butterfingers. repair?

[RickTheUncivil]

Sort of dropped a new motor I was fitting to my mixer and it cracked the casing clean off the end. Its the bit that attaches to motor to the frame (see the threaded holes on top?) so its got the weight of the motor to support and so I figured it should be pretty sturdy and blutac /cable ties / duct tape ain't going to do it. Question is, is it repairable? How, what would work? Not even sure what the material is if I'm honest which isn't helping. Really don't want to be forking out for another new motor!

Any ideas?

 

[hamster]

Looks like diecast aluminium. I would try using epoxy resin (araldite) to secure. After all, the Lotus Elise is built like that, and it certainly works in marine applications too!

 

[RickTheUncivil]

Re:

Got some of that (I think) but wasn't sure if it was the way to go. Think it will hold up?

 

[rwm1962]

Can you not swap the bits off the old motor?

 

[RickTheUncivil]

Re:

That was my idea too but the bolts are rusted solid. Been plus gassing for a couple of days now and no joy. And I will need to get the screws out with the threads intact if I'm going to reuse the part so chopping and smashing are not options (yet).

I have just taken the new broken part off and I think we are looking at cast alu, certainly light enough.

I'm off to Google cast aluminium araldite and see what the all knowing web tells me

 

[RickTheUncivil]

Araldite for the win

Still no joy unrusting the old one, but I will not be defeated. Probably.

 

[captaincowelly]

Liquid metal is good stuff.Perhaps a squirt of that,clamp it up to set and if you want to give it a bit more chance of working,a nice wrap of epoxy putty works wonders.They do an aluminium based one.Quik steel's a good,inexpensive one.
Epoxy bandages are great too,mix water with it in the bag,wrap as many layers as will fit,Probably the best option thinking about it.

 

[captaincowelly]

Now wondering if it's not just gonna fling itself apart as soon as it starts mixing and feels resistance.Think I'd be tempted to drill n tap the sides and bolt small plates on.

 

[RickTheUncivil]

Classic araldite has worked so far. Dropped the drum a couple of times (long story) and it's not fallen off yet so the repair looks to be doing the job so far.

BUT I have not managed to do much actual mixing as there appears to be something causing resistance in the system, it spins happily for about 30 seconds then grinds to a halt. Its an old mixer but turning by hand all the bits seem to work. the motor is new and spins great, belt is well tensioned, bearings both spin well by hand. But for some reason I have not yet determined it's just not working properly when it's all stuck together. Job for another day.

 

[captaincowelly]

Classic araldite has worked so far. Dropped the drum a couple of times (long story) and it's not fallen off yet so the repair looks to be doing the job so far.

BUT I have not managed to do much actual mixing as there appears to be something causing resistance in the system, it spins happily for about 30 seconds then grinds to a halt. Its an old mixer but turning by hand all the bits seem to work. the motor is new and spins great, belt is well tensioned, bearings both spin well by hand. But for some reason I have not yet determined it's just not working properly when it's all stuck together. Job for another day.

Nicely done with the Araldite then! Could be the shaft is now slightly misaligned,casing out of shape slighly?A mm or so could make all the difference.Maybe see if the bearings are getting hot?