Thingiverse
Linear 31, 5/16-18 Thread by fastmike75
by Thingiverse
Last crawled date: 3 years ago
Another Redneck Linear, but this one gets the job done! This very universal Linear can be used with several sizes of motors from 270, 360, 370, 380 up to the 540. Uses 5/16-18 all thread rod and spinning hex nuts for motion. You are only limited with the linear travel by how long of threaded rod you can get. Has a range of gear ratios that can be uses to get the right speed and power you need. Will mount up several different ways and has mounts for miniature micro switches. Can mount up and push or pull through a bulkhead. You can use all or part of the linear depending on what you need it to do. Small enough to fit beside a 2 by 4 with motor laid on side. With motor speed controller linear could be used to move about anything with remote control.
The liner has two different A cases depending on the motor you want to use. The 540 case will handle most motors with 25mm mounting holes 1.409" case and 10mm bearing housing (550 will work with larger pinion gears, but you better fasten it down good!). The 380 A case will handle motors with 16 and17mm bolt centers, max motor OD of 1.092". The 540 case will go down to 93-14 gears and the 380 will go down to 93-10 gear ratio. Just added a .PDF gear ratio chart that shows what gears you can use and their ratio.
The spool (A gear - B gear) sandwiches a drilled Team Associated slipper clutch style spur gear with 1.25" octagon in between the halves with 5/16-18 hex nuts inside for contact with all threaded rod. Uses two 18x12x4mm sealed RC truck bearing on the spool. The Team associated gear I found easily on Amazon, they have a 93, 87, 84 and 75 tooth 48P gears. To figure the speed of the linear use the following example. The motor I am using is a Mabuchi RS540SH-7520 (purchased 4 of them new off ebay for $12.60), it is a 7.2V, 12A, 312 g-cm of torque at 19,000 RPM. The gearing is a 93 spur gear and a 14 tooth pinion, divide the pinion teeth by the spur teeth you get .1505 multiplier. Multiply your motor RPM times this number (or the spool is turning .1505 (15.05 percent) of the motor speed). 19,000 RPM times .1505, that is 2860 RPM that the spool is turning at the threaded rod. Take the RPM's at the rod times the thread pitch of the all threaded rod which is .05556 (that is how far it moves with one revolution of the spool). The rod moves 158.8" inches per minute, divided by 60 seconds is 2.648" of movement per second. With the 84-33 gear ratio and this motor it would have 6.91" of travel per second. That is wipin right along! If you use smaller motors with lower RPM things will slow up a lot, you will need torque to get taller ratios and speed. With the 540 motor and 93-14 gears with the liner case chucked in my vise it dead lifted a 5lb hammer and didn't even strain. But the RS540 is a powerful high Amp motor.
Need to talk about how to wire it up and the micro switches. You have to understand that I know just enough about electricity to get me in trouble! So please research your motor and ratings of switches to be safe. The RS540 motor is rated at 12Amps DC Volts. If you use micro switches to run the motor itself, be sure they are rated for 12Amps at DC volts not VAC. Big difference, most sub-miniature micro switches will only handle a fraction of the DC Amps that the switch will work with in AC Amps. I am using an Arduino board and a 2 channel relay to control the linear. The micro switches cut off the low 5 volts, .020 amps of the Arduino board through the relay, not the 12A of the motor. When get more time I will do some different wiring schematics for automotive relays and toggle switches, but there is already a lot of info online on this subject.
The micro switches have holders that will go on at several angles, and the case will rotate for placement of motor on top or sides. The switch triggers have 5/16 nut inside and one for a jam nut. Can be adjusted up and down the rod for the right shut off point of motor with switch.
Linear uses #4x3/8, #4x1/2 and a couple #4x3/4" sheet metal screws. Uses 1/4-20 bolts in the mounting bracket and yoke. You will need to drill with a "F" bit and tap the yoke to 5/18-18 thread.
Sill working on this so stay tuned for updates as I use it and get the switches working.
