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Author Topic: Fly Cutters  (Read 53517 times)

Offline DaveH

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Re: Fly Cutters
« Reply #25 on: December 28, 2012, 11:04:47 AM »
I have no idea what we are talking about, nevertheless that has never stopped me joining in  :)
Firstly Norman, at your age you should be grateful you can lose the odd tooth  :lol:
Secondly Huh, I forgot what I was going to say :Doh:
 :beer:
DaveH

 
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Offline DaveH

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Re: Fly Cutters
« Reply #26 on: December 28, 2012, 02:56:07 PM »
Ah, I remember,
Rob - Just wondering what shape insert you are thinking of using, triangular, round ?
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DaveH
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Rob.Wilson

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Re: Fly Cutters
« Reply #27 on: December 28, 2012, 03:19:05 PM »
Triangular Dave ,,,,,,,,,,,, why ?   :)


Rob
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Offline DaveH

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Re: Fly Cutters
« Reply #28 on: December 28, 2012, 04:41:25 PM »
Hi Rob,
No real reason, just that I have seen the round insert used a few times.
 :beer:
DaveH
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Rob.Wilson

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Re: Fly Cutters
« Reply #29 on: December 28, 2012, 04:50:31 PM »
If my memory is correct Dave , did you make a fly cutter with round insert  :scratch:


Rob
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Rob.Wilson

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Re: Fly Cutters
« Reply #30 on: December 28, 2012, 04:55:11 PM »
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Offline DaveH

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Re: Fly Cutters
« Reply #31 on: December 28, 2012, 07:05:38 PM »
Rob,

Yes I did, I had some round inserts so I thought I would give it ago. Years ago our fly cutters were 1/2" to 1" HSS and especially for steel and aluminium always ground a biggish radius on the cutting edge. Not that we were different most were done that way. As the carbide insert revolution took over industry all sorts of "odd" shaped cutters appeared each company marketing their own shape.

One real nice feature about being round if it gets a little blunt - just turn it around 30 to 45 deg.  :thumbup:  :clap: So 8 cutting edges  :D
 :beer:
DaveH
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Rob.Wilson

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Re: Fly Cutters
« Reply #32 on: December 29, 2012, 04:21:58 PM »
Finally made a start today .  :dremel:


Chucked a lump of 90mm bar and ruffed the OD and screw cut .



The collet chuck as is needs a bit beefing up and I did not want the fly cutter  body to just be held by the screw , So turned up a plug from silver steel  that will be a press fit into the collet chuck and also give me a register for the cutter body to fit to .
 

This was hardened in the shop pie oven .

The black chips are bits of charcoal , these use up some of the oxygen  in the furnace , which helps reduces  scaling on the part .

straight from the quench , glass hard in this condition it is only good for a sand blasting nozzle.


Back in the oven for tempering .

Tempered


I will press the two together tomorrow after i have machined the registered in the fly cutter body .



Rob 

   
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Offline DaveH

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Re: Fly Cutters
« Reply #33 on: December 29, 2012, 05:16:38 PM »
Rob,
Well like they say - so far so good :thumbup: :clap:
 :beer:
DaveH
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Offline saw

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Re: Fly Cutters
« Reply #34 on: December 29, 2012, 06:16:33 PM »
Nice work Rob. :clap: :clap:
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Offline micktoon

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Re: Fly Cutters
« Reply #35 on: December 29, 2012, 06:20:33 PM »
Looking good so far Rob   :thumbup:..... I did not know you could cook too  :lol:, I must remember to bring some cold pies next time I call lol.
  Cheers Mick.
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Offline rotorhead

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Re: Fly Cutters
« Reply #36 on: December 30, 2012, 04:47:03 AM »

Looks like you've got it under control Rob...

Chris
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Offline John Rudd

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Re: Fly Cutters
« Reply #37 on: December 30, 2012, 05:03:49 AM »
Rob,

Great job as ever.... :bow:

You need to stock up on pies for the next time I call............ :)
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Rob.Wilson

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Re: Fly Cutters
« Reply #38 on: December 30, 2012, 12:46:03 PM »
Thanks lads  :beer:

Quote from: John Rudd on December 30, 2012, 05:03:49 AM
Rob,



You need to stock up on pies for the next time I call............ :)

 :lol: :lol: :lol: :lol: I will get a wagon load from Greggs ,,,,,,,,,,,,, I have there pie app on my phone  :palm:



Well a bit more done , Plug pressed into arbour .And the registered turned .


