Edwards 5 Radial Engine
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- Posts: 10
- Joined: Wed Dec 06, 2006 2:41 am
- Location: Dublin, Ireland
Hello Ivy
Excellent work as usual. I haven't got too much done lately, I've been working late a lot but I have made 2 cylinder heads ( and destroyed 2 others !!! ). You can see them here. http://s139.photobucket.com/albums/q296 ... adial%205/
Did you case harden the crankshaft before grinding ? I have a T&C grinder myself, you can see it at the link, but no powered workhead so I'd have to make some kind of grinding spindle like yours to do it. Machining the crankcase with a rotary table on a vertical mill is pretty straightforward especially if the rotary table is the H/V type. The round bar needs to be a little over 4" to start with. I used a fly cutter to cut the flats. The hardest part for me was boring out the centre of the crankcase on the lathe, I was getting terrible chatter and ringing even with the biggest boring bar I had. Taping heavy solder on the outside helped a bit but I think my lathe is a bit small and worn.
Regards / Paddy.
Excellent work as usual. I haven't got too much done lately, I've been working late a lot but I have made 2 cylinder heads ( and destroyed 2 others !!! ). You can see them here. http://s139.photobucket.com/albums/q296 ... adial%205/
Did you case harden the crankshaft before grinding ? I have a T&C grinder myself, you can see it at the link, but no powered workhead so I'd have to make some kind of grinding spindle like yours to do it. Machining the crankcase with a rotary table on a vertical mill is pretty straightforward especially if the rotary table is the H/V type. The round bar needs to be a little over 4" to start with. I used a fly cutter to cut the flats. The hardest part for me was boring out the centre of the crankcase on the lathe, I was getting terrible chatter and ringing even with the biggest boring bar I had. Taping heavy solder on the outside helped a bit but I think my lathe is a bit small and worn.
Regards / Paddy.
Paddy O'S.
Hi Paddy
Thats a nice looking shop you have.
No I did not case harden the crank, I hope I dont regret it later.
Your's is looking good also, dont feel bad about scrapping parts, I scraped a set of cylinders because I used some mystery alum. it was gumy and could not cut fins building up on tool and deforming fins.
Did you notice my I didn't cut .500 slot across cam housing for oil pump, I milled a pocket for it to set in.
I didn't like the looks of that slot .
Keep up the good work and keep us posted.
Ivy
Thats a nice looking shop you have.
No I did not case harden the crank, I hope I dont regret it later.
Your's is looking good also, dont feel bad about scrapping parts, I scraped a set of cylinders because I used some mystery alum. it was gumy and could not cut fins building up on tool and deforming fins.
Did you notice my I didn't cut .500 slot across cam housing for oil pump, I milled a pocket for it to set in.
I didn't like the looks of that slot .
Keep up the good work and keep us posted.
Ivy
Ret. Machinist/Toolmaker
I did not fail, I just found 10,000 ways that wont work.
I did not fail, I just found 10,000 ways that wont work.
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- Posts: 23
- Joined: Thu Jun 16, 2005 3:21 pm
- Location: Eaton Rapids MI
Hi gang, it's been awhile since I have been on. Summer outdoors stuff..you know.
Anyway Ivy or Paddy have either of you machined the cam yet? I didn't get around to starting my engine and thought maybe I would start with this first.
Have fun gang...
Bob
Anyway Ivy or Paddy have either of you machined the cam yet? I didn't get around to starting my engine and thought maybe I would start with this first.
Have fun gang...
Bob
Bob
Links To pics of shop and projects
http://s2.photobucket.com/albums/y39/Deere_X475guy/Machine%20Shop/
Links To pics of shop and projects
http://s2.photobucket.com/albums/y39/Deere_X475guy/Machine%20Shop/
Hi Bob
My Radial has been on hold for the last 3 Months, I have been tooling up and building 4 belt drive reduction units. I hope I can get back to it soon.
I will start on the Cam or the rings next.
Here's a photo of reduction units, they are for large scale R/C model aircraft.
http://img.photobucket.com/albums/v67/i ... G62/x3.jpg
Ivy McNeil
My Radial has been on hold for the last 3 Months, I have been tooling up and building 4 belt drive reduction units. I hope I can get back to it soon.
I will start on the Cam or the rings next.
Here's a photo of reduction units, they are for large scale R/C model aircraft.
http://img.photobucket.com/albums/v67/i ... G62/x3.jpg
Ivy McNeil
Ret. Machinist/Toolmaker
I did not fail, I just found 10,000 ways that wont work.
I did not fail, I just found 10,000 ways that wont work.
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- Posts: 23
- Joined: Thu Jun 16, 2005 3:21 pm
- Location: Eaton Rapids MI
Hey Ivy great job on those I did read the thread. I think you should be able to make yourself a little side money making those.
I have the metal for the cam chucked in the lathed and faced off now. This is the part that spooked me the most so I am going to start with it. If it was meant to be it was...if not then it wasn't...but I am going to give her a heck of a try.
I have the metal for the cam chucked in the lathed and faced off now. This is the part that spooked me the most so I am going to start with it. If it was meant to be it was...if not then it wasn't...but I am going to give her a heck of a try.
Bob
Links To pics of shop and projects
http://s2.photobucket.com/albums/y39/Deere_X475guy/Machine%20Shop/
Links To pics of shop and projects
http://s2.photobucket.com/albums/y39/Deere_X475guy/Machine%20Shop/
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- Posts: 10
- Joined: Wed Dec 06, 2006 2:41 am
- Location: Dublin, Ireland
Hello all,
I finally got around to doing some more parts. I've made the master rod and fitted the valve guides to the cylinder heads. No prize for spotting the cylinder head with the 2-56 tap broken in it ! I tried making 2 valves but made scrap of them while cutting the grooves for the collets. I've also made a clutched tailstock die holder from a Hemingway kit I bought while at the Midlands Model Engineering exhibition in the UK. You can see them here http://s139.photobucket.com/albums/q296 ... adial%205/
Ivy, I think your engine must be running by now ?
Paddy.
I finally got around to doing some more parts. I've made the master rod and fitted the valve guides to the cylinder heads. No prize for spotting the cylinder head with the 2-56 tap broken in it ! I tried making 2 valves but made scrap of them while cutting the grooves for the collets. I've also made a clutched tailstock die holder from a Hemingway kit I bought while at the Midlands Model Engineering exhibition in the UK. You can see them here http://s139.photobucket.com/albums/q296 ... adial%205/
Ivy, I think your engine must be running by now ?
Paddy.
Paddy O'S.