I tried printing some gears but they didn't turn out round enough or strong enough to work with that powerful of a motor at 19,000RPM. Just added some Team Associated Spur Gears to download. You will have to try them and see if they will work for the smaller motors. I would use a metal or plastic manufactured 48P pinion gear for the motor. Have fun and be safe!
Update June 2015: Hey everyone I found a really nice motor from Jameco #2144673 Mabuchi RS555PH-2330. The motor has 380 g-cm of torque and does it at a slower 5050 rpm. Much easier to manage and only 4amps at 12-30 volts. The motors are $3.95 each. I am using one on a new project lifting a 15lb metal blade on a RC Dozer and it has a lot more power than the RS540.
The liner has two different A cases depending on the motor you want to use. The 540 case will handle most motors with 25mm mounting holes 1.409" case and 10mm bearing housing (550 will work with larger pinion gears, but you better fasten it down good!). The 380 A case will handle motors with 16 and17mm bolt centers, max motor OD of 1.092". The 540 case will go down to 93-14 gears and the 380 will go down to 93-10 gear ratio. Just added a .PDF gear ratio chart that shows what gears you can use and their ratio.
The spool (A gear - B gear) sandwiches a drilled Team Associated slipper clutch style spur gear with 1.25" octagon in between the halves with 5/16-18 hex nuts inside for contact with all threaded rod. Uses two 18x12x4mm sealed RC truck bearing on the spool. The Team associated gear I found easily on Amazon, they have a 93, 87, 84 and 75 tooth 48P gears. To figure the speed of the linear use the following example. The motor I am using is a Mabuchi RS540SH-7520 (purchased 4 of them new off ebay for $12.60), it is a 7.2V, 12A, 312 g-cm of torque at 19,000 RPM. The gearing is a 93 spur gear and a 14 tooth pinion, divide the pinion teeth by the spur teeth you get .1505 multiplier. Multiply your motor RPM times this number (or the spool is turning .1505 (15.05 percent) of the motor speed). 19,000 RPM times .1505, that is 2860 RPM that the spool is turning at the threaded rod. Take the RPM's at the rod times the thread pitch of the all threaded rod which is .05556 (that is how far it moves with one revolution of the spool). The rod moves 158.8" inches per minute, divided by 60 seconds is 2.648" of movement per second. With the 84-33 gear ratio and this motor it would have 6.91" of travel per second. That is wipin right along! If you use smaller motors with lower RPM things will slow up a lot, you will need torque to get taller ratios and speed. With the 540 motor and 93-14 gears with the liner case chucked in my vise it dead lifted a 5lb hammer and didn't even strain. But the RS540 is a powerful high Amp motor.
Need to talk about how to wire it up and the micro switches. You have to understand that I know just enough about electricity to get me in trouble! So please research your motor and ratings of switches to be safe. The RS540 motor is rated at 12Amps DC Volts. If you use micro switches to run the motor itself, be sure they are rated for 12Amps at DC volts not VAC. Big difference, most sub-miniature micro switches will only handle a fraction of the DC Amps that the switch will work with in AC Amps. I am using an Arduino board and a 2 channel relay to control the linear. The micro switches cut off the low 5 volts, .020 amps of the Arduino board through the relay, not the 12A of the motor. When get more time I will do some different wiring schematics for automotive relays and toggle switches, but there is already a lot of info online on this subject.
The micro switches have holders that will go on at several angles, and the case will rotate for placement of motor on top or sides. The switch triggers have 5/16 nut inside and one for a jam nut. Can be adjusted up and down the rod for the right shut off point of motor with switch.
Linear uses #4x3/8, #4x1/2 and a couple #4x3/4" sheet metal screws. Uses 1/4-20 bolts in the mounting bracket and yoke. You will need to drill with a "F" bit and tap the yoke to 5/18-18 thread.
Sill working on this so stay tuned for updates as I use it and get the switches working.
I tried printing some gears but they didn't turn out round enough or strong enough to work with that powerful of a motor at 19,000RPM. Just added some Team Associated Spur Gears to download. You will have to try them and see if they will work for the smaller motors. I would use a metal or plastic manufactured 48P pinion gear for the motor. Have fun and be safe!
