3D motor bracket model 2nd design review

board complete tilted

complete mechanical setup

motor bracket and belt tensioner

see through mounted parts

position of tensioner

sketch of the drill pattern

a few Parts arrived

A few parts arrived the last days. i was pretty surprised how fast the shipping from HK was.

The pulley arrived, was hard to find a aluminum pulley with 40T.

40T aluminum pulley with guidance discs removed. Still needs to be reworked for fitting on the wheel.

Car ESC for 6s Lipos.

pretty much the whole electronic setup. Remote and lipobeeper are missing.

The board of choice. Santa Cruz Tiki Skull Bamboo.

sources for the belt parts

40T
http://www.aliexpress.com/item/5M-Arc-HTD-tooth-40Teech-Pitch-5mm-Bore-8mm-for-Motor-Belt-Pulleys-Timing-Pulleys-DIY/1663941076.html


http://www.cncprofi.eu/product_info.php?info=p864_zahnriemenrad-htd-5m-bohrung-fi-14-00-----40-zaehne-zahnriemenbreite-25-mm.html

http://www.ebay.co.uk/itm/Aluminum-synchronous-round-Industrial-synchronous-belt-pulley-DIY-robot-3M-5M-/181371507748?&_trksid=p2056016.m2516.l5255

15T
http://www.conrad.de/ce/de/product/1001521/SIT-HTD-Zahnscheibe-HD0155M015-Stahl-Anzahl-Zaehne-15-Breite-mit-Flansch-26-mm-Breite-ohne-Flansch-205-mm?ref=searchDetail

belt
http://www.ebay.de/itm/Hochleistungs-Zahnriemen-300-5M-Teilung-5-Strongbelt-Premium-HTD-RPP-60-Zahne-/310478337868?pt=LH_DefaultDomain_77&var=&hash=item4849f3774c

http://www.keilriemenexpress.de/zahnflachriemen-zahnriemen-shop/htd-zahnriemen/powergrip-htd-zahnriemen-5m/zahnflachriemen-5m-htd-15-mm-breite/5m-htd-300-lw-15-mm.html

belt drive ratios

cog	pulley	belt length in mm	distance in mm
18	40	300	75,5
15	40	295	76,1
15	36	285	76,9
16	40	300	77,6
18	40	305	78,0
15	40	300	78,7
15	36	290	79,5
16	40	305	80,2

The belt tensioner needs to work from 75,5-78,7 mm distance, so the adjustment is going from 75-80mm.

With this design, a 300mm belt can be used with 15-40 18-40 16-40 setup.

wiiceiver

scheme of wiiceiver
http://www.digikey.com/schemeit#t9g

sourcecode
https://github.com/jaustindavid/wiiceiver

soruce: http://endless-sphere.com/forums/viewtopic.php?f=35&t=59582

3D motor bracket model 1st design review

first 3D Model with structure

finished 3D model for design

checking collision with model/real

collsion test with monuted motor bracket

collsion test with monuted motor bracket

Position of motor and bracket

ESC for single driven wheel

EZRUN 150A Pro (XERUN-150A)





1.1 Output: Continuous 150A, burst 1080A.
1.2 Input: 6-18 cells NiMH/NiCd or 2-6S LiPo.
      (When using 2S lipo or 6 cells NiMH, an UBEC or seperate battery  is strongly recommended to supply the receiver)
1.3 BEC: 5.75V/3A (Switch mode built-in BEC).
1.4 Resistance: 0.0002 Ohm.
1.5 Motor Supported: Sensorless brushless motors.
1.6 Suitable Motor: KV<=2500. * Note #1
1.7 Suitable Car: 1/5 and 1/8 scale on-road or off-road sport.
1.8 Size: 79mm(L) * 52mm(W) * 46.5mm(H).
1.9 Weight: 150g(Without wires).

* Note #1: This listed KV value is available for 4274 sized brushless motor (Ø=42, L=74) 

2   Features

2.1   Compatible with sensorless brushless motors and most of sensored brushless motors (work in sensorless mode).
2.2   Excellent start-up, acceleration and linearity features.
2.3   Built-in switch mode BEC has powerful output to supply all the electronic equipments.
2.4   Plenty of programmable items, suitable for various of chassis's, tires and racing tracks.
2.5   Multiple protection features: Low voltage cut-off protection / Over-heat protection / Throttle signal loss protection.
2.6   Internal timing can be changed easily to make the ESC suitable for various of motors. 
2.7   Easily programmed with the SET button, LED Program Box, Multifunction LCD Program Box and USB Link Software.
2.8   ESC firmware can be updated through the USB adapter in the LCD Program Box .

