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Sonic Shifter

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Original price $318.00
Original price $318.00 - Original price $318.00
Original price $318.00
$129.00 - $159.00
$129.00 - $159.00
Current price $129.00
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  • Description
  • Specifications
  • Note: This gearbox is only available at this heavily discounted price in this ratio while supplies last. If you want more choice in ratios please see our current generation of shifting gearbox, the EVO Shifter


    This two speed transmission gearbox provides speed and torque when necessary. Four different gearing ratios are available for this top-of-the-line, robust gearbox. This shift-on-the-fly gearbox, uses a dog gear shifting method. Motor input accepts two NEO, or CIM motors.
    The output shaft is a round 1/2 in. 4140 steel shaft with a 1/8 in. keyway.

    The Sonic Shifter is no longer offered in the versions containing the 17 tooth cluster gear. We recommend looking at the EVO shifter if interested in a wider variety of gear ratio options.

    Key Features:


    • The output shaft is centered on the gearbox.
    • CIM motor inputs centered on the gearbox.
    • The Sonic Shifter is lighter than the AM Shifter and Super Shifter designs.
    • Will be shipped with an am-3132 encoder pre-installed.

    Sonic Shifter Ratio Breakdown:

    A color coded graphic accompanied by a ratio breakdown shows which gears are used where and what ratios they form for each sonic shifter.
    Sonic Shifter Ratio Breakdown (Not all options shown on this document are available)

    Shift Style:


    Two shifting methods are available for the Sonic Shifter. The pneumatic method is much stronger and faster than the servo method.
    • Pneumatic:
      • A pneumatic cylinder, Bimba model 04-0.5-DP, 3/4 in. bore x 1/2 in. stroke, (not included) shifts between high and low gear. This cylinder mounts with a 5/8-18 nut (not included). This is a strong, fast method of shifting, lasting under 0.5 seconds and pushing with 26 pounds of force (if using 60 psi). This pneumatic shift can be done while a robot is accelerating.
    • Servo:
      • A Servo Shifting hardware pack is available (am-2297), but not included with this product.
      • A Hi-Tech Servo, model HS-422HD is included in am-2297, using an actuation fork to shift between the 2 gear settings. This is a slow, weaker method of shifting (compared to pneumatic), taking 1.5-2 seconds and pushing with up to 8.5 pounds of force. A robot driver may need to back off of the throttle to let a servo shift gears while moving.
    Product Usage:
    All AndyMark gearboxes require grease for proper operation and long life. We suggest using our red tacky grease, am-2768. We also encourage that the user powers the gearbox continuously for 30 minutes without grease to allow the gear teeth to wear in. While we do design with short run times in mind, this 'run in' period for smooth gearbox operation is recommended. Once this is completed, thorough grease the gear teeth periodically to ensure smooth operation.

    Thanks to Evan from 2470 and Sean from 2489 for our new gearbox name, the "Sonic Shifter."
    • Motor Input: CIM, NEO
    • Motor Quantity: 1, 2
    • Weight: 4.2 lbs.

Customer Reviews

Based on 5 reviews
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K
KS from Milford
The Preferred Drive Base Gearbox by 1519 for Most of a Decade!

The Sonic Shifter has been 1519's preferred drive base gearbox for most of a decade, starting in 2014 and continuing through the 2019 FRC game. We love the durable construction, good performance, ratio versatility, and minor evolutionary updates that were made over the years. By essentially re-using most of the components from the prior Super Shifter, and releasing minor updates from year-to-year, teams could reduce costs by re-using old gearboxes and just purchasing new upgrades when needed.

Oh, and did I mention that these gearboxes are tough as nails? I wouldn't be surprised if we have over 1000 hours of driving time on these gearboxes (250 hours in each of 4 years) and we've never had a gear, bearing, or shaft wear out. (We have had some issues with the pneumatic shift mechanism, but the core gearbox is as rugged as could be.)

We're sorry to see that this product is approaching end of life, as they have been the go-to gearbox for our best robots so far!

C
CS from Merrimack
'Sonic Shifter Problems'

'Team 166 used these transmissions this year. At our Week 6 competition in Lewiston, the 17t gear in the last gear reduction split in half at the keyway, as the wall thickness at the minor diameter of the gear is about 0.060'. Many of the gears are keyed improperly, so that the corners of the keyway are at the minor diameter of the gear. We have destroyed three of the 17t gears this season. The gear in the right transmission broke in one of our last qualification matches in the Curie Division causing us to fall from 1st to 10th place, costing us the opportunity to create a powerful alliance. At the World Championship, I approached Andymark with our concerns regarding the 17t gear in particular, and I believe that is is unlikely that Andymark will do anything to improve the quality of this product. If you would like to see pictures of the broken gears, feel free to reach out to Chop Shop 166.

Email: [****]
Twitter: @chopshop166

(AndyMark Reply 05/31/16: Thank you for this informative review. We did talk to your team at the FIRST Championships, and we are sorry this part broke. We are working on a solution for this problem, but it may change the final ratio of the shifter gearboxes.)'

K
KO
'My team's story'

'My team wanted to order the set, but it was unavailable due to backorder. So we ordered one of the sonic shifter options along with some other items. The other items came in, but the shifters ended up on backorder. Everything turned out to be okay when they arrived except that we needed the shafts (which was a bummer because we really wanted to practice with the drive train to try out drivers and program and such). Our programming team wasn't as strong this year and had a difficult time adjusting to them. Our automatic shifting sounded like popcorn during a majority of our testing. This may have contributed to our main problem with them, the shafts continuously slip out of the gearbox. This prevents our encoders from functioning properly and compromises our shifting. We're not sure if this is due to misuse or product malfunction so we'd appreciate feedback from other teams who used the sonic shifters regarding this problem.'

A
Ay from Grosse Pointe
'Good Overall with a Glaring issue'

'Our Sonic Shifters arrived with the long aluminum hex shafts as an option to use in place of the one in the shifter. These shafts are not usable because the quarter inch diameter portion that goes into the encoder is too short to actually reach the encoder, also my team has heard of other teams twisting their aluminum hex shafts in competition so we have had to spend significant time manufacturing parts that should not have to be made in the first place. Other than that problem the shifters themselves seem to be fine'

B
BT from Northwood
Review

5 Stars

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