Update June 2015: Hey everyone I found a really nice motor from Jameco #2144673 Mabuchi RS555PH-2330. The motor has 380 g-cm of torque and does it at a slower 5050 rpm. Much easier to manage and only 4amps at 12-30 volts. The motors are $3.95 each. I am using one on a new project lifting a 15lb metal blade on a RC Dozer and it has a lot more power than the RS540.
Similar models
grabcad
free
Coreless Micro Dc Motor 30.000 Rpm 3.7 Volt With Plastic Gear
...
http://www.robotpark.com/micro-dc-motor-30000-rpm-3-7-volt-with-gear
more micro motors:
http://www.robotpark.com/micro-dc-motor
grabcad
free
Micro Dc Motor 20.000 Rpm 3 Volt
...link:
http://www.robotpark.com/micro-dc-motor-20000-rpm-3v-metal-gear
more micro motors:
http://www.robotpark.com/micro-dc-motor
grabcad
free
Triple epicycloid spur gear drive
... – gear ratio 8:1
spur gear stage – 2:1
total gear ratio = 8*8*8*2=1024
at input speed from 1000(1024) rpm.
output speed 1 rpm.
thingiverse
free
Linear 25HD Heavy duty 1/4" rod by fastmike75
.... there is a photo gallery of the rc dozer build on my website http://www.fastmiketanks.com/
hope you will find many uses, enjoy!
thingiverse
free
Open RC F1 - 32dp Spur Gear Mod by jamerson90
...included a 20t gear in order to keep a similar gear ratio to stock. 40t/14t = 2.857 gear ratio...
thingiverse
free
Linear 25, 1/4-20 Thread, Std CR Servo by fastmike75
...s let me know.
still having trouble with threads, you will have drill to .200" and run a 1/4-20 tap in the yoke for threads.
grabcad
free
Gear Box _One stage
... gearbox –one stage that transmits (7.5 kw) from an electric motor, with a speed of 2800 rpm, and a speed reduction ratio of 3:1.
grabcad
free
Gear Box _One stage
... gearbox –one stage that transmits (7.5 kw) from an electric motor, with a speed of 2800 rpm, and a speed reduction ratio of 3:1.
thingiverse
free
Kyosho Blizzard FR Dual 380 Transmission
...ersion.
find the instructions and parts needed here : https://www.thingiverse.com/thing:4168444
the motor bolts spacing is 16mm *
grabcad
free
Coreless Micro Dc Motor 30.000 Rpm 3.7 Volt
...oduct link:
http://www.robotpark.com/micro-dc-motor-30000rpm-3-7-volt
more micro motors:
http://www.robotpark.com/micro-dc-motor
Fastmike75
thingiverse
free
Universal Mini Servo Base by fastmike75
...t; wide and .925" tall. servo opening .910" with1.100" mounting screw centers. uses (4) #4 screws in base corners.
thingiverse
free
Slash 4x4 overtray fan vent by fastmike75
...n overtray to keep rocks out and give fans enough air. use with the slash 4x4 overtray air scoop for better cooling and air flow.
thingiverse
free
Dunlop Strap Lock Washer by fastmike75
...r the strap lock.
make with raft and support. drill out center to 3/8" if needed. the raised side goes under the button cap.
thingiverse
free
Assorted Bone Arm Lengths for Linear, Door opener. by fastmike75
...dding some others so you can have a good assortment to choose from. measurements on the bones are center of eye to center of eye.
thingiverse
free
Mini 26mm 1" Muffler Tube Clamp by fastmike75
... surface on 1" od pipe or tube.
i was very suprised at how strong this clamp is printed fully filled. 3d print with support.
thingiverse
free
Bumper for Radio Shack 276-150 Circuit Board by fastmike75
...in zip socket for the micro. wired everything up to use futaba servo connectors that plug into the board and wired to micro pins.
thingiverse
free
Linear, MG90S Micro servo by fastmike75
...uot;) thick. use small flat washer and 4x1/4 screw for rack to hold arm. if you need some assorted length arm bones, let me know.
thingiverse
free
Tank Front Cowl Lights by fastmike75
...p in holders i got from radio shack.
added some screw holes on bottom so you can break the clip off and screw these on something.
thingiverse
free
Pulley Backer for Bowflex Max Trainer by fastmike75
...ts for good hold, print 50% or over for strength.
here is a video of the installation:https://www.youtube.com/watch?v=ox5qbsafvk0
thingiverse
free
Slash 4x4 overtray side rails LCG by fastmike75
...is for the right side. it has a push button rocker switch to turn esc on and off with overtray on.
switch button is very handy!
