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Search: Posts Made By: JS440
Showing results 1 to 25 of 131
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Forum: Speed - Electric
12-06-2023, 07:52 PM
Replies: 1
Views: 407
Posted By JS440

Source the drive and props, model the hull, the...

Source the drive and props, model the hull, the driveline would be the easy part.
Forum: RC Scale Boating
10-22-2023, 11:08 AM
Replies: 88
Views: 30,341
Posted By JS440

You'd have to glue the aluminum on, which I...

You'd have to glue the aluminum on, which I wouldn't personally trust. I've used both brass and stainless, depending on what material the shaft collar is made of, and solder to suit. Stainless is of...
Forum: RC Scale Boating
10-22-2023, 10:43 AM
Replies: 88
Views: 30,341
Posted By JS440

You can always make your own. A shaft collar like...

You can always make your own. A shaft collar like you'd get from Dubro/Sullivan etc, plus some thin metal, drill your holes, cut the arm out, and solder them on.
Forum: RC Boats General Discussion
10-20-2023, 11:36 AM
Replies: 70
Views: 7,336
Posted By JS440

ProModeler servos are great units. I've...

ProModeler servos are great units.

I've never had one get warm (but have never ran that specific servo), but unless it gets HOT, it's extremely unlikely that the heat will soften the epoxy enough...
Forum: RC Boats General Discussion
10-19-2023, 07:34 AM
Replies: 70
Views: 7,336
Posted By JS440

Hydro, it looks like he's already got a...

Hydro, it looks like he's already got a ProModeler servo installed, which should do just fine. They're great servos.
Forum: RC Scale Boating
10-18-2023, 04:14 PM
Replies: 88
Views: 30,341
Posted By JS440

I was a jet ski guy when I made my account many...

I was a jet ski guy when I made my account many years ago, haven't had one in years. Once we move into a bigger place, I'll have another pair though!
Forum: RC Boats General Discussion
10-18-2023, 03:47 PM
Replies: 70
Views: 7,336
Posted By JS440

I carry my same "more $$ =/= better" methodology...

I carry my same "more $$ =/= better" methodology into airplanes too... I'm an EdgeTX/Radiomaster guy.

You don't necessarily need a waterproof RX, but you should have the RX in a waterproof radio...
Forum: RC Boats General Discussion
10-18-2023, 01:26 PM
Replies: 70
Views: 7,336
Posted By JS440

RX/TX is all personal choice, and everyone will...

RX/TX is all personal choice, and everyone will have different opinions. I personally have been using FlySky in all of my surface vehicles for the last 10 years, and have never had a problem. Great...
Forum: RC Scale Boating
10-14-2023, 07:39 AM
Replies: 88
Views: 30,341
Posted By JS440

It looks like you could take a lot of slop out of...

It looks like you could take a lot of slop out of those linkages simply by using larger piano wire. Those wires are much too small for the holes in the arms.
Forum: RC Scale Boating
10-08-2023, 10:43 AM
Replies: 88
Views: 30,341
Posted By JS440

Gelcoat does crack fairly easily, however if you...

Gelcoat does crack fairly easily, however if you use ever need to do it, you can use a brad point bit which will greatly help reduce the risk. Unibits and step bits also work very well for drilling...
Forum: RC Boats General Discussion
10-02-2023, 04:44 PM
Replies: 70
Views: 7,336
Posted By JS440

The fit up on that cowl and wing could use a bit...

The fit up on that cowl and wing could use a bit of work! Looks like it will be a fun boat.
Forum: Speed - Electric
04-22-2023, 06:57 PM
Replies: 50
Views: 5,163
Posted By JS440

Lol, you must be quite the machinist! Ground,...

Lol, you must be quite the machinist! Ground, unhardened shafts don't exist? How about sleeve bearing surfaces? Such as nearly EVERY crank shaft or babbit bearing electric motor ever produced?

It...
Forum: Speed - Electric
04-22-2023, 06:47 PM
Replies: 50
Views: 5,163
Posted By JS440

You said it was ground, you never said it was...

