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2 : 1 gear ratio in studless technic
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2 : 1 gear ratio in studless technic
When did LEGO decide that it was okay to put a stud into a Technic hole?Strongest gear configurationTechnic 8071 assembly problemWhat is the difference between these hole shapes?Any way to create a gear+chain, like for a bike?Parts/Step not fitting ( technic / gear not aligning)How to build a limited slip differential?Existence of a Technic 1M Half BeamHow to best transfer power at 90 degrees for high torque applicationsDoes a 1x3 Lego technic liftarm with two round holes and one axle socket exist? (for tank suspension usage)
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Is there a recognised technique to create a 2 : 1 gear ratio in studless technic lego?
Neither of the two methods suggested here (studful though) work.
24t : 12t with a 2 x 1L axle offset does rotate, but is too stiff to be functional.
16t : 8t with a 1 x 1L axle offset is totally jammed.
technic gears
asked 9 hours ago
PeregrinePeregrine
1931 silver badge6 bronze badges
add a comment |
Is there a recognised technique to create a 2 : 1 gear ratio in studless technic lego?
Neither of the two methods suggested here (studful though) work.
24t : 12t with a 2 x 1L axle offset does rotate, but is too stiff to be functional.
16t : 8t with a 1 x 1L axle offset is totally jammed.
technic gears
asked 9 hours ago
PeregrinePeregrine
1931 silver badge6 bronze badges
An explanation of these observations - most lego gears need a pitch of(n + m) / 16studs. Your first case needs36/16=2.250but you give itsqrt(5)=2.236. Your second needs24/16=1.5but you give it1.414.
– Eric
1 hour ago
add a comment |
Is there a recognised technique to create a 2 : 1 gear ratio in studless technic lego?
Neither of the two methods suggested here (studful though) work.
24t : 12t with a 2 x 1L axle offset does rotate, but is too stiff to be functional.
16t : 8t with a 1 x 1L axle offset is totally jammed.
technic gears
asked 9 hours ago
PeregrinePeregrine
1931 silver badge6 bronze badges
Is there a recognised technique to create a 2 : 1 gear ratio in studless technic lego?
Neither of the two methods suggested here (studful though) work.
24t : 12t with a 2 x 1L axle offset does rotate, but is too stiff to be functional.
16t : 8t with a 1 x 1L axle offset is totally jammed.
technic gears
technic gears
asked 9 hours ago
PeregrinePeregrine
1931 silver badge6 bronze badges
asked 9 hours ago
PeregrinePeregrine
1931 silver badge6 bronze badges
asked 9 hours ago
PeregrinePeregrine
1931 silver badge6 bronze badges
asked 9 hours ago
PeregrinePeregrine
1931 silver badge6 bronze badges
asked 9 hours ago
PeregrinePeregrine
1931 silver badge6 bronze badges
1931 silver badge6 bronze badges
An explanation of these observations - most lego gears need a pitch of(n + m) / 16studs. Your first case needs36/16=2.250but you give itsqrt(5)=2.236. Your second needs24/16=1.5but you give it1.414.
– Eric
1 hour ago
add a comment |
An explanation of these observations - most lego gears need a pitch of(n + m) / 16studs. Your first case needs36/16=2.250but you give itsqrt(5)=2.236. Your second needs24/16=1.5but you give it1.414.
– Eric
1 hour ago
An explanation of these observations - most lego gears need a pitch of
(n + m) / 16 studs. Your first case needs 36/16=2.250 but you give it sqrt(5)=2.236. Your second needs 24/16=1.5 but you give it 1.414.– Eric
1 hour ago
An explanation of these observations - most lego gears need a pitch of
(n + m) / 16 studs. Your first case needs 36/16=2.250 but you give it sqrt(5)=2.236. Your second needs 24/16=1.5 but you give it 1.414.– Eric
1 hour ago
add a comment |
2 Answers
2
active
oldest
votes
Here's a solution I found in Yoshihito Isogawa's LEGO Power Functions Idea Book Vol. 1 - Machines and Mechanisms:
answered 7 hours ago
UliUli
1,2851 gold badge6 silver badges10 bronze badges
Pair this with a 12:12 gear pair, and you can bring your axles back to whole stud boundaries
– Eric
1 hour ago
add a comment |
You almost had it. If you move your 24T gear over 1 hole, and the 12T gear down one hole, they will mesh correctly:
The 12/24 combination is your best bet since it won't give you issues with hole/part alignment. I threw together a few other quick solutions for 2-gear combinations. The "slider" mechanism you see in a couple of the photos holds quite well, especially when mirrored on the other side of the gears for stability to aid against gear deflection.
I'll post more if I get time.
Here's another one, added rear view for clarity:
Last one, almost a 1:2 ratio
answered 1 hour ago
JohnnyBJohnnyB
1,8931 silver badge23 bronze badges
Your second picture is exactly the same configuration as the one the question dismisses as "too stiff"
– Eric
1 hour ago
@Eric - No, it isn't...
