedmite (author)robot7972009-06-14


robot797 (author)Speedmite2009-06-14

no morle like in nitromethanol (glow fuel)

Speedmite (author)robot7972009-06-19


Speedmite (author)Speedmite2009-06-19

My profile contradicts my statement.

robot797 (author)Speedmite2009-06-22


robot797 (author)Speedmite2009-06-21

the nitro in it is NITROGLYCERIN XD

Speedmite (author)robot7972009-06-21


ReCreate (author)Speedmite2009-06-12


robot797 (author)ReCreate2009-06-12


ReCreate (author)robot7972009-06-12

i know i'm right...

robot797 (author)ReCreate2009-05-14


ReCreate (author)robot7972009-05-14


robot797 (author)ReCreate2009-05-14


ReCreate (author)robot7972009-05-14

Whatever :P

robot797 (author)ReCreate2009-05-15

blah *BANG* lost my head

Rob K (author)robot7972009-05-14

LOL I don't think that would work well. If it did work it might melt or run bad.

robot797 (author)tshirtnjeans2009-05-11

lol i wanna print prototypes.

ReCreate (author)robot7972009-05-14

I want a million dollars(I had to say that)

robot797 (author)ReCreate2009-05-15

oo lets print a milijoen dollar stach

ReCreate (author)robot7972009-05-15


robot797 (author)ReCreate2009-05-15

May 14, 2009. 9:55 PMReCreate says: I want a million dollars(I had to say that) May 15, 2009. 12:23 AMrobot797 says: oo lets print a milijoen dollar stach that is what i meen read the comment bevore and just dont say directly what.

ReCreate (author)robot7972009-05-15

Can you use the spell checker,I can't understand what your saying.

robot797 (author)ReCreate2009-05-15

pke Eye will try et XD (a prank) i will use it next time

ReCreate (author)robot7972009-05-15

Yes,Do use it next Time,Its very Important For Comunication,Learning Spelling,Pfft,But the Spell Checker,Yes

robot797 (author)ReCreate2009-05-15

right. I live in Holland so many spelling doesn't count for me. I speak and write it very good but I have a decease that causes met that I cat spell.

ReCreate (author)robot7972009-05-16


robot797 (author)ReCreate2009-05-16

sorry (I did check it but I skipped a letter) but still a good idea lets print a cat

ReCreate (author)robot7972009-05-16

I still can't understand you well,Lets print a Cat?

robot797 (author)ReCreate2009-05-16

I want a Garfield Cat.

ReCreate (author)robot7972009-05-16

Oh,is that what you said?

robot797 (author)ReCreate2009-05-16

how els must I say it. in Holland the country were I live it is: laten we een KAT printen.

ReCreate (author)robot7972009-05-16

argh,Still Can't Understand you

robot797 (author)ReCreate2009-05-17

ja dat snap jij niet* translation from dutch *yes you don't get that

ReCreate (author)robot7972009-05-17

Still Don't Understand the translation Either,A failure to communicate.

robot797 (author)ReCreate2009-05-17

lol laugh out loud I think it is my grammar that keeps you from reading it I has no grammar

ReCreate (author)robot7972009-05-17

I understood something,something about dinosaurs right? :P

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