I want to buy a car with chassis like this one: http://www.ebay.com/itm/4WD-4-Wheel-Smart-Robot-Car-Chassis-Kits-Magneto-Speed-Encoder-For-Arduino-51-/292063825476?hash=item44005c4e44:g:7UUAAOSwXYtY0l2p
I already have servo and ultrasonic sensor and would like to use them both with this car chassis. What concerns me is how to attach ultrasonic, servo, arduino and other hardware to the car chassis.
There is a item/robot kit that comes along with all these: http://www.ebay.com/itm/4WD-Robot-Car-Kit-UNO-Bluetooth-IR-Obstacle-Avoid-Line-Follow-L298N-for-Arduino-/401265037050?hash=item5d6d428efa:g:OCwAAOSwTuJYxmvZ&autorefresh=true
But it's too expensive and I already have most of the items that they sell with this package
Also they listed parts of the kit, and for mounting sensor and servo with the chassis they have those two items: 1 x Acrylic Bracket for HC-SR04 Ultrasonic Range Finder 1 x Acrylic Bracket for SG90 Servo
I really have no idea what acrylic bracket is, so after searching on ebay with that term I managed to find this items: http://www.ebay.com/itm/5PCS-2-Axis-Original-FPV-Special-Nylon-PTZ-NO-Servo-for-SG90-MG90-Servo-/222202233005?hash=item33bc4900ad http://www.ebay.com/sch/sis.html?_nkw=2+Axis+FPV+Original+Special+Nylon+PTZ+NO+Servo+for+SG90+Servo+Arduino+new&_itemId=331463798032&_trksid=p2047675.m4096 http://www.ebay.com/itm/10pcs-SG90-Servo-Motor-Bracket-SG90-Bracket-for-Robot-NO-Motor-NEW-/382020688626?hash=item58f2351af2:g:PPkAAOSwdGFY1~bv
I don't know if any of them will serve me, since I want to have ultrasonic sensor attached on the servo for 180 degree distance sensing.
Also how would attach other hardware to this chassis (microcontroller, DC Motor driver, sensors ..etc)
So if someone bought those items I would like get your opnions and suggestions.
Thank you in advance.