Instructables
loading
loading
Picture of Knex Stair Lift
IMG_0002_4.jpg
IMG_0003_4.jpg
100-IMGA0523.JPG
I finally decided to post my stair lift. It's similar to the stair lift I used in Wipe Out, except for a few modifications. The steps sort of work like pistons, going up and down on rods of different length. Each rod is a green rod higher than the one before it. This one has an improved design since the last one, like better platforms and an enter and exit track. I also made it more reliable.

This lift also works with the newer balls.

EDIT:  This Instructable reached 4.13* within a day after posting.

Video:



I hope you like it!

 
Remove these adsRemove these ads by Signing Up

Step 1: Parts List

Picture of Parts List
Before you begin building, you'll want to gather all of these pieces:

Rods:  296
green-85
white-81
blue-86
yellow-41
red-3

Connectors:  261
dark gray- 57
light gray-20
red-31
green-12
yellow-30
white-5
orange-28
blue-35
purple-43

Other:  122
blue spacer-47
silver spacer-43
Y clip-5
tan clip-23
(metallic) blue clip-1
red gear-1
blue gear-1
battery powered motor-1
balls-at least 1

Total:  679

If you have all these parts, then on to the next step!

Step 2: The Axle and Motor

Picture of The Axle and Motor
IMG_0005_2.jpg
IMG_0006_2.jpg
IMG_0007_2.jpg
IMG_0008_2.jpg
IMG_0009_2.jpg
IMG_0010_2.jpg
IMG_0011_2.jpg
IMG_0012_2.jpg
IMG_0013_2.jpg
In this step you'll build the axle that lifts the stairs up and down and put the motor on. The axle is part A, and the motor is part B. Don't forget any spacers!

Step 3: The Tower, Side 1

Picture of The Tower, Side 1
IMG_0015_2.jpg
IMG_0016_2.jpg
IMG_0017_2.jpg
IMG_0018_2.jpg
IMG_0019_2.jpg
IMG_0020_2.jpg
IMG_0021_2.jpg
IMG_0022_2.jpg
IMG_0023_2.jpg
IMG_0024_2.jpg
This is one side of the tower. You'll find that there's a pattern on the tower. Not much more to say, but pay close attention to the pictures.

Step 4: The Tower, Side 2

Picture of The Tower, Side 2
IMG_0026_2.jpg
IMG_0027_2.jpg
IMG_0028_2.jpg
IMG_0029_2.jpg
IMG_0030_2.jpg
This is the second side of the tower.

Step 5: Combining Steps 2-4

Picture of Combining Steps 2-4
IMG_0032_2.jpg
IMG_0033_2.jpg
IMG_0034_2.jpg
IMG_0035_2.jpg
IMG_0036_2.jpg
IMG_0037_2.jpg
IMG_0038_2.jpg
IMG_0039_2.jpg
IMG_0040_2.jpg
IMG_0041_2.jpg
IMG_0042_2.jpg
IMG_0043_2.jpg
IMG_0044_2.jpg
IMG_0045_2.jpg
IMG_0046_2.jpg
IMG_0047_2.jpg
IMG_0048_2.jpg
In this step you'll assemble what you have built so far. Make sure to connect everything when putting the towers together.

Step 6: The Motor Section and Entrance Track

Picture of The Motor Section and Entrance Track
IMG_0050_2.jpg
IMG_0051_2.jpg
IMG_0052_2.jpg
IMG_0053_2.jpg
IMG_0054_2.jpg
IMG_0055_2.jpg
IMG_0056_2.jpg
IMG_0057_2.jpg
IMG_0058_2.jpg
IMG_0059_2.jpg
IMG_0060_2.jpg
After you're done building the motor section and entrance track, you'll attach them to the model.

Step 7: The Steps

Picture of The Steps
IMG_0062_2.jpg
IMG_0063_2.jpg
IMG_0064_2.jpg
IMG_0065_2.jpg
IMG_0066_2.jpg
IMG_0067_2.jpg
IMG_0068_2.jpg
IMG_0069_2.jpg
Now you finally get to build what the stair lift is all about. You'll have to build four steps.

Step 8: The Exit Track

Picture of The Exit Track
IMG_0071_2.jpg
This is the easiest step of this Instructable.

