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RE: Modify hs815 bb
You can buy a HS805MG from Servo City for $60. This is basically the 815 with continuous rotation. You can modify your 815bb. According to this list http://www.servocity.com/html/rotation_modification_difficul.html it is a 6 difficulty level on a scale of 1 to 10. Your choice. I posted a reply to your other servo inquiry you might want to read.
Posted on: 8/21/2012 10:12 PM by Author "mainiac68"
in the forum "RC Sailboats"
http://www.rcuniverse.com/forum/fb.asp?m=11201719
RE: Sail Servos
Did you get your problem solved? The 815BB should have all the power you need. 140degrees may be enough depending on how long your sail winch servo arm is/ how much haul you need/ and if you use single or double purchase method of hauling sheets(lines). A simpler solution if you need 180 degrees of travel is to buy a servo stretcher ($20 at ServoCity) http://www.servocity.com/html/hs-815bb_mega_sail_arm.html http://www.servocity.com/html/180o_servo_stretcher.html Hope this helps.
Posted on: 8/21/2012 10:02 PM by Author "mainiac68"
in the forum "RC Sailboats"
http://www.rcuniverse.com/forum/fb.asp?m=11201714
basswood vs balsa for planking
Hi all. I'm resuming a boat build I started years ago. I started planking then with clear pine I ripped into 1/8"T x 3/8"W x 5'L lengths. After just beginning and getting about 8 planks on either side of the keel it got shelved. Years later I'm retired in Florida so I dragged it out but I no longer have the shop gear I had then. I went to the local hobby shop and bought a length of 1/8"x3"x36" balsa for about $3.50 and picked up a balsa stripper also.The stripper worked well and I put on two planks each side and I am underwelmed by the balsa compared to the sturdiness of the pine planking. I went on balsausa.com and priced the amount of basswood I would need and it is very reasonable. Will basswood conform to the bends of the hull by soaking in ammonia like pine will? I would put the pine in a capped piece of pvc pipe and cover with ammonia (not the sudsy kind) and let it soak from a few hours to overnight. Then it was soooooo pliable I could clamp and let dry, then glue up. When clamped and glued I drill through the planks into the formers (stations) and glue the hole and drive a peg in. It makes one sturdy hull. Does anyone plank with basswood like this?
Posted on: 7/19/2012 10:52 AM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=11161301
RE: metal boat hull
My 18' Lund floats. Steel boats float. There even have been cement boats and they float. Yup, done right it will float. Hope you post pics as you don't see aluminim done very often. Get out them tin knockin' tool and have at it. Good Luck!
Posted on: 7/18/2012 11:21 AM by Author "mainiac68"
in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=11160062
planking with basswood
Hi all. I'm resuming a boat build I started years ago. I started planking then with clear pine I ripped into 1/8"T x 3/8"W x 5'L lengths. After just beginning and getting about 8 planks on either side of the keel it got shelved. Years later I'm retired in Florida so I dragged it out but I no longer have the shop gear I had then. I went to the local hobby shop and bought a length of 1/8"x3"x36" balsa for about $3.50 and picked up a balsa stripper also. It worked well and I put on two planks each side and I am underwelmed by the balsa. I went on balsausa.com and priced the amount of basswood I would need and it is very reasonable. Will basswood conform to the bends of the hull by soaking in ammonia like pine will? I would put the pine in a capped piece of pvc and ammonia (not the sudsy kind) and let it soak overnight. Then it was soooooo pliable I could clamp and let dry, then glue up. When clamped and glued I drill through the planks into the formers (stations) and glue the hole and drive a peg in. It makes one sturdy hull. Does anyone plank with basswood like this?
Posted on: 7/18/2012 11:15 AM by Author "mainiac68"
in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=11160053
RE: reostat type speed controller help
If you go with a replacement for your MSC remember that resistor gets HOT HOT at less than full speed, so keep distance from plastics. The Mtroniks Viper Marine works good but makes the motor squeal like a pig; not good in scale but OK if you"re just running around full speed ahead.
Posted on: 7/9/2012 9:56 PM by Author "mainiac68"
in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=11149552
RE: 56
Hey Tom. I read something interesting on a review from the Fleabay link. Because the unit has an "oil pan" sort of, it can only run safely at a certain range of angles. I'll have to go back to Home Depot and take a closer look to see if I can tell if I can lay it down enough to sit in the hull correctly. If not then maybe modify the base to make it work.
