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>> Home > Tags > speed controller

speed controller
speed contoller
radio control
contra rotating
contribution
contributions
high speed
speed 600
speed 900
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speed controller
Clyde Puffer by lesliebreame Admiral   Posted: 5 days ago
Correction on details of Hydro. Gordon tells me the boat is Japanese from the 1980's made by Gunze Sangyo . It has the original Mabuchi motor and mechanical speed wiper controller [gets very hot ! ] . The hull is fine glass fibre not plastic.

landing craft by Northumbrian Fleet Admiral!   Posted: 6 days ago
I built this from scrap wood i had lying around i bought the tanks from china the motor is a 850 mfa with a speed controller powered by a 11.1v 5000 mah battery still in progress 😉

E s c by Nobby-Clark Petty Officer   Posted: 27 days ago
Guys advice please. Speed controllers for my boat , viper too expensive alternatives please for the johnson 600 motors please. I’m pulling my hair out trying not to have todown grade motors. Regards Terry Nobby

Graupner Jumbo 540 motors by Will-I-Am Sub-Lieutenant   Posted: 1 month ago
Doug, The 6volt battery is currently an NiMh battery not an SLA. The problem was that according to Mtroniks the minimum voltage to the ESC to adequately run the BEC connection is 6volts. That is why I was getting erratic control when the battery voltage was 5.6 volts. The action speed controller will work 2-12 volts and I am going to use a separate receiver battery as suggested by Dave Milbourn just to make sure. Regards Will

Graupner Jumbo 540 motors by Will-I-Am Sub-Lieutenant   Posted: 1 month ago
Help required please, I have two Graupner Jumbo 540 6volt motors in an eboat circa 1978, I had fitted an Mtroniks speed controller replacing the Bob's board only to find that when the voltage dropped below 6 volts down to 5.6 volts I was experiencing intermittent operation of the esc. I have been informed by Mtroniks that the minimum voltage for operation of the esc is 6volts. Graupner have also confirmed that the maximum voltage for the Jumbo 540 motors is 6 volts. Do I have any alternatives other than refitting the Bob's board?

Marina by Will-I-Am Sub-Lieutenant   Posted: 2 months ago
[Score: 8/10] Capable of 6mph and a runtime of 60mins Single Propellor (3 Blade 25mm) Direct Drive to a 380 (3 Blade) Powered by NiMH (6v) 3Amp/h Batteries Controlled Through Mtronik 15 amp (5Amps) ESC - Comments: The boat is a Graupner kit from the late 1970s and has recently been updated with new Spektrum radio tx and Mtronik speed controller. and

Motor upgrade by Nobby-Clark Petty Officer   Posted: 2 months ago
Guys, hi I came down to hartsholme today to trial run the build and was made extremely welcome thanks greatly. Er motor widthThe motors are T4A from mobile marine they were extremely hot so prop size adjustment is needed. I am building again this time an inshore mine sweeper I have 50 mm graupner props on at the moment and am looking for a pair of motors to run off 12v LAB with 15 amp speed controllers per motor but cooler with out going to big I have 50mm per motor width allowance and 70mm length. I would like to keep up speed as inshore sweepers were fairly nippy 20knots real time. Is there any recommendations please ,apart from rebuild again. Regards Nobby

Windows, stoopid question. by Westquay Fleet Admiral!   Posted: 2 months ago
Hi Doug, I dread to think what a Proxxon version of a Jacobs chuck would run to. They seem to be outrageously expensive things. I only have a Proxxon drill because it was on a deal too good to miss, but the electronic speed controller went nappoo after a few weeks, so I cut it out and wired it direct, so it's flat out all the time. Having said that it has tolerated that for literally years since. I also use the Proxxon transformer to power my other mini tools, which are all the much missed and very reasonably priced Mini(Maxi)craft stuff. I have a circular saw, orbital sander and disc sander and all are plugged into the Proxxon power box when required. The circular saw must have cut miles of deck planking by now! Cheers, Martin

What do you do when... by onetenor Fleet Admiral!   Posted: 3 months ago
Morning Doug Yes gotcha. I was thinking heavy magnet like a speaker magnet. OR arrange a relay with a double throw switch to reverse the current and hence the motor. Piece of P-ss for you mate.Just have enough weight to avoid tangles as you strip the line from the reel and fine synthetic string better than fishing line. It is less likely to be pinched in the roll on the drum. Also more scale.You may want a speed controller or esc perhaps. Or just rely on the gear ratio. An old brushed motor would do I think with about 4volts.You may still need a pawl to prevent the load stripping line when power is off the motor. I hope I tickled your little grey cells mon ami. Bon chance👍