Step 9: Adding Steps 7 and 8

Picture of Adding Steps 7 and 8
IMG_0073_1.jpg
IMG_0074_1.jpg
IMG_0075_1.jpg
IMG_0076_1.jpg
IMG_0077_1.jpg
IMG_0078_1.jpg
IMG_0079_1.jpg
You're almost finished! Just add the steps and exit track to the model. Make sure the steps slide on the yellow rods.
1-40 of 196Next »

Could I possibly make this longer and higher?

Shadowman39 (author)  Blue Mullet 22 days ago

Yeah, I'm not sure what the limitations are though. I built one that was 5 stairs and it worked fine, and I think there have been 6-stair ones that work well too.

Hmm ok thanks for the reply.
trollface34 made it!7 months ago

I made it ..... again!!!!! like your cat it always gets in the picture!!!!!!!!!!!!!!!

picture005.jpg
Shadowman39 (author)  trollface347 months ago

Ha, looks good!

I've tried multiple times to make this 1....but it never lines up right :(
Shadowman39 (author)  shortordercookie864 months ago

Do you have any pictures of the parts that don't line up right?

trollface347 months ago

my foot always gets in the picture

trollface34 made it!7 months ago

I made it ..... again!!!!! like your cat it always gets in the picture!!!!!!!!!!!!!!!

picture005.jpg
trollface34 made it!7 months ago

I made it ..... again!!!!! like your cat it always gets in the picture!!!!!!!!!!!!!!!

picture005.jpg
trollface34 made it!7 months ago

I made it ..... again!!!!! like your cat it always gets in the picture!!!!!!!!!!!!!!!

picture005.jpg
trollface34 made it!7 months ago

I made it ..... again!!!!! like your cat it always gets in the picture!!!!!!!!!!!!!!!

picture005.jpg
trollface34 made it!7 months ago

I made it ..... again!!!!! like your cat it always gets in the picture!!!!!!!!!!!!!!!

picture005.jpg
trollface347 months ago

i've made it before and cause it was so good i'm making it again!!!!!!

Shadowman39 (author)  trollface347 months ago

Cool, thanks for building!

www13911 months ago

Here are some photos!

PIC_0130.JPGPIC_0131.JPGPIC_0132.JPGPIC_0133.JPGPIC_0134.JPGPIC_0135.JPG
Shadowman39 (author)  www13911 months ago

Looks nice, thanks for building!

www139 Shadowman3911 months ago

oh thanks! it was also fun to build!!!

www13911 months ago

does it work with a green motor?

Shadowman39 (author)  www13911 months ago

Yes, you'll just have to modify it a bit.

www139 Shadowman3911 months ago

I did it!!!! will show a picture!

www139 Shadowman3911 months ago

ok! thanks! I have an old battery pack motor that runs ok but it squeals a lot. Glad to hear it will work!!!!

Miq3131 year ago
Is this part necessary in step 1
photo-2013-08-15 20:41.jpg
Shadowman39 (author)  Miq3131 year ago
No, that's just the piece counting step, so you don't have to build anything yet.
OZKNEX221 year ago
I built it worth pure genius
Shadowman39 (author)  OZKNEX221 year ago
Nice, thanks for building!
KNEX-pert3 years ago
COOOOOoooool! Awesome! You've built a great instructable!
In step 2 pic4, whats the black thing underneath the black snowflake connector? (2nd from left)
hi4523 years ago
I honestly had my doubts about this but I built it and it worked. Very nice job on the design.
Shadowman39 (author)  hi4523 years ago
Thanks!
albydesign3 years ago
Thats cool! 5* you deserve it! =D
Shadowman39 (author)  albydesign3 years ago
Thanks! :-)
No Problem, this is ingenious! =D
jman13564 years ago
what if u dont have have the red motor i have just a blue motor can i still run it
Shadowman39 (author)  jman13564 years ago
Yes, you'll just have to modify the motor section a bit.
MegaMetal84 years ago
My motor (Green one) Doesn't fit :-(
Isn't that motor too weak?
Ive built it now, Works just as fast as his
Shadowman39 (author)  MegaMetal84 years ago
It should fit in a green rod space. Just change the orange connectors on the side to white, and take out the blue spacers.
Ok
1-40 of 196Next »