Posted on: 7/9/2012 9:44 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=11149542
RE: 56
Thanks for the info. Looks like this is getting easier and cheaper by the minute. This is going to be interesting. I'll keep you informed as to how it goes. !st get it. Then start it to make sure it runs OK. Then strip down to (A) get it ready for marine use and (B) start planning for electric start. I know that the electric start will add work, parts and pieces but but you know how it is when you want what you want . Thanks again Fred
Posted on: 7/9/2012 9:36 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=11149538
RE: 56
Never seen a Troybilt with a grey cover and I've never been inside a 4cycle trimmer engine. BUT, you can fix most everything if it's worth it.
Posted on: 7/9/2012 9:30 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=11149533
RE: 56
Went to Lowes and Home Depot and checked online. Lowes has the Troybilt TB575EC 29cc 4cycle straight shaft trimmer for $199 and the Jumpstart is $47. The trimmer (none on display) appears to be like ant 2cycle in size. The Jumpstart is basically a battery, switch, gear drive and the output shaft is a hex drive (allen wrench) so would be easily duplicated with available materials. They also have a 4cycle leaf blower which is 25cc (model TB4HB) and is $170. The Troybilt web site wasn't very helpful. Home Depot has Ryobi and have displayed two 4cycle machines: a RY 34440 (S340) straight shaft 30cc trimmer for $199 and a RY34420 (C430) curved shaft 30cc trimmer for $174. The weight and feel of these are indistinguishable from 2cycle machines IMO. Ryobi sells refurbished machines online. The 34440 is listed at $150 (plus shipping) and the cheaper curved shaft 34420 is $130. Since both are 30cc and just the engine would be used the cheaper one makes sense. Both have good reviews. Here are th links: http://www.cporyobi.com/factory-reconditioned-ryobi-zrry34440-30-cc-gas-powered-18-in-straight-shaft-string-trimmer/ryorzrry34440,default,pd.html?start=6&cgid=ryobi-trimmers http://www.cporyobi.com/factory-reconditioned-ryobi-zrry34420-30-cc-gas-powered-18-in-curved-shaft-string-trimmer/ryorzrry34420,default,pd.html After looking ove the Ryobi trimmers I don't see any problem with stripping them down and adapting them for marine use like any other brand of 2cycle as we've done in the past. I'm going to check several local dealers to see if they have any returns kicking around and to get some input as to how they compare to the 2cycle versions. It's looking good so far. Fred
Posted on: 7/9/2012 2:41 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=11149093
RE: 56
WOW! 96" PTB-nice! Do you have any pics posted somewhere? I only have 56" to work with but am looking for power but not speed so gear ratio could enter in. The trolling motor doesn't overheat running out of water? Look forward to pics.
Posted on: 7/9/2012 1:02 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=11148995
RE: 56
Going Monday. Saturday was wife day and this Sunday had church duties. Will let you know tomorrow.
Posted on: 7/8/2012 2:57 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=11147827
RE: 56
I found the Troybilt 4 cycle trimmer online and it takes the electric start accessory. Not sure if that will be useable in it's present form but I plan to go to Lowes to see if they have one in stock for a closer look.
Posted on: 7/4/2012 5:53 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=11143244
RE: 56
Thanks Tom, I will do some research on four stroke machines. The idea is that the engine must idle slow and when operating I don't want to hear engine noise just exhaust noise. The engine will be reduced to bare essentials ( no cowling etc and will be redesigned for electric start) That boat looks GREAT! We used to water cool DIY before all that was popular but I've never done a Ryobi. The others we just left the top cooling fin on the head, took out all but the bottom one, made a jacket of thin aluminum and wrapped it. We used JB Weld to fasten and seal edges and inserted tubes for in/out. No fancy machine work required. Yes it sounds crude but you can do a good job and most importantly it works great. I will have an electric pump for cooling and a fan if needed. The 56" hul has loads of room and can carry lots of weight. It is a tug after all. Fred
Posted on: 7/4/2012 12:43 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=11142905
RE: 56
Hey Areseaer, thanks for the idea but read my post to KMOT. A four stroke engine sounds like it could be tamed to give the operation approaching scale idle, sound, etc. The planning phase continues.
Posted on: 7/1/2012 8:36 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=11139356
RE: 56
Hey, KMOT, that's very good idea. I had not considered that these engines would be four stroke but that would be waaay better for all your reasons. I'll have to check here for availability but I think they are all still 2strokes. I have located info on a reverse gear that would work and the typical clutch on these engines would probably have to be reworked to engage at a lower rpm. The 4strokes idle better in the new machines? Thanks for the info.
