Mechanics and Construction > Mechanics and Construction

3 questions -

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ed1380:

--- Quote from: Eco19R on May 26, 2007, 12:42:04 PM ---2. - Whats the best way to mount wheels to bearings then bearing to the base? I have been running into this issue and I am not sure how to solve it. I am also looking to make a tracked bot but I don't want to have to machine all the "track roller things" my self, Does anyone have a good idea on mounting these plastic "track roller things" ( http://www.hobbyengineering.com/H2028.html) to bearings then bearings to the base?


--- End quote ---
my guess would be pillow block bearings, but that depends on size

Eco19R:

--- Quote from: ed1380 on May 26, 2007, 09:11:43 PM ---
--- Quote from: Eco19R on May 26, 2007, 12:42:04 PM ---2. - Whats the best way to mount wheels to bearings then bearing to the base? I have been running into this issue and I am not sure how to solve it. I am also looking to make a tracked bot but I don't want to have to machine all the "track roller things" my self, Does anyone have a good idea on mounting these plastic "track roller things" ( http://www.hobbyengineering.com/H2028.html) to bearings then bearings to the base?


--- End quote ---
my guess would be pillow block bearings, but that depends on size

--- End quote ---

I actually thought about that but the cost of the pillow block set would be greater then the robot itself.

I could machine my own but I don't have CNC set up on my mill and it would be a pain to do it by hand.

Off Topic: anyone know of a good 4 axis stepper motor driver for under 100$USD?

Ro-Bot-X:
http://www.hobbycnc.com/hcncpro.php

Kohanbash:
Instead of using all the track rollers, just use one on each end and place a smooth piece of plastic along the surface that the track is running.

Eco19R:

--- Quote from: sdk32285 on May 26, 2007, 11:56:39 PM ---Instead of using all the track rollers, just use one on each end and place a smooth piece of plastic along the surface that the track is running.

--- End quote ---

Thats actually a great idea I could even machine the grooves for it so it wouldn't get out of place - it still leaves the problem of mounting the two end rollers to bearings though, I don't have any aluminum ATM - I only have a bunch of cutting boards, Anyone have an idea on how to machine and setup a pillow block configuration for each side on one end? I got a couple of rough ideas but nothing to point of actually being able to create it.

Thanks everyone for all the help and ideas -

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