Introduction: Knex Parallel Arm Lift
Here is my newest lift: the Parallel arm lift!
Most credits go to Shadowman, as he invented this lift first in his unfinished ball machine, I tried to rebuild it from the vid (only managed to rebuild the front part of the arm and some basic ideas).
So, this instruction is very complicated and nothing for absolutely beginners.
And it is also loooooooooong.
Be sure that all 3D connectors are turned correctly, with some you also have to pay attention that they aren't turned 180°, I'll note which in the image notes, so be sure to read them!
Sorry for any fails I made, making instructions was quite complicated.
And feel free to ask if you have any problems!
I use a plug-in motor, and I would recommend also using one as they have more power than the battery motors. Maybe you could use two battery motors...
Be sure to comment, rate and subscribe!
Oh, and the first one to make a piece count will earn a patch :D (But please be honest about it)
Be sure to check out my website!
Step 1: Making the Left Base
Just some structure...
Step 2: Gearing Part One
Be sure to make spacers etc. correct
Step 3: Gearing Part Two
Step 4: Gearing Part Three
Step 5: Gearing Part Four
Step 6: Gearing Part Five
Step 7: Gearing Part Six
Here's also the motor
Step 8: Gearing Part Seven
Step 9: Attaching the Gear Box
Few, finally gearing is finished!
Step 10: Making the Right Base
Step 11: The Entrance Track
Step 12: Connecting...
Step 13: The Gate
Step 14: The Lower Arm
Step 15: Back Counterweights Tower Shaft
Step 16: Front Counterweight Tower Shaft
Step 17: Arm Tower
Step 18: The Exit Track
Step 19: The Arm Connection
Step 20: The Arms
Now you'll make both arms, later on you'll modify them as they are unique in the model.
Step 21: Modifying the First Arm
Step 22: Modifying the Second Arm
Step 23: Making the Top Wheels
Step 24: Making the First Counterweight
All Y-connectors are just clipped onto the end of the rods.
The string between the counterweight and the connections (without the used for the knots) is 1.43 meters (56.2992126 inch).
Step 25: Inserting the First Counterweight
The red string indicates where it will go as it is hard to see.
Step 26: Some More Modifications for the Second Arm
They weren't possible to make before
Step 27: Making the Second Counter Weight
It is actually the same as with the first one, just somewhat shorter.
The string is 86 cm long (33.8582677 inch).
Step 28: Inserting the Second Counterweight
Step 29: Finishing the Crank
Step 30: Finished! + Troubleshooting
Wha, you'r finally finished!
Sorry for all mistakes I made, making the instruction was REALLY complicated. I also had many problems with uploading so many files at the same time to ibles, and then ibles also didn't sort the files correctly in my image library....
Well, but here it is!
If you add a picture below of your model I'll ad it to this step!
Be sure to comment, rate and SUBSCRIBE!
Check out my Website for more cool stuff!
My arms go as choppy down as in the beginning of the vid! - Make sure that all the string is correctly on the wheels, that was also my problems with the first clip and I was to lazy to re-film :P
The balls won't enter the lift as the gate won't go up! - be sure that that thingy in the back of the gate is in the correct position.
The balls fall back down when going to the next arm! - The 'trapdoors' have to be swiped over the hole.
My model doesn't look somewhat correct! - Make sure that every rod is attached correctly.
My model looks very crashed! - Next time don't through it out of the top window of a three story building!