How-To: Make Your Own Rotary Backing Plate Extension!

[FUNX650]

Matt,

This thread is absolutely spectacular!!

I enjoy the step by step illustrations and instructions and will get started on my own thanks to you!!

Nice DIYer, along with a $$ saver!

I'm thinking about making one, or more, for myself...

But since this adapter will be exposed to a "wet environment" with a lot of 'chemical use'; along with, "heavy-duty" usage at times....I'm going to use: "Grade 8" Stainless bolts/(or studs)/hex couplings....may be just a little more costly upfront, but they should last a lifetime (at least the rest of mine).



Bob

[kronos]

Sweet!!! I definitely need to make me one of these. Thanks for the tip.

[Dr Oldz]

I would be afraid that it will blow apart at 1800 RPM's. But that is just me.

[Flannigan]

I would be afraid that it will blow apart at 1800 RPM's. But that is just me.

[IOMCAMARO]

[opie_7afe]

that's why you drill it out and use a roll pin in there, wont come apart with a roll pin in there...but hey each their own, remember though with the direction the rotary spins it really cant come apart as the rotation would if anything make everything tighter... i don't see the shaft breaking either especially if you use the right supplies...

[BobbyG]

But since this adapter will be exposed to a "wet environment" with a lot of 'chemical use'; along with, "heavy-duty" usage at times....I'm going to use: "Grade 8" Stainless bolts/(or studs)/hex couplings....may be just a little more costly upfront, but they should last a lifetime (at least the rest of mine).



Bob

Bob,

I'm going the stainless route as well. Fine minds think alike!

[Dr Oldz]

that's why you drill it out and use a roll pin in there, wont come apart with a roll pin in there...but hey each their own, remember though with the direction the rotary spins it really cant come apart as the rotation would if anything make everything tighter... i don't see the shaft breaking either especially if you use the right supplies...

Not worried about it coming apart. The centrifugal force on the hex nut would concern me. Not knocking your idea here at all but just expressing a personal concern.

[opie_7afe]

i wish i could have gotten stainless, my lowes sucks for the small parts hardware section, most stuff is mixed up or not what it says it is ect otherwise i would have went stainless as well lol it was my original plan. wish i had a ace hardware in this town.i hightly doubt this thing would blow apart look at the adapter that is not made by optimum its the same basic design as mine. i know the optimum one is machined from what looks to be aluminum. but if you dont feel its safe thats on you, i feel its perfectly safe. there is no way this thing could "blow up", metal has a high tensile strength and there should be now way it blows up or comes apart as like i said with the rotation the rotary has it would tighten it not loosen it, i wish people would stop doubting my ideas, just because something is not purchased does not mean its not as good as the purchased item, if not small machine shops would not be in business. however for the ones who are doubting this i will take a video when i get my adapter back (had my father inlaw bring it to work to use a drill press to drill the hole) and i will crank my rotary up to maximum speed which is 3700 rpm before i use it which was my plan anyways just to be 100% sure the roll pin wont shoot out and mess stuff up.

[Flash Gordon]

I would be afraid that it will blow apart at 1800 RPM's. But that is just me.

I would be afraid that chinese bolt would break

I had a freind make me one on a lathe. Solid stainless