What job did you do today in your shop?

[wachuko]

I'm just deviling you Jamie. I have no doubt you have your arms around this. Everything is looking great! Cant wait to see it done!

It's all good. I get your point. Not all contractors are dependable. I got lucky with the one that did the building and now the one doing the electrical. I sure hope it goes just as well with the the concrete guy...

I treat them well... I have breakfast for them, good/strong coffee, etc.

 

[finsruskw]

I would take a little more off, if it were mine.

Yeah, I'm thinking the same here.
I'm wondering just how much would be too much though??

 

[SouthernChap]

I treat them well... I have breakfast for them, good/strong coffee, etc.

Yep, that's the way.

I haven't offered breakfast but good coffee/tea and biscuits (what you guys call cookies; things like like chocolate digestives, chocolate hobnobs, double chocolate chip, Choco Leibniz etc.) are generally available 'on tap'.

 

[matthewsx]

Yep, that's the way.

I haven't offered breakfast but good coffee/tea and biscuits (what you guys call cookies; things like like chocolate digestives, chocolate hobnobs, double chocolate chip, Choco Leibniz etc.) are generally available 'on tap'.

The wife baked cookies often while our contractors were working on the addition we just finished. Inspections are mainly a factor of how good of relations the contractor has with the building department.

We started off with a guy that wasn't honest or sober. Once we fired him and got some good folks it went very quickly despite all the things they had to fix from the first guy....

John

 

[woodchucker]

Yeah, I'm thinking the same here.
I'm wondering just how much would be too much though??

Well from the stop on the spindle to the end of the spindle how much is that? How much is it from the front of the back plate to that measurement? Do you still have any of the unthreaded boss then cuz you do need the unthreaded boss

 

[WobblyHand]

Worked on the new back plate for my Bison 4 jaw.
Took about .1950" off the OD to match the OD of the chuck and about .158" from the overall thickness on the hub end.
Only had about 2 threads engaged on the spindle originally.
It engages about 1/2 of the threads, .40" now, before bottoming out on the spindle now.
There are 1.04" of threads
Wondering If I should take a bit more off the hub end so I engage 1/2 of the threads??
Overall thickness now is at 1.382"

Next up will be to cut the register to fit the chuck, and indicate the holes to be threaded which I am not really looking forward to at all

How many turns can you get? That's probably the somewhat important part. My ER40 set true back plate I made has about 10 turns or engagement at 8 TPI. If you have 5-6 turns you are probably ok.

 

[finsruskw]

Right now, with then plate mounted on the spindle up against the stop, as far as it will go, I have .4546" of unused threads on the spindle still exposed, about 3 threads.

And the plate is screwed on 3-1/3 turns approx.

There are about .740" of threads on the spindle so the plate is on less than 1/2 way, or only about .280"

If my math is correct then, in order to get it 1/2 way on, I'd have to take .080" more off the hub end taking the overall thickness down to 1.29" or so

 

[woodchucker]

How long is the unthreaded portion of the spindle.

 

[woodchucker]

So I am looking at 5 threads that I would want to engage. I think I am looking at 1/4 to 3/8 that might need to be shoulder.
Does that help.

 

[finsruskw]

Just a hair over 1/4" is unthreaded is all.
5 full turns is the most I can get screwing the plate on backwards and there is only .3230"
or so left unthreaded yet out of .5300" of remaining hub left.
So, .207" more and I will be into the threaded portion, reducing the total overall thickness a lot!
It's at 1.35" now.