Posted on: 7/1/2012 8:32 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=11139353
RE: Stars and Stripes prodject
Way to go! Look forward to seeing pics of it on the water (or on the stand as well). After you sail for awhile you can start to adjust for smoother and better performance. Good Luck!
Posted on: 6/21/2012 3:53 PM by Author "mainiac68"
in the forum "RC Sailboats"
http://www.rcuniverse.com/forum/fb.asp?m=11127046
RE: 56
Interesting responses so far. The "Kitchen rudder" might be something I'ld like to use in the future but not this one. The tug is modelled after a LT Army tug. Originally built as steam, this would represent a later configuration after being refitted to diesel.The scale prop will be 3.5 in. or 4 in. (can't remember without looking up) I can fit the performance of the gas engine to the boat by sizing the prop diameter and pitch. I've done electric for 25 years so am quite familiar wiht that whole scene. As this boat was originally built for steam and I have a single and a boiler built by a friend but it is not reversing. Also, steam is a whole different commitment to the model and I have numerous things to build before that. I am in southwest Florida and am surrounded by water to sail in; ponds, canals, lakes, etc. Organized RC boating is done in many parks and I've only been to a handfull and know three that allow IC. Anyway, I've run weed wacker motors but just in fast hulls, none in scale. I have seen it though and that's why I'm interested. From my limited knowledge of full scale workboats ( derived from fishing and lobster boats) I would need a gearbox that is basically in/out and reversing. Conveniently the gas motor is clutched so that problem is taken care of. So, discounting electric completely........any ideas?
Posted on: 4/13/2012 7:24 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=11040940
56" gas powered tug
Hi all, I'm planking the hull on a 56" tug and am considering a 22cc gas for power. This hull may end up being a plug so the finished hull may be fiberglass. Anyway, I'll need some kind of reversable transmission/gearbox using a servo or solenoid for reverse activation. I would add a starter also to eliminate pull starting. It will be water pump cooled and have an exhaust system as needed. The tug was originally going to be steam but maybe the next one. I've built RC boats; scale, sail and fast electric but I'm not a machinist so I'm looking for an existing product or one that can be modified and adapted to this use, or scratch built if simplified enough for common hand and power tools. Anyone have some ideas?
Posted on: 4/8/2012 9:38 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=11033931
RE: Am I the only one.....
Me too, been spending less time here. Love the forum but have been looking around. Will get back here often to see how it's going.
Posted on: 3/5/2012 4:41 PM by Author "mainiac68"
in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10987904
RE: Squeal screech whine from my ESC
Thanks, I'll look at it. I used several Astro Flight 207's for FE applications and was VERY pleased with them. Also used his charger and cobalt motors, good stuff for sure.
Posted on: 2/11/2012 1:31 AM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=10953759
RE: Squeal screech whine from my ESC
Thanks for the input. The noise is from the motor windings. Just to help me understand this I set up the gear on a board and proceeded to run 10 differant motors. And the noisey results were all the same in varying degrees of volume. I tried everything from a small hobby motor to a Astro Flight 05 to a large 870 motor. An inquiry to Mtroniks reveals that most/all motors will give the same result. Pretty poor results I'ld say. After spending hundreds of hours and hundreds of dollars on a scale boat only to have it sound like a screaming Banshee is most disappointing. Scale operation involves more than just a proportional throttle. I just don't understand why anyone would settle for something like this Viper Marine 25 to power something you've worked so hard on, or why the company would market it so. The web site says this is a "no nonsense" esc for scale boats. You must have to pay extra for the "nonsense" of quiet operation. If all the Mtroniks ESC's are based on the same technology I'm done with those. I will begin my search to rectify this problem with another product. This Marine 25 ESC will be relegated to the bowels of the 56" tug to operate a bow thruster. I've read good things about a product from Action Electronics and there are several more I'm going to look into. This will also benefit me on my tug project and other scale boats planned for the future. So lesson learnedmy bad research research research before you buy.
