Thingiverse
Saitek Pro Flight Yoke 180 degree rotation mod by Wierzbowsky
by Thingiverse
Last crawled date: 3 years, 4 months ago
The Saitek Pro Flight Yoke shaft's rotation is limited to 90 degree angle while its more expensive "sister" - the Cessna Yoke has the 180 degree rotation capability. As most of the real aircrafts' yokes as well as the professional yokes for flight simulation support the 180 degree rotation, I've decided to give my Pro Flight yoke an upgrade.
The project involves the full disassembly of the complex hardware, so before starting the upgrade, please make sure that you have proper skills to complete it. I am not responsible for any damages resulted from this upgrade. Though the upgrade is fully reversible (original parts can be always put back), please make sure that you don't damage anything beyond repair.
WARNING! The tests performed by several people after applying this modification indicated that the input of the modified yoke became non-linear. The modification affected how the yoke behaved in the simulator and this behavior became different compared to the one before the modification. If you can't adjust the controls so that they became linear again and allow the smooth controlling of the aircraft at all rotation angles of the yoke, it's advised to reverse the modification.
You can also replace the original controller board with Leo Bodnar's BU0836A controller board in case the original board is broken. This new custom board allows more linear input from the pitch and roll variable resistors and thus, smoother control of the aircraft. More information can be found here:
https://www.thingiverse.com/thing:4680136
To upgrade the yoke you have to do the following:
Open the Yoke's case and remove all screws that hold the shaft and the variable resistor for the roll as well as the roll mechanism's spring, disassemble the roll control mechanism, remove the gear from the roll's variable resistor
Remove the old pitch tension mechanism together with its springs, leave only the lever going to the variable resistor that controls the pitch
Remove 2 screws from the rear shaft's holder back and glue the white sleeve into the holder with a strong glue
Remove all plastic parts from from the yoke's shaft, make sure not to lose the metal pin and the rollers that are located inside the roll driver mechanism (you will need them later)
Install the cable protector on the cable at the end of the shaft, secure it with hot glue as shown on the supplied picture and put the rear holder on the shaft
Install the new pitch driver's clutch as shown on the supplied pictures, insert the newly-made pin (the pin has to be cut from a 2.9mm diameter nail and filed from both ends) into it and then glue the pin from one side (the pin must not stick out from the groove's bottom)
Assemble and put back the original pitch tension mechanism (unless you want to use the "Rubber mod" from Youtube) and put the middle shaft holder on the shaft
Apply grease onto the 2 roll angle limiter parts, put them together as shown on the supplied picture and install them on the shaft
Assemble the roll driver mechanism (use the original pin and rollers, as well as 4 screws), grease it and install on the shaft as shown on the supplied pictures
Put the front shaft holder and its sleeve on the shaft
Install the front sleeve and connect the yoke's handle to the shaft
Cut the hole for the belt as shown on the supplied picture
Replace the nut holder under the roll gear with the new one as shown on the supplied picture
Put the new gear onto the roll's variable resistor, mind the key
Assemble the roll mechanism as shown on the supplied picture, don't forget to grease it, mind the key when connecting the gear and the pulley together, secure them with the screw from the original assembly
Install the sturdy rubber band as shown on the supplied picture; it should be rather stiff so that you could feel its resistance when you turn the shaft all the way to the right or to the left
Install the timing belt as shown on the supplied picture, tighten it (but not too much!) and adjust the mechanism so that when the shaft is in the neutral position, the gears of the roll control mechanism touch each other in the middle as well; measure the resistance on the variable resistor's pins - it should read 1.8-1.9 kOhm from both sides of the resistor
Remove the rotation angle limiting plank that is located on the inside of the top yoke's cover
Install the rubber band for the wires as shown on the supplied picture and secure it, this is needed to avoid damaging the wires when rotating or pulling the yoke's shaft
Make sure that the pitch control lever's pin is located inside the pitch driver clutch's groove, make sure that the driver's groove is well-greased
See the supplied videos and if your mechanism functions as shown in the video, grease the shaft a bit and assemble the yoke's case. Done!
