2016 POTD Thread Archive

[Brain Coral]

I was working on a cabinet over the last couple of days. Here's a few shots of the glue-ups...







Here, I'm forming tenons on the rails for the doors...



And here, I just finished gluing up the two doors....



It's a fairly simple cabinet made out of pine with 1/4" MDF panels, but all of the joints are full mortise and tenon for strength. It will be painted when finished.

Brian

 

[T Bredehoft]

Re: hardened 4140.
I'll keep the camera handy, but I'll be working in aluminum, so have high expectations.

Edit, correct happy to handy

 

[Sharky]

Tailstock "DRO"

DRO = dial read out.... right?

Sent from my SM-T217S using Tapatalk

 

[T Bredehoft]

looking forward to hearing the results, as well as seeing the tools cut

Either I didn't soak it long enough at temp, or the oil got too hot or the stars weren't aligned properly. I can still file it, but it is considerably harder than it was. I'm going to guess in the low 40s. I haven't set up to use it yet, but I'm pretty sure it will cut aluminum successfully.

 

[chevydyl]

That part needs prolly 20mins of soak, until it is no longer magnetic then quench

 

[chevydyl]

Aluminum is a somewhat abrasive material to cut, not quite as much as brass I think, but that's why you see pvd or diamond coatings for aluminum tools, because of the abrasive nature of those materials. You may find that you have to sharpen the edges sometime

 

[mattthemuppet2]

added Gits oilers to my Atlas 618 carriage and finished a snow shoe (3 more to go!)

 

[Franko]

I am happy that I do not live in a place where snow shoes are necessary — except in the middle of Summer.

 

[Firestopper]

Got the Tachometer bracket made. A simple design that is low profile and did not require any drilling/tapping to the headstock. The tach works amazingly well with a crazy wide RPM range. I will compare the the tach with a laser tach and see how close we are. Machining the spider without a tach was not a big deal, but knowing the rems will make it handy for cheat sheets once the sweet spots are found. Really liking Mark's system design a lot.
The bracket was made from .125"x1" flat strap and is very rigid. It shares the same stud that secures the end cover at the top.

 

[British Steel]

Aluminum is a somewhat abrasive material to cut, not quite as much as brass I think, but that's why you see pvd or diamond coatings for aluminum tools, because of the abrasive nature of those materials. You may find that you have to sharpen the edges sometime

I think the coatings are more to stop the aluminium welding to the tool - it often forms a built-up edge which spoils the angles you've ground. Alternatives are to really POLISH the top surface of the cutter or to use a good cutting lubricant - I use a neat cutting oil, but even WD40 will do (in fact, it's about all it's good for!)

Dave H. (the other one)