May as well show this lot , someone may fined it useful , I need to flip the work around to finish the turning . I have no softjaws for the CUB lathe
so this is the method I use .

Turn up a bit scrap bar , dose not matter what , I had a bit ally to hand , bore it say 10 thou under size and stick a large chamfer on one side of the bore ,this is so when you machine it to dead size there is no fear of hitting the chuck jaws . remove from the chuck and saw a slot in it.



No mount it back in the chuck , I line the slot up with the badge on the chuck , that way I always no were to refit it .


Now find a bit shim , anything will do as long as it an easy /slack fit in the slot ,this is so that when the chuck jaws are slightly released the shim can easily be removed and the ring stays put . shim in photo just for demo.


Now tighten chuck and bore dead to size , slacken chuck , slide out shim and mount job.

Now the work is held concentric with prior machined surface , also no chance of getting jaw marks .





Rob 
   

« Last Edit: December 30, 2012, 02:23:45 PM by RobWilson »
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Offline raynerd

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Re: Fly Cutters
« Reply #39 on: December 30, 2012, 05:32:34 PM »
 :drool:

I`d pay good money to just stand and watch you for an hour  :bow:
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Offline raynerd

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Re: Fly Cutters
« Reply #40 on: December 30, 2012, 05:32:55 PM »
....preferably in your workshop that is.
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Offline Swarfing

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Re: Fly Cutters
« Reply #41 on: December 30, 2012, 05:40:24 PM »
Dirty boy  :ddb:
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Rob.Wilson

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Re: Fly Cutters
« Reply #42 on: December 31, 2012, 02:32:34 PM »
 :lol: :lol: :lol: :lol: scary Chris  :lol: :lol: :lol: :lol:

Well grabbed a couple of hours in the shop tonight , Mounted the lathe chuck on the mill and milled the slot for the cutter bar.


Next whipped the vertical head of and using the HZ head drilled the three grub  screw holes .


Whacked it back on the lathe and machined are recess for a bolt to lock the cutter body onto the arbour.




Thats all the work done to the body .





ALL THE BEST FOR THE NEW YEAR LADS :mmr:


Rob


 
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Offline micktoon

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Re: Fly Cutters
« Reply #43 on: December 31, 2012, 03:00:01 PM »
  Top Notch work as usual Rob :clap: :bow: :bow:, is that bead blasted finish you have or some sort of acid dip, its hard to tell from photo but looks good whatever it is :drool: :drool:, good to see you at work in the shop again :dremel:.

   All the best for 2013 .......... may your to do list get much shorter  :lol:


 Cheers Mick  :beer:
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Offline doubleboost

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Re: Fly Cutters
« Reply #44 on: December 31, 2012, 03:21:30 PM »
Looks very nice Rob :drool: :drool:
I often have to dull down the surface finish
To stop it from reflecting light in to my eyes  :jaw: :jaw: :jaw: :jaw:

John
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Offline krv3000

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Re: Fly Cutters
« Reply #45 on: December 31, 2012, 03:23:00 PM »
well dun rob
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Offline Mayhem

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Re: Fly Cutters
« Reply #46 on: January 02, 2013, 04:46:31 AM »
Awesome work as usual Rob.  Any chance that you would share the plans?  Think of it as your Chrissy gift to us  :thumbup:

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Rob.Wilson

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Re: Fly Cutters
« Reply #47 on: January 02, 2013, 02:47:33 PM »
Cheers Lads  :beer:

 :lol: :lol: :lol: :lol: AYE it needed de-blingin  John .

Hi Mick ,I gave the body a satin Nickel finish ,anti corrosion coating  :med: just something I am messing around with and nope I ain't telling you how  :coffee: .


Cheers Mayhem ,,,, I may do some drawings  :thumbup:


No real machining done , just made a couple of pretty pictures of what I hope the cutter bar will look like .




Rob




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Offline micktoon

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Re: Fly Cutters
« Reply #48 on: January 02, 2013, 03:03:21 PM »
Them there pretty pictures look almost real Rob  :clap: I look forward to seeing the cutter bar getting machined  :dremel: I am sure it will look  :drool:

  Cheers Mick.
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Offline John Rudd

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Re: Fly Cutters
« Reply #49 on: January 02, 2013, 03:31:13 PM »
Quote from: micktoon on January 02, 2013, 03:03:21 PM
I look forward to seeing the cutter bar getting machined  :dremel:   Cheers Mick.

I'm looking forward to seeing this fly cutter in action.... :dremel:

Really looks the bizz....Rob  :bow:
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