Posted on: 2/10/2012 4:13 AM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=10952450
Mtroniks Viper Marine 25 ESC
Hi everyone. I just ressurected my 20+ year old Midwest lobster boat as I have re-entered the hobby. A new electronic speed control was needed and I bought and installed a Marine 25 from Mtroniks in the UK. It is proportional and smooth with the exception of the last 20% or so of fwd throttle. At 75 or 80% she just goes all in. That's really OK though. The problem is this ESC causes extreme noise from the motor due to whatever frequency the esc is working at. I emailed Mtroniks about this problem and this was their reply: From: Paul Kenningley <paul@mtroniks.net> To: Hi,The squeal you are hearing is due to the operation frequency of thecontroller. This sound will be apparent (on some motors more than others) atthe point just before the motor starts to revolve at speed. Ie. The momentthat the motor is just about turning.Regards,PaulMtroniks Ltd.The noise is apparent as stated and is horrendous and continues on some motors all the way to full throttle. I tested 10 different motors I had laying around)It was so bad in the boat that I took all the gear out and mounted it up on a board for maximum realistic separation of components. The Radio is a new Spectrum DX5i with AR600X receiver, 2000mah NiMH batteriesin parralel and 2000mah NiMH receiver battery. So it appears that this ESC is noisey on ALL motors and the noise continues well beyond "__just before the motor starts to revolve at speed". The web site describes this product "The Marine25 is the perfect speed controller for anybody wanting to either upgrade their old Speed Controller for a no nonsense 25Amp limit reversible electronic Speed Control or for anybody who uses scale model RC boats at scale speeds." http://www.mtroniks.net/details1.asp/ProductID/183/Viper-marine25.htmSo does "no nonsense" mean you give up something by choosing this esc? Apparently so. Many of us spend hundreds of dollars and hours on our everyday scale boats (and some of you spend waaaaaaay more than that, you know who you are ) and we don't expect scale operation to just mean speed. It's the whole experience and you will not get the desired effect with this product. It is I guess my bad for not doing more research before buying but the manufacturer should share some of the responsibility by mentioning this aspect of the control's operation on the website. If "no nonsense" means cheaper at a cost of features, have the guts to tell us what that means.
Posted on: 2/6/2012 6:37 PM by Author "mainiac68"
in the forum "User Product Reviews"
http://www.rcuniverse.com/forum/fb.asp?m=10947285
Squeal screech whine from my ESC
I bought a Mtroniks Mirror Marine 25 speed control a while ago for my 30" Midwest lobster bought refurbish. I finally got it installed in the boat and the forward and reverse are correct and proportional. The radio is a Spectrum DX5e with a AR600X receiver. The receiver is about 3 inches from the ESC. The motor is a Graupner Speed500 with appropriate capacitors installed (pos. to can, neg to can and pos. to neg). The problem is the horrendous squeal when I move the throttle off neutral in either direction. It's an electronic noise, not a mechanical one (like prop shaft) It continues up through the throttle range and starts to disipate when getting close to full throttle. Wow, it is loud! I have a green and red light on the esc when power is turned on. I am not using the BEC option, I'm using a Tenergy 6V 2000mah NiMH receiver battery and two ONYX 7.2V 2000mah NiMH drive batteries. I pulled the red wire from the esc connector and folded back and taped to secure and cover. Can you suggest what I might not have done correctly or is there a problem with the esc? I remember when this noise was an issue when trying to use a speed control designed for a fast electric in a scale boat but we must be beyond those issues these days. I have reworked this boat (she's over 20 years old!) and added features to make it unique and a pleasure to operate and observe. This type of noise is obviously unacceptable. Anyone have/had this problem? If not, what are you running for an ESC? Help!
Posted on: 2/5/2012 7:27 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=10945768
RE: scale boat radio needs
to blizard05 Thanks for the suggestion. I bought a DX5E Spectrum packaged with the 6 channel receiver from my local hobby shop and I'm going to use it on the lobster boat as well as others. I needed several batteries and some other stuff. I support the local guy when ever I can (when it won't cost me too much extra). Thanks for the suggestion.
Posted on: 1/19/2012 3:12 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=10917538
RE: scale boat radio needs
[quote]ORIGINAL: mfr02I An on board mixer allows two proportional motor controls plus the rudder to be controlled from 2 channels. The bow thruster could be either an ESC or a switcher for F - off - R on another channel. The bilge pump is best automatic, and not using a channel at all. The various light switching could live on one multi way switcher. Smoke generator is usually permanently on, a fan could work from the motor ESC. 7 & 9, might need a selector as part of the multi switcher above. Then its just a question of remembering which knob, stick or button does what. Thanks for the input. Do you have a site for an example of the on board mixer and multi switcher? The bow thruster will be on an esc for fwd/rev proportional operation. I used a bad example when I said "bilge pump" but it should have one on auto like my full scale boat, not a radio issue though. Did you ever notice that large full scale boats are always pumping water, even when not under way? That's the effect I'm looking for and would like to control it (on/off), like if it was a fire canon. I would like to be able to control the running lights and work lights/cabin lights so need info on a multi switcher for those various light funtions if you have a web site?. Yes the fan could operate on the esc for the throttle. I have more to learn on the smoke generator. Then more multi switcher tasks. I need to know more about those. I have started looking at radios in the 7 to 9 channel new and used but of course they are all flight oriented. As I look at and operate the controls I'm thinking scale boat functions and while it initially seems awkward it would eventually be OK I guess. The multi switcher amd on board mixer you refer to could ease channel requirements nicely. Thanks for the input! Fred
Posted on: 1/19/2012 2:54 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=10917507
RE: Midwest Boothbay~ How difficult to build?