The below videos show how the Saitek's Pro Flight Yoke functions after installing the 180 degree rotation mod:
https://youtu.be/08HHLVGa9TEhttps://youtu.be/g-3My-s4lxg
The timing belt must be GT2 type, 3mm wide, 2mm gap between teeth, preferably with steel wires inside, for example:
https://www.amazon.de/gp/product/B083F4BFJ9
NOTE: This mod is compatible with the "Rubber band" mods for the Saitek's Pro Flight Yoke that you can find on Youtube. There are holes for the rubber bands in the pitch driver's clutch. With the rubber band mod you don't need the pitch driver tension mechanism as well as the rubber band on the top of the rotation limiters. If you don't plan to install the "Rubber band" mod, you don't need to remove the pitch tensioner at pp.2.
And finally, just to give you an example how many tries it took to make things right, check the "failures.jpg" image...
If you want to make a small donation in appreciation of my humble efforts, please use the "Tip designer" button on this page:
https://www.thingiverse.com/Wierzbowsky/designs
The project involves the full disassembly of the complex hardware, so before starting the upgrade, please make sure that you have proper skills to complete it. I am not responsible for any damages resulted from this upgrade. Though the upgrade is fully reversible (original parts can be always put back), please make sure that you don't damage anything beyond repair.
WARNING! The tests performed by several people after applying this modification indicated that the input of the modified yoke became non-linear. The modification affected how the yoke behaved in the simulator and this behavior became different compared to the one before the modification. If you can't adjust the controls so that they became linear again and allow the smooth controlling of the aircraft at all rotation angles of the yoke, it's advised to reverse the modification.
You can also replace the original controller board with Leo Bodnar's BU0836A controller board in case the original board is broken. This new custom board allows more linear input from the pitch and roll variable resistors and thus, smoother control of the aircraft. More information can be found here:
https://www.thingiverse.com/thing:4680136
To upgrade the yoke you have to do the following:
Open the Yoke's case and remove all screws that hold the shaft and the variable resistor for the roll as well as the roll mechanism's spring, disassemble the roll control mechanism, remove the gear from the roll's variable resistor
Remove the old pitch tension mechanism together with its springs, leave only the lever going to the variable resistor that controls the pitch
Remove 2 screws from the rear shaft's holder back and glue the white sleeve into the holder with a strong glue
Remove all plastic parts from from the yoke's shaft, make sure not to lose the metal pin and the rollers that are located inside the roll driver mechanism (you will need them later)
Install the cable protector on the cable at the end of the shaft, secure it with hot glue as shown on the supplied picture and put the rear holder on the shaft
Install the new pitch driver's clutch as shown on the supplied pictures, insert the newly-made pin (the pin has to be cut from a 2.9mm diameter nail and filed from both ends) into it and then glue the pin from one side (the pin must not stick out from the groove's bottom)
Assemble and put back the original pitch tension mechanism (unless you want to use the "Rubber mod" from Youtube) and put the middle shaft holder on the shaft
Apply grease onto the 2 roll angle limiter parts, put them together as shown on the supplied picture and install them on the shaft
Assemble the roll driver mechanism (use the original pin and rollers, as well as 4 screws), grease it and install on the shaft as shown on the supplied pictures
Put the front shaft holder and its sleeve on the shaft
Install the front sleeve and connect the yoke's handle to the shaft
Cut the hole for the belt as shown on the supplied picture
Replace the nut holder under the roll gear with the new one as shown on the supplied picture
Put the new gear onto the roll's variable resistor, mind the key
Assemble the roll mechanism as shown on the supplied picture, don't forget to grease it, mind the key when connecting the gear and the pulley together, secure them with the screw from the original assembly
Install the sturdy rubber band as shown on the supplied picture; it should be rather stiff so that you could feel its resistance when you turn the shaft all the way to the right or to the left
Install the timing belt as shown on the supplied picture, tighten it (but not too much!) and adjust the mechanism so that when the shaft is in the neutral position, the gears of the roll control mechanism touch each other in the middle as well; measure the resistance on the variable resistor's pins - it should read 1.8-1.9 kOhm from both sides of the resistor
Remove the rotation angle limiting plank that is located on the inside of the top yoke's cover
Install the rubber band for the wires as shown on the supplied picture and secure it, this is needed to avoid damaging the wires when rotating or pulling the yoke's shaft
Make sure that the pitch control lever's pin is located inside the pitch driver clutch's groove, make sure that the driver's groove is well-greased
See the supplied videos and if your mechanism functions as shown in the video, grease the shaft a bit and assemble the yoke's case. Done!