Warped wood by Westquay Fleet Admiral!   Posted: 3 months ago
Central heating. Death to nice wood. I have had central heating for the first time in my life these last 2 years and my china cabinet, which my Grandad made in the late 1920s has a crack you can pass a match through in the bow top. Grandad would be furious! But I've cut a diagonal in pear and forced it in under the smaller roof and that's sorted that one and the larger roof is already repaired in three corners with the fourth tomorrow. Already getting the slight droop out of the bigger one and glued with epoxy. I was delighted to find the square connector of the Taycol coupling still there along with the original Mersey Marine bow fender. Also the speed controller of my Proxxon drill, which went home very soon after I got the drill, so I ripped it out and wired straight through, so it's been flat out ever since! I wouldn't be without it though! I shall be pressing my epoxy into use to coat the ply both sides, using an old credit card to press it into the grain. Then this 54 year old baby will be good for another 54. Cheers, Martin

LED Tug Mast Navigation Lights by RNinMunich Fleet Admiral!   Posted: 3 months ago
OK Got 'em! N channel MOSFETS good for 180V, 4A DC and 16A Pulsed (as with our speed controllers) so more than enough for our 'little toys' 😊

LED Tug Mast Navigation Lights by RNinMunich Fleet Admiral!   Posted: 3 months ago
Hi Pete, Go easy with the prying!! You're right. The spring loaded button is the way in. But it can be very stiff and underneath the hatch is a dense foam rubber gasket which makes the hatch catch (😆) difficult to release. Press the button firmly down while trying to ease the hatch forward with your blade. In my basic version there ain't much underneath except the rudder servo. But that's where I intend to put a decent battery. Re electronic speed controller (AKA ESC); it MAY be on the cct board but I doubt it cos I don't see the FET power transistors for the outputs to the motors! Unless that's them in the bottom left corner in the second pic? In mine it's a separate square block with the heat-sink tabs of the transistors clearly visible. Trace the wires back from the motors to find yours😉 Everything else, RX and switched outputs, is on the cct board. Check out the blog with the link above and you will find all the secrets about removing the deck without busting anything👍 More later, ciao, Doug 😎

What Li-po? by Flack Fleet Admiral!   Posted: 4 months ago
I think that if you are considering changing to LiPo's then it is worth the complete transition and also move to brushless motors and appropriate speed controllers. However if you don't wish to go to the expense involved in such a move an appropriate battery size in Lipo would be 7.4v, the higher the capacity in mah will only increase the an mount of time it will last. I think the performance will prove to be exciting.

advise required by teejay Lieutenant   Posted: 4 months ago
Hi all and thanks to Ron and Doug I have not forgotten about the TGY-i6 set and have looked at the suggestions from Ron. I looked at a lot of stuff it can be a bit of mine field, I have fond this at Cornwall models Servo, Batteries, Charger & 15A ESC This pack provides the radio control unit and all items necessary to complete an RC boat kit. Certain models may need a motor Contents: 2-Channel transmitter Reflex Pro 3.1 2.4GHZ 5-Channel receiver, CS-3 steering servo (3kg/cm force) Transmitter batteries, 7.2v/2100mAh drive battery 15Amp Marine Electronic Speed Controller Plug charger Multi-lingual instructions Part No: CMBRCP15 I think this may be the way for me to go as it seem to have all the things I need to learn about in the one package, I know I may have to up grade some parts but for the first timer I think it would do your opinions would be much appreciated

advise required by teejay Lieutenant   Posted: 4 months ago
Hi all and thanks to Ron and Doug I have not forgotten about the TGY-i6 set and have looked at the suggestions from Ron. I looked at a lot of stuff it can be a bit of mine field, I have fond this at Cornwall models Servo, Batteries, Charger & 15A ESC This pack provides the radio control unit and all items necessary to complete an RC boat kit. Certain models may need a motor Contents: 2-Channel transmitter Reflex Pro 3.1 2.4GHZ 5-Channel receiver, CS-3 steering servo (3kg/cm force) Transmitter batteries, 7.2v/2100mAh drive battery 15Amp Marine Electronic Speed Controller Plug charger Multi-lingual instructions Part No: CMBRCP15 I think this may be the way for me to go as it seem to have all the things I need to learn about in the one package, I know I may have to up grade some parts but for the first timer I think it would do your opinions would be much appreciated