http://www.hobbywing.com/product_show.asp?id=239


Instructions

http://www.hobbywing.com/uploadfiles/sx/file/Manual/HW-13-pro-150.pdf

where to buy?
http://rchobbydeal.com/index.php?route=product/product&product_id=215
http://rchobbydeal.com/index.php?route=product/product&product_id=79&search=150A
 

cheap wheels

http://www.skateshop24.de/Longboards/Longboard-Rollen/Blank-Wheels/Blank-Longboard-Wheels-Lime-Green-90mm-78a::22293.html

belt drive calculation HTD 5M 15-40

Details Zahnriemen

Bezeichnung     HTD5M

Teilung 5.0          mm

Breite   15.0       mm

Gewicht pro m 0.06       kg

Erforderliche Vorspannkraft      95.27     N

Achsabstand     78.73     mm

Riemenlänge     300.0     mm

Riemengewicht               0.02       kg

Anzahl Zähne    60          

Details Leistungsberechnung

Antriebsleistung              0.8          kW

Abtriebsleistung              0.75       kw

Antriebsrad       1            

Sicherheit           1.58      

Hinweis: Die Leistungsbilanz ist nicht ausgeglichen. Leistungsüberschuß: 0.05

Details Zahnscheiben

Zahnscheibe Nr: 1

Position X           0.0          mm

Position Y            0.0          mm

Zähnezahl           15          

eingreifende Zähnezahl               6            

Außendurchmesser       22.73     mm

Wirkdurchmesser           23.87     mm

Breite   15.0       mm

Umschlingungswinkel   150.72   °

Drehzahl             6500.0   1/min

An-/Abtrieb       Antrieb

Drehmoment    1.18       Nm

Leistung              0.8          kW

max. zul. Leistung           1.26       kW

Sicherheit           1.58      

Artikelnummer                17231500

Zahnscheibe Nr: 2

Position X           78.73     mm

Position Y            0.0          mm

Zähnezahl           40          

eingreifende Zähnezahl               23          

Außendurchmesser       62.52     mm

Wirkdurchmesser           63.66     mm

Breite   15.0       mm

Umschlingungswinkel   209.28   °

Drehzahl             2437.5   1/min

An-/Abtrieb       Abtrieb

Drehmoment    2.94       Nm

Leistung              0.75       kW

max. zul. Leistung           2.1          kW

Sicherheit           2.8         

Artikelnummer                17234000

how others do it: Motor bracket with screws

http://www.aliendrivesystems.com/store/p42/Precision_Caliber_I_and_II_Truck_Mount_Kit_-_Single_Motor.html

http://practicalprojects.weebly.com/connecting-it-all-up.html

http://boostedboards.com/blog/ 
 

belt drive calculation HTD 5M 15-36

Details Zahnriemen

Bezeichnung     HTD5M

Teilung 5.0          mm

Breite   15.0       mm

Gewicht pro m 0.06       kg

Erforderliche Vorspannkraft      96.27     N

Achsabstand     79.7       mm

Riemenlänge     290.0     mm

Riemengewicht               0.02       kg

Anzahl Zähne    58.0      

Details Leistungsberechnung

Antriebsleistung              0.8          kW

Abtriebsleistung              0.75       kw

Antriebsrad       1            

Sicherheit           1.58      

Hinweis: Die Leistungsbilanz ist nicht ausgeglichen. Leistungsüberschuß: 0.05

Details Zahnscheiben

  Zahnscheibe Nr: 1

Position X           0.0          mm

Position Y            0.0          mm

Zähnezahl           15          

eingreifende Zähnezahl               6            

Außendurchmesser       22.73     mm

Wirkdurchmesser           23.87     mm

Breite   15.0       mm

Umschlingungswinkel   155.79   °

Drehzahl             6500.0   1/min

An-/Abtrieb       Antrieb

Drehmoment    1.18       Nm

Leistung              0.8          kW

max. zul. Leistung           1.26       kW

Sicherheit           1.58      

Artikelnummer                17231500

  Zahnscheibe Nr: 2

Position X           79.7       mm

Position Y            0.0          mm

Zähnezahl           36          

eingreifende Zähnezahl               20          

Außendurchmesser       56.16     mm

Wirkdurchmesser           57.3       mm

Breite   15.0       mm

Umschlingungswinkel   204.21   °

Drehzahl             2708.33                1/min

An-/Abtrieb       Abtrieb

Drehmoment    2.64       Nm

Leistung              0.75       kW

max. zul. Leistung           2.04       kW

Sicherheit           2.73      

Artikelnummer                17233600