– JohnnyB
1 hour ago
Your pictures have been reordered. I now mean your first and third picture - the gears are both (2, 1) studs apart in both yours and the original.
– Eric
1 hour ago
@Eric - I understand why you think so, but the angle of where the gears mesh is different. From the left; his gears are 4 over, 3 up. Mine is 3 over 2 up. This changes the distance between the gears just enough to allow proper meshing.
– JohnnyB
53 mins ago
@Eric - I think I've earned an up-vote for having to explain this :P
– JohnnyB
50 mins ago
add a comment |
Your Answer
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Here's a solution I found in Yoshihito Isogawa's LEGO Power Functions Idea Book Vol. 1 - Machines and Mechanisms:
answered 7 hours ago
UliUli
1,2851 gold badge6 silver badges10 bronze badges
Pair this with a 12:12 gear pair, and you can bring your axles back to whole stud boundaries
– Eric
1 hour ago
add a comment |
Here's a solution I found in Yoshihito Isogawa's LEGO Power Functions Idea Book Vol. 1 - Machines and Mechanisms:
answered 7 hours ago
UliUli
1,2851 gold badge6 silver badges10 bronze badges
Pair this with a 12:12 gear pair, and you can bring your axles back to whole stud boundaries
– Eric
1 hour ago
add a comment |
Here's a solution I found in Yoshihito Isogawa's LEGO Power Functions Idea Book Vol. 1 - Machines and Mechanisms:
answered 7 hours ago
UliUli
1,2851 gold badge6 silver badges10 bronze badges
Here's a solution I found in Yoshihito Isogawa's LEGO Power Functions Idea Book Vol. 1 - Machines and Mechanisms:
answered 7 hours ago
UliUli
1,2851 gold badge6 silver badges10 bronze badges
answered 7 hours ago
UliUli
1,2851 gold badge6 silver badges10 bronze badges
answered 7 hours ago
UliUli
1,2851 gold badge6 silver badges10 bronze badges
answered 7 hours ago
UliUli
1,2851 gold badge6 silver badges10 bronze badges
1,2851 gold badge6 silver badges10 bronze badges
Pair this with a 12:12 gear pair, and you can bring your axles back to whole stud boundaries
– Eric
1 hour ago
add a comment |
Pair this with a 12:12 gear pair, and you can bring your axles back to whole stud boundaries
– Eric
1 hour ago
Pair this with a 12:12 gear pair, and you can bring your axles back to whole stud boundaries
– Eric
1 hour ago
Pair this with a 12:12 gear pair, and you can bring your axles back to whole stud boundaries
– Eric
1 hour ago
add a comment |
You almost had it. If you move your 24T gear over 1 hole, and the 12T gear down one hole, they will mesh correctly:
The 12/24 combination is your best bet since it won't give you issues with hole/part alignment. I threw together a few other quick solutions for 2-gear combinations. The "slider" mechanism you see in a couple of the photos holds quite well, especially when mirrored on the other side of the gears for stability to aid against gear deflection.
I'll post more if I get time.
Here's another one, added rear view for clarity:
Last one, almost a 1:2 ratio
answered 1 hour ago
JohnnyBJohnnyB
1,8931 silver badge23 bronze badges
Your second picture is exactly the same configuration as the one the question dismisses as "too stiff"
– Eric
1 hour ago
@Eric - No, it isn't...
– JohnnyB
1 hour ago
Your pictures have been reordered. I now mean your first and third picture - the gears are both (2, 1) studs apart in both yours and the original.
– Eric
1 hour ago
@Eric - I understand why you think so, but the angle of where the gears mesh is different. From the left; his gears are 4 over, 3 up. Mine is 3 over 2 up. This changes the distance between the gears just enough to allow proper meshing.
– JohnnyB
53 mins ago
@Eric - I think I've earned an up-vote for having to explain this :P
– JohnnyB
50 mins ago
add a comment |
You almost had it. If you move your 24T gear over 1 hole, and the 12T gear down one hole, they will mesh correctly:
The 12/24 combination is your best bet since it won't give you issues with hole/part alignment. I threw together a few other quick solutions for 2-gear combinations. The "slider" mechanism you see in a couple of the photos holds quite well, especially when mirrored on the other side of the gears for stability to aid against gear deflection.
I'll post more if I get time.
Here's another one, added rear view for clarity:
Last one, almost a 1:2 ratio
answered 1 hour ago
JohnnyBJohnnyB
1,8931 silver badge23 bronze badges
Your second picture is exactly the same configuration as the one the question dismisses as "too stiff"
– Eric
1 hour ago
@Eric - No, it isn't...
– JohnnyB
1 hour ago
Your pictures have been reordered. I now mean your first and third picture - the gears are both (2, 1) studs apart in both yours and the original.
