As the title says I have absolutely no hands on experience building any robo related item.
So I am starting here.
First question:
Where does one get gears and hardware (shafts frameworks etc)?
I purchased a Stepper Motor from RobotShop (RB-Plx-133) that comes with a 16 pin gear attached.
Now where do I fine other gears to interface with it?
Specifically I need to build a turntable so ideally I’d like a 4" dia. internal gear ring or something of the like.
I do not have a junk box (yet) with all sorts of stuff to salvage I have look but can not find anything.
Thanks for your help.
Ralph
Thanks for the reply Coleman,
Wel qtc certainly has gears, thank you. They are a bit pricey for me at this level of just starting out but definitely will be a good reference.
I definitely am starting to build a salvage (junk) box.
Is this the correct forum for this type question, what about bearings especially magnetic bearings?
How would one remove the gear? Would it need to be heated or would a small puller work, then again where would I get a small puller?
And speaking of buying gears how would I match the pitch?
The gear is 3/8" in diameter with 16 teeth so I should be able to figure the pitch. qtc references a pitch in their specs but most gears I have found on line do not.
There must be others that have purchased the RB-Pix-133 Parallax 12v / 4Phase Unipolar Stepper Motor. I wonder what they did?
Thanks again for the reply,
Ralph
Hi Ralphxyz,
Welcome to the RobotShop Forum. We hope to soon offer a greater selection of mechanical components such as gears, though for the moment you need to search online. The motor you purchased is likely overstock which the manufacturer sells to a specific company in large volume and also sells it separately. The company they sell it to likely requested a gear at the end, so instead of producing two lines, they simply included the gear with all motors. Fortunately that gear can be removed. One place to look for gears is qtcgears.com. If you can’t find something that meshes perfectly, try to replace it.
Hope this helps,
If it is related to robotics, then certainly. We continue to get requests to carry bearings, though we are looking for a supplier capable or providing a variety of mechanical components.
It’s a press fit. Tighten the gear in a vise, and put a similar sized rode (no bigger than the shaft of the motor) directly on the motor’s shaft and hit it gently until the motor drops. A nail usually works.
You would need to take measurements to get the pitch, diameter etc. There are sources online to help you do that.
Bingo. It should be fairly standard, so keep looking.
Usually replaced the gear.
Hope this helps,
