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Heat treat furnace - Printable Version

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RE: Heat treat furnace - Highpower - 12-18-2015

(12-17-2015, 08:03 PM)f350ca Wrote: If your worried about strength cut the keyway in the ratchet 1/2 and step down to 10 mm with the key

Well that would work if I had a 1/2" keyway broach..... but naturally, I don't. Rotfl

I don't think I would ever see anything come through my home shop that required a key that big. I do have a 1/2" broach, but it's a square broach. Because it cuts on all 4 sides it needs a round hole to start in. I really should pick up a few metric broaches though. Plenty of imports around here - tools, machines, cars.... Big Grin

But for now at least I think I will go with the 10mm - 3/8" stepped key idea. If I end up shearing off a key I can always re-cut the keyway in the ratchet later. Or just weld the ratchet to the pinion... depending on what kind of mood I am in after shearing off a key and busting my knuckles. Rotfl Rotfl Rotfl


RE: Heat treat furnace - RobWilson - 12-20-2015

(12-16-2015, 09:24 PM)Highpower Wrote:
(12-16-2015, 01:49 PM)RobWilson. Wrote: ...... few being more than 2  but less than 4   Big Grin

Too funny Rob. That is exactly the way it works, as my wife tells me. We used to do battle over those terms sometimes. But she informed me that a "couple" means 2, and a "few" means 3! Been that way ever since....   Rotfl

Ha ha ha ha Willie it sounds like your good lady knows a thing or few  Big Grin


Any way I think you have gone way overboard   with your controler , total over kill !  

Quote: But being a typical lazy American I would want a controller that reads out in Fahrenheit so I know immediately what I'm looking at. Conversion chart? 


 And the method I am about to describe is in Fahrenheit  Big Grin , here goes , I was playing trivial pursuit last night the new edition and I got this question and thought of Willie straight away  Blush  ,not sure I should have typed that !


Question ,
What can you tell about the weather by counting cricket chirps ?   Chin  


Answer ,

Temperature  -  The old farmer's Almanac suggests counting the chirps in 14 seconds ,then adding 40 to get the temperature in Fahrenheit  Thumbsup



Whats do you think ?  ,no need for a thermocouple or black box   Big Grin 


Rob


RE: Heat treat furnace - wawoodman - 12-20-2015

If it's a Canadian cricket, would it chirp in Celcius?


RE: Heat treat furnace - RobWilson - 12-20-2015

(12-20-2015, 11:23 AM)wawoodman Wrote: If it's a Canadian cricket, would it chirp in Celcius?

Nope you would need a phone app  to do the conversion Big Grin


Rob


RE: Heat treat furnace - Highpower - 12-20-2015

(12-20-2015, 05:16 AM)RobWilson. Wrote: Any way I think you have gone way overboard   with your controler , total over kill !  

Maybe so, but to paraphrase Ed... I would rather shoot for overkill than underkill.   Big Grin

Quote:Whats do you think ?  ,no need for a thermocouple or black box   Big Grin 

Rob

I think I would go back to using crayons before trusting any "city" crickets. They don't know anything about being a meteorologist!

(12-20-2015, 11:37 AM)RobWilson. Wrote:
(12-20-2015, 11:23 AM)wawoodman Wrote: If it's a Canadian cricket, would it chirp in Celcius?

Nope you would need a phone app  to do the conversion  Big Grin

Rob

[Image: anim_lol.gif] [Image: anim_lol.gif] [Image: anim_lol.gif]


RE: Heat treat furnace - Highpower - 12-20-2015

(12-20-2015, 05:16 AM)RobWilson. Wrote: ....I got this question and thought of Willie straight away  Blush  ,not sure I should have typed that !

Rob

I had to laugh at that for a "couple" of reasons, but mostly because I just went through that yesterday myself. I saw this posted on another forum and immediately thought of a guy I used to work with turning wrenches, that happens to have 2 dachshunds at home. I just had to email this photo to him and suggest he re-name his animals "Imperial" and "Metric".   Rotfl

[attachment=12438]


RE: Heat treat furnace - EdK - 12-20-2015

(12-20-2015, 02:08 PM)Highpower Wrote: ... I saw this posted on another forum and immediately thought of a guy I used to work with turning wrenches, that happens to have 2 dachshunds at home. I just had to email this photo to him and suggest he re-name his animals "Imperial" and "Metric".   Rotfl

[Image: attachment.php?thumbnail=12438]

Good one!  Rotfl


RE: Heat treat furnace - DaveH - 12-21-2015

Rotfl Rotfl   Rotfl
Smiley-eatdrink004
DaveH


RE: Heat treat furnace - Highpower - 12-21-2015

He replied to me last night..... "WHAT THE ****!!!!???? This is like the 5th time somebody has sent me that same picture in the last week!"

Big Grin Big Grin Big Grin


RE: Heat treat furnace - Highpower - 12-23-2015

(12-17-2015, 01:42 PM)f350ca Wrote: How about a stepped key Willie. 10mm to fit the shaft and 3/8 to fit your keyway.

Is it better to trim a little from both sides of the key, or take it all off from one side? 17428

No engineering schooling on my resume. Happyno
I'm just guessing one 90° corner (stress riser) is better than having 2? Smiley-think005