– Eric
1 hour ago
@Eric - I understand why you think so, but the angle of where the gears mesh is different. From the left; his gears are 4 over, 3 up. Mine is 3 over 2 up. This changes the distance between the gears just enough to allow proper meshing.
– JohnnyB
53 mins ago
@Eric - I think I've earned an up-vote for having to explain this :P
– JohnnyB
50 mins ago
add a comment |
You almost had it. If you move your 24T gear over 1 hole, and the 12T gear down one hole, they will mesh correctly:
The 12/24 combination is your best bet since it won't give you issues with hole/part alignment. I threw together a few other quick solutions for 2-gear combinations. The "slider" mechanism you see in a couple of the photos holds quite well, especially when mirrored on the other side of the gears for stability to aid against gear deflection.
I'll post more if I get time.
Here's another one, added rear view for clarity:
Last one, almost a 1:2 ratio
answered 1 hour ago
JohnnyBJohnnyB
1,8931 silver badge23 bronze badges
You almost had it. If you move your 24T gear over 1 hole, and the 12T gear down one hole, they will mesh correctly:
The 12/24 combination is your best bet since it won't give you issues with hole/part alignment. I threw together a few other quick solutions for 2-gear combinations. The "slider" mechanism you see in a couple of the photos holds quite well, especially when mirrored on the other side of the gears for stability to aid against gear deflection.
I'll post more if I get time.
Here's another one, added rear view for clarity:
Last one, almost a 1:2 ratio
answered 1 hour ago
JohnnyBJohnnyB
1,8931 silver badge23 bronze badges
edited 5 mins ago
answered 1 hour ago
JohnnyBJohnnyB
1,8931 silver badge23 bronze badges
answered 1 hour ago
JohnnyBJohnnyB
1,8931 silver badge23 bronze badges
answered 1 hour ago
JohnnyBJohnnyB
1,8931 silver badge23 bronze badges
1,8931 silver badge23 bronze badges
Your second picture is exactly the same configuration as the one the question dismisses as "too stiff"
– Eric
1 hour ago
@Eric - No, it isn't...
– JohnnyB
1 hour ago
Your pictures have been reordered. I now mean your first and third picture - the gears are both (2, 1) studs apart in both yours and the original.
– Eric
1 hour ago
@Eric - I understand why you think so, but the angle of where the gears mesh is different. From the left; his gears are 4 over, 3 up. Mine is 3 over 2 up. This changes the distance between the gears just enough to allow proper meshing.
– JohnnyB
53 mins ago
@Eric - I think I've earned an up-vote for having to explain this :P
– JohnnyB
50 mins ago
add a comment |
Your second picture is exactly the same configuration as the one the question dismisses as "too stiff"
– Eric
1 hour ago
@Eric - No, it isn't...
– JohnnyB
1 hour ago
Your pictures have been reordered. I now mean your first and third picture - the gears are both (2, 1) studs apart in both yours and the original.
– Eric
1 hour ago
@Eric - I understand why you think so, but the angle of where the gears mesh is different. From the left; his gears are 4 over, 3 up. Mine is 3 over 2 up. This changes the distance between the gears just enough to allow proper meshing.
– JohnnyB
53 mins ago
@Eric - I think I've earned an up-vote for having to explain this :P
– JohnnyB
50 mins ago
Your second picture is exactly the same configuration as the one the question dismisses as "too stiff"
– Eric
1 hour ago
Your second picture is exactly the same configuration as the one the question dismisses as "too stiff"
– Eric
1 hour ago
@Eric - No, it isn't...
– JohnnyB
1 hour ago
@Eric - No, it isn't...
– JohnnyB
1 hour ago
Your pictures have been reordered. I now mean your first and third picture - the gears are both (2, 1) studs apart in both yours and the original.
– Eric
1 hour ago
Your pictures have been reordered. I now mean your first and third picture - the gears are both (2, 1) studs apart in both yours and the original.
– Eric
1 hour ago
@Eric - I understand why you think so, but the angle of where the gears mesh is different. From the left; his gears are 4 over, 3 up. Mine is 3 over 2 up. This changes the distance between the gears just enough to allow proper meshing.
– JohnnyB
53 mins ago
@Eric - I understand why you think so, but the angle of where the gears mesh is different. From the left; his gears are 4 over, 3 up. Mine is 3 over 2 up. This changes the distance between the gears just enough to allow proper meshing.
– JohnnyB
53 mins ago
@Eric - I think I've earned an up-vote for having to explain this :P
– JohnnyB
50 mins ago
@Eric - I think I've earned an up-vote for having to explain this :P
– JohnnyB
50 mins ago
add a comment |
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An explanation of these observations - most lego gears need a pitch of
(n + m) / 16studs. Your first case needs36/16=2.250but you give itsqrt(5)=2.236. Your second needs24/16=1.5but you give it1.414.– Eric
1 hour ago