The below videos show how the Saitek's Pro Flight Yoke functions after installing the 180 degree rotation mod:
https://youtu.be/08HHLVGa9TEhttps://youtu.be/g-3My-s4lxg
The timing belt must be GT2 type, 3mm wide, 2mm gap between teeth, preferably with steel wires inside, for example:
https://www.amazon.de/gp/product/B083F4BFJ9
NOTE: This mod is compatible with the "Rubber band" mods for the Saitek's Pro Flight Yoke that you can find on Youtube. There are holes for the rubber bands in the pitch driver's clutch. With the rubber band mod you don't need the pitch driver tension mechanism as well as the rubber band on the top of the rotation limiters. If you don't plan to install the "Rubber band" mod, you don't need to remove the pitch tensioner at pp.2.
And finally, just to give you an example how many tries it took to make things right, check the "failures.jpg" image...
If you want to make a small donation in appreciation of my humble efforts, please use the "Tip designer" button on this page:
https://www.thingiverse.com/Wierzbowsky/designs
Similar models
3dwarehouse
free
Saitek Flight Yoke
...so i designed it just from the pictures. #airplane #airplane_yoke #cessna_172_yoke #cessna_yoke #saitek #saitek_flight_yoke #yoke
thingiverse
free
BU0836A controller board holder for Saitek's Pro Flight Yoke by Wierzbowsky
...f my humble efforts, please use the "tip designer" button on this page:
https://www.thingiverse.com/wierzbowsky/designs
grabcad
free
Scotch Yoke Mechanism
...scotch yoke mechanism
grabcad
scotch yoke mechanism
components: wheel, shaft, guide, yoke, support, pin
solidworks 2018
grabcad
free
Axial resistor set, gray
...sly only indicative."
the dimensions, pitch, and pin diameter of the resistors are indicated into the name of the step file.
grabcad
free
Axial resistor set, beige
...sly only indicative."
the dimensions, pitch, and pin diameter of the resistors are indicated into the name of the step file.
grabcad
free
Axial resistor set, brown
...sly only indicative."
the dimensions, pitch, and pin diameter of the resistors are indicated into the name of the step file.
grabcad
free
Axial resistor set, water green
...sly only indicative.
the dimensions, pitch, and pin diameter of the resistors are indicated into the name of the step file."
grabcad
free
Axial resistor set, light blue
...sly only indicative.
the dimensions, pitch, and pin diameter of the resistors are indicated into the name of the step file."
thingiverse
free
Saitek X55 / X56 stick enhancement (rubber bands version) by Guillaume74
...mouvement très fluide. elle ne nécessite aucune modification du manche ni outils, elle s'installe et s'enlève facilement.
thingiverse
free
Mechanical 2 inch Drive Wheel with a rotating 1 inch Pin on a Bearing.
... of the central drive shaft is 3/4 of an inch.
these parts were designed using the freeware version of the emachineshop software.