31
design_connected
$16
No. 31 Chair
...no. 31 chair
designconnected
no. 31 chair computer generated 3d model. designed by kristiansen, kai.
turbosquid
$13
building 31
...osquid
royalty free 3d model building 31 for download as max on turbosquid: 3d models for games, architecture, videos. (1362482)
turbosquid
$20
Curtains 31
...royalty free 3d model curtains 31 for download as max and obj on turbosquid: 3d models for games, architecture, videos. (1333946)
3ddd
free
kerabad 31
...kerabad 31
3ddd
kerabad
www.kerabad.de
turbosquid
$16
Sofa 31
...yalty free 3d model sofa 31 for download as max, obj, and fbx on turbosquid: 3d models for games, architecture, videos. (1503051)
turbosquid
$15
Chair 31
...alty free 3d model chair 31 for download as max, obj, and fbx on turbosquid: 3d models for games, architecture, videos. (1497258)
turbosquid
$13
Houseplant 31
...free 3d model houseplant 31 for download as max, obj, and fbx on turbosquid: 3d models for games, architecture, videos. (1336595)
turbosquid
$10
Pillows 31
...ty free 3d model pillows 31 for download as max, fbx, and obj on turbosquid: 3d models for games, architecture, videos. (1531217)
turbosquid
$6
Table 31
...alty free 3d model table 31 for download as max, obj, and fbx on turbosquid: 3d models for games, architecture, videos. (1503842)
turbosquid
$6
Sculpture 31
... free 3d model sculpture 31 for download as max, obj, and fbx on turbosquid: 3d models for games, architecture, videos. (1502704)
Linear
3ddd
$1
Linear Diffusers
...linear diffusers
3ddd
диффузор
set of linear diffusers for ceiling.
design_connected
$27
Linear Sofa
...linear sofa
designconnected
scp linear sofa computer generated 3d model.
design_connected
$18
Atlantis linear
...atlantis linear
designconnected
terzani atlantis linear pendant lights computer generated 3d model. designed by barlas baylar.
3d_export
$5
light linear unit
...light linear unit
3dexport
light linear unit
turbosquid
$5
Linear Actuator
...
royalty free 3d model linear actuator for download as blend on turbosquid: 3d models for games, architecture, videos. (1589061)
turbosquid
$29
Linear panel
...oyalty free 3d model linear panel for download as max and obj on turbosquid: 3d models for games, architecture, videos. (1391254)
turbosquid
$12
Linear Chandelier
...y free 3d model linear chandelier for download as max and obj on turbosquid: 3d models for games, architecture, videos. (1574289)
turbosquid
$10
Grohe Lineare
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
turbosquid
$10
Linear Axis
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
3d_export
$5
Linear Unit 3D Model
...linear unit 3d model
3dexport
linear unit force torque velocity
linear unit 3d model fau 71218 3dexport
Thread
3d_export
$5
threaded handle
...threaded handle
3dexport
threaded handle
turbosquid
free
threaded
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
3d_ocean
$5
Tangle of thread
... tangle thread triangles – 36 in one strand in scene 300 thread includes materials includes 3 colors tangle thread in psd for ...
