Hms holland 1 build

[rwtdiver]

Looks great Rob!

Nate

Thanks Nate!

It's been somewhat of a struggle and as soon as the silicone cure (tomorrow) I will do a leak test on the end cap and then I can move onto the rest of the control wiring!

[neitosub]

Looks great Rob!

Nate

[rwtdiver]

Some progress today!



I installed the power wires to my ESC, 3D printed some caps which I then fill with silicone to form a positive seal on all the penetrations through the end cap! After the silicone cures (24 hours) I will add a coat of waterproof seal to the entire inside of the end cap and this will complete this portion of the WTC.

Rob
"Firemen can stand the heat"

[rwtdiver]

More items done today!




I soldered brass washers to the wire ends of the brushless motors. I them bored three holes in the end cap to install 3 4-40 brass screws that I attached the motor wires to.

PLEASE NOTE: This is a procedure that I learned from David Merriman, and it works great! :-))

The 3 wires from the ESC will now connect to the three brass screws that protrude through and into the inside of the end cap, this makes a very positive link up between the ESC and the brushless motor!

Rob
"Firemen can stand the heat"

[rwtdiver]

Today's Progress!



I am getting ready to install the new brushless motor. Also fabricated a special tab to be used to secure the top half of the hull to the bottom.

NOTE: To those of you still in the work force "Happy Labor Day"

Rob
"Firemen can stand the heat"

[rwtdiver]

What happened to the waterproof brushed motor?

Hi Romel,

The brushless motors worked ok, and they did run well in the water, the main problem was they turned at almost 12,000 RPM at 7.2 volts and really had no torque to them. Oh well live and learn! And it seems like I just have to learn it the hard way (my father always told me that!) :-))

I think this new set up is going to work out well!

Rob
"Firemen can stand the heat"

[rwtdiver]

Ditto what Bob said Rob.

Thank you, Bob and Steve!

Yes, I am looking forward to completing this boat and seeing it in the water. It's been somewhat of a struggle, but I will get eventually! :-))
Rob
"Firemen can stand the heat"

[redboat219]

What happened to the waterproof brushed motor?

[SubDude]

Ditto what Bob said Rob.

[RCSubGuy]

Really glad to see you persevering on this, Rob. It's a great looking build so far.

[rwtdiver]

The new brushless motor just arrived for the HMS Holland!



I will be using this same motor and set up on my SM UC 5 U-BOAT build as well!

Rob
"Firemen can stand the heat"

[rwtdiver]

Today I finished up the two new stern hull sections to replace the original that would not work out with the original motor.



The new 750KW brushless motor will arrive today and I will get it mounted on the end cap and line up with the new stern sections!

Rob
"Firemen can stand the heat"

[rwtdiver]

Back at the Holland again!



I am reprinting the stern section of the Holland, and I have purchased a 750KV Brushless motor and a 40 amp bidirectional ESC for the rebuild. The original motors that I was going to use just did not work out! (They were junk)

I am not going to give up on this build!! :-))

Rob
"Firemen can stand the heat"

[rwtdiver]

Well after working on the motor and drive train until 3:00 AM in the morning, my drive shaft design failed as well as the CHEAP motor!



So! As of now this build on hold until I can redesign the stern section and come up with a better motor selection, most likely brushless motor! I am going to back off the Holland build for a while!

Rob
"Firemen can stand the heat"

[rwtdiver]

Thanks for the photos Romel!

I do see where the surface control rods seem to be more outside the prop guard as per say! I am installing the motor and the prop this AM and will have a better idea as to the control rod locations! Thanks again for the advice and photos!

Rob
"Firemen can stand the heat"