Wierzbowsky
thingiverse
free
ObsoNET2 Cartridge Case by Wierzbowsky
...f my humble efforts, please use the "tip designer" button on this page:
https://www.thingiverse.com/wierzbowsky/designs
thingiverse
free
Joystick Port Cover for MSX computers by Wierzbowsky
...f my humble efforts, please use the "tip designer" button on this page:
https://www.thingiverse.com/wierzbowsky/designs
thingiverse
free
Cover for SFG cartridge's interface connector by Wierzbowsky
...f my humble efforts, please use the "tip designer" button on this page:
https://www.thingiverse.com/wierzbowsky/designs
thingiverse
free
Crimping tool stand / holder by Wierzbowsky
...f my humble efforts, please use the "tip designer" button on this page:
https://www.thingiverse.com/wierzbowsky/designs
thingiverse
free
Simple body massage set by Wierzbowsky
...f my humble efforts, please use the "tip designer" button on this page:
https://www.thingiverse.com/wierzbowsky/designs
thingiverse
free
Scooter steering bar side plug by Wierzbowsky
...f my humble efforts, please use the "tip designer" button on this page:
https://www.thingiverse.com/wierzbowsky/designs
thingiverse
free
Simple 2-piece massage set by Wierzbowsky
...f my humble efforts, please use the "tip designer" button on this page:
https://www.thingiverse.com/wierzbowsky/designs
thingiverse
free
Key holder for Philips NMS 8245 MSX2 computer by Wierzbowsky
...f my humble efforts, please use the "tip designer" button on this page:
https://www.thingiverse.com/wierzbowsky/designs
thingiverse
free
Foot for Yamaha YIS-805 MSX computer case by Wierzbowsky
...f my humble efforts, please use the "tip designer" button on this page:
https://www.thingiverse.com/wierzbowsky/designs
thingiverse
free
Yamaha YIS-805 bottom cover by Wierzbowsky
...f my humble efforts, please use the "tip designer" button on this page:
https://www.thingiverse.com/wierzbowsky/designs
Saitek
3d_export
$8
saitek
...uipment controller and pedals for farming simulator or similar games modeled in blender. all materials i.e. no textures required.
turbosquid
free
Saitek Pro Flight Multi Panel
...itek pro flight multi panel for download as obj, fbx, and stl on turbosquid: 3d models for games, architecture, videos. (1537451)
thingiverse
free
Saitek X45 fixation by Cartedan
...saitek x45 fixation by cartedan
thingiverse
mount saitek x45
thingiverse
free
Saitek throttle by nikolas03
...saitek throttle by nikolas03
thingiverse
bonjour, il s'agit juste de la modélisation de la manette des gaz saitek.
thingiverse
free
Saitek sidepanel by SilenceDK
...ent games, or even different equipments within the same game.
a few millimeters thick only, works with almost all print settings.
thingiverse
free
RealSimGear Saitek Housings by w0vos
...el (same dimensions as a typical saitek panel) in case you are building a diy panel but need the housing to mount it to your rig.
thingiverse
free
Replacement stick for Saitek P880 by tulkaris
...ement stick por the analog controls in the saitek p880 gamepad. it has a 1mm hole in bottom which fits with the stick in the pad.
thingiverse
free
Saitek Quadrant Flap Angle Extension by muhammedyasarkaya
...oles can be opened/adjusted cutting by a knife easily.
just install it to saitek quadrant.
assign which hole you need and cut it.
thingiverse
free
Saitek flight panels top rack mount by Ghiotto
...saitek flight panels top rack mount by ghiotto
thingiverse
if you want to setup your saitek panels above your head.
thingiverse
free
Flaps and Speedbrakes Lever for Saitek Throttle Quadrant [V2] by FabianWiede
...or saitek throttle quadrant [v2] by fabianwiede
thingiverse
this is for the flaps and speedbrakes lever on your saitek throttle.
Yoke
turbosquid
$29
Yoke pendant
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
3d_export
$135
Cockpit Boeing 747 400 3D Model
...air pilot seat command lever captain fly flight cloche yoke take off boeing 747 400 cockpit boeing 747 400...
thingiverse
free
Scotch yoke by FaserMok
...scotch yoke by fasermok
thingiverse
scotch yoke
thingiverse
free
telescope yoke by Niedzwiedz
...telescope yoke by niedzwiedz
thingiverse
this is the part of rotating yoke of telescope.
thingiverse
free
700TVL Camera Yoke by lazymax05
...700tvl camera yoke by lazymax05
thingiverse
camera yoke for 700tvl cmos
thingiverse
free
8732-0108_POKE YOKE by c_bearden
...8732-0108_poke yoke by c_bearden
thingiverse
poke yoke fixture for laser etch
thingiverse
free
737 Yoke by bargy73
...se
this is my test run for a desktop 737ng yoke.
you can fit a 12mm bolt to the main body for support into a alloy shaft.
cheers
thingiverse
free
Yoke Bearing created in PARTsolutions by Dape
... bearing created in partsolutionshttp://b2b.partcommunity.com/community/partcloud/index#!part?name=yoke+bearing&model_id=6499
thingiverse
free
Scotch Yoke Fidget by jamcultur
...on. this version makes a unique fidget toy. when you turn the knob in a circle, the yoke moves back and forth in a straight line.
thingiverse
free
Scotch Yoke by WayTooManyHobbies
...k to turn on. i hope to add some features over the next few days so that this can serve as a basic demonstration of the linkage.
