Aligning the Motor

[pfish]

Thanks Guy's.

[detox]

By coincidence I am gluing in a motor and shaft right now. The photo shows the 3/16" solid shaft in the coupler; the largest 9/32" OD brass tube will be glued into the hull. The 1/4" OD brass tubing is next with a 7/32" OD tube which is a slip fit for the 3/16" drive shaft. No slop, perfect alignment. I find that using flex cable can cause misalignment as the cable will bend slightly while gluding which leaves the alignment off.

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Fluid, I do my hydros the exact same way as you. Monos are a different story. Especially the one Brian did in my Delta Force 33. This will take me a little while to figure out. The carbon fiber flood tube is epoxied sealed flush with tube end.

I would show the strut angle, trim tab and turn fin placement, but that is top secret. I wish he included the most important part...the prop and motor.

[m4a1usr]

The best "tool" I've seen to align the motor shaft and stuffing tube was posted by one of the members a while back. It was a coupler attached to the motor shaft with a length of drill it in the coupler to figure out where the stuffing tube should go. i think it was D.smock that posted it, if you want to search for it.

Yep. Pretty much the best way IMO. I have several "adapter rods" made that range in size to do that same job. Just need to take some round stock and turn it on a lathe to work what ever stuffing tube size you plan on using. 3/16 and 1/4" alum rod turned to the right diameter. Makes for a perfect alignment.

John

[Fluid]

By coincidence I am gluing in a motor and shaft right now. The photo shows the 3/16" solid shaft in the coupler; the largest 9/32" OD brass tube will be glued into the hull. The 1/4" OD brass tubing is next with a 7/32" OD tube which is a slip fit for the 3/16" drive shaft. No slop, perfect alignment. I find that using flex cable can cause misalignment as the cable will bend slightly while gluding which leaves the alignment off.

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[detox]

If you are building a hull and need to mount stuffing tube I used a long 3/16" drill bit attached to .187" collet and motor shaft.

If your stuffing tube is allready installed you can use just the flex cable and teflon liner to line up motor shaft. Pretty simple

[Steven Vaccaro]

The best "tool" I've seen to align the motor shaft and stuffing tube was posted by one of the members a while back. It was a coupler attached to the motor shaft with a length of drill it in the coupler to figure out where the stuffing tube should go. i think it was D.smock that posted it, if you want to search for it.

[siberianhusky]

Don't quite understand your question, but I use nothing but the flex shaft, adjust the motor mount until the flex goes into the stuffing tube without touching.
Use pretty much the same method when I'm installing a stuffing tube and motor mount. Tack it in with CA then glass and epoxy.
A drill, ruler, sharpie and a machinists square and vernier calipers, maybe some files are about the only tools I really use to build a 'glass hull boat.

[pfish]

What tools do you guys use to line up the motor with the shaft?
Thanks