You said it was ground, you never said it was hardened, we were supposed to guess? And if you took it out of a printer, I assume it's just a linear rail, in which case it's only case hardened...
Forum: Speed - Electric
04-22-2023, 03:59 PM
Replies: 50
Views: 5,163
Posted By JS440

As a machinist and engineer myself, it seems like...

As a machinist and engineer myself, it seems like it would be a lot easier to just turn down the pushrod/shaft and thread it for the ball end.

Or even just thread a piece of tubing (stainless,...
Forum: RC Boats General Discussion
02-26-2023, 03:46 PM
Replies: 12
Views: 2,364
Posted By JS440

The battery *could* have more punch, but it's...

The battery *could* have more punch, but it's more likely that it was at least partly in your head. If a battery can't supply what the motor is trying to pull, you'll likely cook the ESC

Brushed...
Forum: RC Boats General Discussion
02-26-2023, 09:04 AM
Replies: 12
Views: 2,364
Posted By JS440

A battery with a higher C rating shouldn't change...

A battery with a higher C rating shouldn't change the the temp of the engine, especially when it's already overkill. The engine draws as much amperage as it needs from the ESC, which takes said...
Forum: RC Airboats
02-01-2023, 04:00 PM
Replies: 8
Views: 2,261
Posted By JS440

If you actually plan to be bouncing off of hard...

If you actually plan to be bouncing off of hard things, a layer of fiberglass is definitely a good idea. Not necessary for a "regular" RC boat, but for things like airboats and jet boats that run in...
Forum: RC Airboats
01-29-2023, 07:25 AM
Replies: 8
Views: 2,261
Posted By JS440

I thought you meant you were going to use...

I thought you meant you were going to use fiberglass (with resin), and then coat with finishing resin. Apparently you meant you were going to use fiberglass WITH finishing resin to wet it out.

Use...
Forum: RC Airboats
01-28-2023, 07:28 PM
Replies: 8
Views: 2,261
Posted By JS440

Don't bother with finishing resin. You can glass...

Don't bother with finishing resin. You can glass it if you want, but finishing resin is a waste of time/money/weight. Go straight to primer.

You can make hatch locks mostly waterproof, but for a...
Forum: RC Scale Boating
09-27-2022, 05:35 PM
Replies: 2
Views: 1,299
Posted By JS440

That looks like a super easy hull to scratch...

That looks like a super easy hull to scratch build. I'd say either build it all out of wood, or 3D print the whole thing. I think the whole project will be easier if you stick with one construction...
Forum: RC Boats General Discussion
05-07-2022, 07:02 AM
Replies: 5
Views: 1,306
Posted By JS440

Killer build, would love to see it painted and...

Killer build, would love to see it painted and finished and running!
Forum: Speed - RC Nitro Boats
12-22-2021, 08:55 AM
Replies: 53
Views: 5,997
Posted By JS440

I'm usually a 120/220/320 kinda guy, sometimes...

I'm usually a 120/220/320 kinda guy, sometimes going up to 400, often skipping 120. I usually have a few others in the shop, but those are the 4 grits I ALWAYS have on hand.
Forum: Speed - RC Nitro Boats
12-21-2021, 12:47 PM
Replies: 53
Views: 5,997
Posted By JS440

For sealing and paint, I'd suggest sealing with...

For sealing and paint, I'd suggest sealing with epoxy fiberglass resin (thinned if you'd like to save a bit of weight). I've used epoxy paints before, and while it's possible to get a good finish, to...
Forum: Speed - RC Nitro Boats
12-20-2021, 02:12 PM
Replies: 53
Views: 5,997
Posted By JS440

https://www.mcmaster.com/tubing/plastic-and-rubber...

https://www.mcmaster.com/tubing/plastic-and-rubber-tubing-for-flow/high-temperature-soft-rubber-tubing-for-air-and-water/id~5-16/

That's a list of high temp hose with a 5/16" ID, note prices are...
Forum: Speed - RC Nitro Boats
12-20-2021, 01:33 PM
Replies: 53
Views: 5,997
Posted By JS440

Hydro, obviously you need air intake and exhaust,...

Hydro, obviously you need air intake and exhaust, but WHERE that air enters and exits is important. Whenever possible I like to have my cowl fairly well sealed against the hull, so that if it dies on...
Showing results 1 to 25 of 131
 
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