180
3ddd
$1
Ванная POLLSPA-Corazon-180-180
...dd
corazon , pollspa
ванная pollspa-corazon-180-180 примерно по каталогу. текстуры есть.
3ddd
$1
TENSO 180
...ddd
formina , ванна , джакузи
jakuzzi tenso 180
design_connected
$11
Bolero 180
...bolero 180
designconnected
poltrona frau bolero 180 computer generated 3d model. designed by lazzeroni, roberto.
design_connected
$20
Delta 180
...delta 180
designconnected
zanotta delta 180 2-seater computer generated 3d model. designed by emaf progetti.
design_connected
$27
Sayonara 180
...sayonara 180
designconnected
bbb emmebonacina sayonara 180 2-seater computer generated 3d model. designed by giorgio decursu.
turbosquid
$9
Office 180
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
turbosquid
$7
Chair 180
...d model chair 180 for download as max, max, 3ds, fbx, and obj on turbosquid: 3d models for games, architecture, videos. (1631404)
design_connected
$25
La Mise 180
...la mise 180
designconnected
la mise 180 computer generated 3d model. designed by nichetto, luca.
3ddd
$1
Rishar R-180
...ar r-180
3ddd
rishar , стол
кабинет rishar
стол руководителя r-180
размеры: 1800х880х790
3ddd
free
Riho / MONTREAL 180
...и
ванна riho montreal 180
длина 180
ширина 90
высота 47,5
объем 275
цвет euro white (европейский белый)
страна голландия / чехия
Flight
3d_export
$5
flight case
...flight case
3dexport
flight case
3ddd
$1
Zgallerie / Flight
...zgallerie / flight
3ddd
profi.кофейный , zgallerie
кофейный столик flight, zgallerie
archibase_planet
free
Flight suit
...archibase planet
flight suit clothing clothes
flight suit 2005-v3 n070712 - 3d model (*.gsm+*.3ds) for interior 3d visualization.
3ddd
$1
Flight
... zgallerie , приставной
приставной столик фирмы zgallerie
turbosquid
$19
Flight Recorder
...ee 3d model flight recorder for download as max, obj, and fbx on turbosquid: 3d models for games, architecture, videos. (1264654)
3ddd
$1
Flight Nicoletti Home
...flight nicoletti home
3ddd
nicoletti home , угловой
flight nicoletti home
turbosquid
$29
Flight of stairs
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
turbosquid
$20
Flight Hunter
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
turbosquid
$18
Flight Cases
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
turbosquid
$13
Flight case
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
Mod
design_connected
$13
MOD. 4233 - MOD. 4234 Table Lamp
...mod. 4233 - mod. 4234 table lamp
designconnected
arcahorn mod. 4233 - mod. 4234 table lamp computer generated 3d model.
design_connected
$11
MOD.1095
...mod.1095
designconnected
mod.1095 computer generated 3d model. designed by sarfatti, gino.
3ddd
$1
fireplaces mod Spec
...fireplaces mod spec
3ddd
камин
fireplaces mod spec 180x90x125h
3ddd
free
Flos Mod. 2129
... mod
фабрика: flos
модель: mod. 2129
описание: подвесной светильник, металл, белый, черный.
сайт: www.flos.com
turbosquid
$34
Mod Lamp.c4d
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
turbosquid
$32
MOD A 001
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
turbosquid
$29
Maars Mod
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
turbosquid
$15
Mod 70..