3d_export
$5
threaded lock handle
...threaded lock handle
3dexport
threaded lock handle
3d_export
$5
threaded machine handle
...threaded machine handle
3dexport
threaded machine handle
3d_export
$5
threaded door knob
...threaded door knob
3dexport
threaded door knob
3d_export
$5
threaded rope ring
...threaded rope ring
3dexport
threaded rope ring
3d_export
$5
threaded door knob
...threaded door knob
3dexport
threaded door knob
turbosquid
$56
Threaded Inserts
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
turbosquid
$10
Thread Lamp
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
18
3ddd
$1
Remains / Sorenson 18 Lantern HL2617 18
... remains , светильник
remains - sorenson 18 lantern hl2617 18
3d_export
$6
rocks 18
...rocks 18
3dexport
rocks 3d model 18
3ddd
$1
Bed 18
...bed 18
3ddd
постельное белье
bed 18
3d_export
$6
tap-18
...tap-18
3dexport
3d_export
$17
F-18 Performance
...f-18 performance
3dexport
f-18 performance
3ddd
$1
Curtains 18
...curtains 18
3ddd
curtains 18 (3 models)
polys: 543000
other models:http://3ddd.ru/users/brast/models
3ddd
$1
ALBA p160-18
...alba p160-18
3ddd
alba
alba p160-18
turbosquid
$40
cottage 18
...bosquid
royalty free 3d model cottage 18 for download as max on turbosquid: 3d models for games, architecture, videos. (1377004)
turbosquid
$10
building 18
...osquid
royalty free 3d model building 18 for download as max on turbosquid: 3d models for games, architecture, videos. (1362221)
turbosquid
$7
Rock 18
...turbosquid
royalty free 3d model rock 18 for download as obj on turbosquid: 3d models for games, architecture, videos. (1486413)
16
3ddd
$1
Bed 16
...bed 16
3ddd
постельное белье
bed 16.hope you like it.thanks you very much
design_connected
$4
Bolla 16
...bolla 16
designconnected
gervasoni bolla 16 coffee tables computer generated 3d model. designed by michael sodeau.
3d_export
$6
tap-16
...tap-16
3dexport
3d_export
$6
set-16
...set-16
3dexport
3ddd
$1
16 Mobilier ALIXE
... уличная , мебель
производитель: 16 mobilier
модель: alixe
3ddd
$1
Curtains 16
...curtains 16
3ddd
ламбрикен
curtains 16
polys: 350077
other models:http://3ddd.ru/users/brast/models
turbosquid
$199
F-16
...16
turbosquid
royalty free 3d model f-16 for download as max on turbosquid: 3d models for games, architecture, videos. (1188169)
turbosquid
$128
DF-16
...6
turbosquid
royalty free 3d model df-16 for download as max on turbosquid: 3d models for games, architecture, videos. (1660349)
turbosquid
$40
cottage 16
...bosquid
royalty free 3d model cottage 16 for download as max on turbosquid: 3d models for games, architecture, videos. (1377002)
turbosquid
$20
Decor 16
...urbosquid
royalty free 3d model decor 16 for download as stl on turbosquid: 3d models for games, architecture, videos. (1676913)
5
turbosquid
$6
Rock 5-5
...urbosquid
royalty free 3d model rock 5-5 for download as obj on turbosquid: 3d models for games, architecture, videos. (1639063)
3d_export
$5
hinge 5
...hinge 5
3dexport
hinge 5
turbosquid
$10
A-5
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
turbosquid
$2
A-5
... available on turbo squid, the world's leading provider of digital 3d models for visualization, films, television, and games.
turbosquid
$12
Calligraphic Digit 5 Number 5
...hic digit 5 number 5 for download as max, obj, fbx, and blend on turbosquid: 3d models for games, architecture, videos. (1389333)
3ddd
$1
5 роз
...5 роз
3ddd
5 роз в стеклянной вазе
design_connected
$11
iPhone 5
...iphone 5
designconnected
apple iphone 5 computer generated 3d model.
3ddd
$1
Lola 5
...lola 5
3ddd
miniforms
lola 5 miniforms 300*65*134
3ddd
$1
Nexus 5
...dd
nexus , phone , телефон
google nexus 5 phone
3d_ocean
$15
iPhone 5
...iphone 5
3docean
3d 4d apple cinema iphone model modeling phone screen texture
iphone 5 3d model and texture realistic iphone 5.