The Midwest lobster boat is a real good kit. Read the manual before you get into the build and get familiar with the parts and schematic. If you follow the instructions you WILL like this boat. I built mine over 20 years ago! She is being refitted once again. I am usind a Mtronics Marine ESC and NiMH batteries. I am using an old Ace Nautical Commander 5 channel radio (with modifications) and a plain old Speed 500 motor from an old Graupner boat. Remember to seal the hull and all the rest under the deck before you deck the boat. I think I used one layer of 3/4 ounce fiberglass on the outer hull. Although not a large boat there is plenty of room for a number of operating features. After built you may want to put on a differant prop (although it will run just fine with the stock one) Post pics as you go. I'll post pics of mine later. Good Luck and Enjoy!
Posted on: 1/18/2012 6:43 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=10916094
scale boat radio needs
This is about scale boats but directed at radio needs. Not sure if this is the right forum but I wanted scale builders to read it. I'm just about done refitting my Midwest lobster boat and have started a 56" Tug and need radio gear. With accessories I need at least 4 channels for the lobster boat and 6 would be better. My old 4 channel Futaba crapped out. I have an old Ace Nautical commander AM 5channel (think I can expand it to 7) that I believe can be updated to 2.4ghz (think I saw that somewhere). That will do for the lobster boat. The tug will require at least 6 to 7 separate functions. What modern 2.4ghz radio would you use for this scale boat? Do the airplane radios work OK? Typical requirements for channels: proportional for throttle (1 or 2 separate not wy'ed), this tug will be single shaft proportional for bow thruster proportional for rudder switch for lights running switch for lights work, cabin switch for pump (ie for bilge) switch (hmmmm or proportional) for winch towing gizmo1 (thinking about a smoke generator with fan) gizmo2 anchor windlass or ??? Perhaps needs can be combined on a channel but more is better. The build is in the planking stage but never too early to solve problems that WILL show up. Lots of switching electronics are out there for a variety of needs but the basic configuration of the radio needs to be right to take advantage of the gear available. All input will be valued and appreciated. Will post pics as the build goes on. Several other projects going on at the same time (fast electric, refitting Bahamut AC sailboat). Thanks in advance. Fred
Posted on: 1/18/2012 6:27 PM by Author "mainiac68"
in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=10916066
RE: Stars and Stripes prodject
Good luck with your project. I had 2 of those victor boats and they may have been my alltime favorites (only realize this long after they are gone:-( I didn't use the stock supplied keel and bulb but made mine from scratch modeled after comparable units on the IOM or USOM boats, deeper to allow the boat to carry full sails in stronger wind). They sailed wonderfully! They tracked straight and true and pointed very high. Mine was painted like Stars and Stripes but with the later midnight blue color and trim rather than the light blue of 1987, a very good looking boat. My wife's boat was all red and set up exactly the same. I then built an AC Bahamut and eventually sold both Victor boats ( stupid, stupid!). If you have something good that worksKEEP IT-leason learned. The AC is very large and harder to handle now that I'm older. I am considering buildind a Victor Soling as that is a VERY popular boat here and is a one design which appeals to me a lot. But seeing your pics makes me want to build another S&S, very compact, easy to build and you can personalize to the nth degree; not for racing but for endless hours of enjoyment.
Posted on: 1/14/2012 10:05 AM by Author "mainiac68"
in the forum "RC Sailboats"
http://www.rcuniverse.com/forum/fb.asp?m=10908434
RE: AC boat
Thanks Allan. This class is indeed tough to find details for.This hull wouldn't compete well with the "new rule" boats but that's not what I'm doing. It's pure pleasure of watching the big boat cut through the water. Fred
Posted on: 4/4/2010 1:06 PM by Author "mainiac68"
in the forum "RC Sailboats"
http://www.rcuniverse.com/forum/fb.asp?m=9636479
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