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
turbosquid
$10
MOD Sofa
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
turbosquid
$1
Mod-Lite
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
Degree
design_connected
$13
Degree
...degree
designconnected
kristalia degree computer generated 3d model. designed by norguet, patrick.
3ddd
$1
Kristalia Degree
... kristalia , круглый
http://degree.kristalia.it/
turbosquid
$2
Degree Brace 4
...el degree brace 4 for download as 3ds, max, obj, c4d, and fbx on turbosquid: 3d models for games, architecture, videos. (1205705)
turbosquid
$1
Degree Brace 3
...el degree brace 3 for download as 3ds, max, obj, c4d, and fbx on turbosquid: 3d models for games, architecture, videos. (1205719)
turbosquid
$1
Degree Brace 2
...el degree brace 2 for download as 3ds, max, obj, c4d, and fbx on turbosquid: 3d models for games, architecture, videos. (1205714)
turbosquid
$1
Degree Brace 1
...el degree brace 1 for download as 3ds, max, obj, c4d, and fbx on turbosquid: 3d models for games, architecture, videos. (1205710)
design_connected
$13
30 Degrees Pendant L
...30 degrees pendant l
designconnected
hay 30 degrees pendant l computer generated 3d model. designed by van hengel, johan.
turbosquid
free
30 degrees Tridimensional grid
...free 3d model 30 degrees tridimensional grid for download as on turbosquid: 3d models for games, architecture, videos. (1383401)
turbosquid
$27
45 Degree Pipe Connection
...e connection for download as c4d, 3ds, stl, obj, wrl, and fbx on turbosquid: 3d models for games, architecture, videos. (1687847)
turbosquid
$8
Norway flag on 25 degree pole
...ee 3d model norway flag on 25 degree pole for download as c4d on turbosquid: 3d models for games, architecture, videos. (1158107)
Rotation
3d_export
$5
rotation handle
...rotation handle
3dexport
rotation handle
3ddd
$1
ДуШ ROTATOR
...душ rotator
3ddd
душ
душ rotator
3d_export
$5
profile rotation handle
...profile rotation handle
3dexport
profile rotation handle
3d_export
$5
simple rotation handle
...simple rotation handle
3dexport
simple rotation handle
3d_export
$5
wrist rotation handle
...wrist rotation handle
3dexport
wrist rotation handle
3d_export
$5
needle rotation handle
...needle rotation handle
3dexport
needle rotation handle
3d_export
$5
heavy rotation handle
...heavy rotation handle
3dexport
heavy rotation handle
3d_export
$5
compound rotational handle
...compound rotational handle
3dexport
compound rotational handle
turbosquid
$29
rotating shelter
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
turbosquid
$18
Rotating Armchair
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
Pro
turbosquid
$29
Pro
...ree 3d model mac pro for download as obj, c4d, fbx, and blend on turbosquid: 3d models for games, architecture, videos. (1505782)
turbosquid
$15
Apple Mac Pro and Pro Display
...ee 3d model apple mac pro and pro display for download as max on turbosquid: 3d models for games, architecture, videos. (1417078)
3d_export
$5
iphone 13 pro max and pro
...3 pro max and 13 pro the model is made in four colors (graphite, gold, silver, and blue), all of which are attached in the files.
3d_export
free
sapphire pro
...sapphire pro
3dexport
sapphire pro 3d printer head mask
3d_export
$4
macbook pro
...macbook pro
3dexport
macbook pro 13" inch 2020 years model
3ddd
free
GentleLase Pro
... syneron , candela
gentlelase pro аппарат для лазерной эпиляции
turbosquid
$25
PRO frame
...rbosquid
royalty free 3d model pro frame for download as max on turbosquid: 3d models for games, architecture, videos. (1148329)
turbosquid
$5
Alien pro
...osquid
royalty free 3d model alien pro for download as blend on turbosquid: 3d models for games, architecture, videos. (1678446)
turbosquid
$5
iphone11 pro
...uid
royalty free 3d model iphone11 pro for download as blend on turbosquid: 3d models for games, architecture, videos. (1562707)
3ddd
$1
Mac Pro (appel)
...mac pro (appel)
3ddd
компьютер , apple
mac pro