Author Topic: Brian's 5 cylinder radial  (Read 3698 times)

brian

Re: Brian's 5 cylinder radial
« Reply #60 on: April 20, 2020, 04:46:57 AM »
 I am warming to the idea of a spinner like that used on the Beech Stagger wing.
 Thanks for the input sometimes I get bogged down . and it needs fresh input  to stir up the grey matter. :bravo_2:
Now have a chunky 12V motor somewhere??

brian

Re: Brian's 5 cylinder radial
« Reply #61 on: April 20, 2020, 05:22:47 AM »

      900 RPM  and Loads of torque    I think that may do the trick.
 It's a long time since i used  That tool.

f350ca

Re: Brian's 5 cylinder radial
« Reply #62 on: April 20, 2020, 07:28:01 AM »
Looking incredible Brian. With that prop it would make a heck of a fan for the patio.
Would a cordless drill work?

Greg

woodchucker

Re: Brian's 5 cylinder radial
« Reply #63 on: April 20, 2020, 08:33:48 AM »

      900 RPM  and Loads of torque    I think that may do the trick.
 It's a long time since i used  That tool.
:a102: :))
Jeff
Clausing 8520   SB Model 9a - power hacksaw, Milwaukee band saw in a table.  Delta Rockwell Surface Grinder (not online yet .. being rebuilt where am I going to stick this)
For pics: https://imgur.com/user/woodchucker/posts

brian

Re: Brian's 5 cylinder radial
« Reply #64 on: April 20, 2020, 04:04:34 PM »
Hi Greg
Yes possibly also it seem like a good excuse to buy one.I cant understand why I don't have one it seems to be a must have tool .
 This engine only has a comp ratio of 6/1.
Brian

kvt85

Re: Brian's 5 cylinder radial
« Reply #65 on: April 20, 2020, 05:08:07 PM »
6 to 1 for some reason I was thinking it was a higher.   In that case a smaller item like a drill may do it.   

Ken in SA TX

Jet 10x24 and Taiwan 10x24
Enco 30 mill
Sherline Lath and mill

brian

Re: Brian's 5 cylinder radial
« Reply #66 on: April 27, 2020, 02:10:19 PM »
Well that got me started , I did not take long to turn to size a piece of stock and drill the fixing holes. Then came the problem of shaping the thing ?? This has got to be just right so No1 eyeball cannot be relied upon, so I decided to make a profiling jig for the lathe. I all ready have studs for my taper turning attachment in the chip tray behind the bed so I fitted a piece of angle  in line with the bed  and turned a master to follow
,A stylus was attached to the cross slide and the feed screw removed, the compound slide was turned to provide the feed.
turning was done by applying some feed then traversing the saddle with the power feed and applying hand pressure to the cross slid.
 all in all I am very pleased with the result. and I have a new piece of kit as a bonus.

Brian.

savarin

Re: Brian's 5 cylinder radial
« Reply #67 on: April 27, 2020, 06:19:39 PM »
Nice, do you have to disconnect the cross slide lead screw?

brian

Re: Brian's 5 cylinder radial
« Reply #68 on: April 27, 2020, 10:52:20 PM »
 

    Yes  the feed screw was removed totally, just enough hand pressure was used to keep the stylus in contact with the master form.
     the cut was away from the chuck, starting at the outer edge
       
       Brian.

brian

Re: Brian's 5 cylinder radial
« Reply #69 on: April 28, 2020, 09:13:10 AM »
How's that for a smart spinner.


PJB

Re: Brian's 5 cylinder radial
« Reply #70 on: April 28, 2020, 05:28:14 PM »
Thats a work of art.   Love to see a video when its running.
1991 Bridgeport Series I 2J-VS  9"x48"
1979 Clausing Colchester Bantam Mk2 11"x30"
1972 Harig Super 612
2015 Tormach PCNC-1100 Mill

"I wants what you gots!"

brian

Re: Brian's 5 cylinder radial
« Reply #71 on: June 19, 2020, 12:42:04 AM »
   
    So now it's back to the serious stuff, Making the piston rings.
     Turn a tube of Iron.
     Split it lengthwise to make the ring gap.
     Clamp it tight in the chuck to close the gap and turn to size inside and out.
     Part off.

     26mm Diameter--1.5mm wide---1mm thick

     
« Last Edit: June 19, 2020, 12:45:52 AM by brian »

pep

Re: Brian's 5 cylinder radial
« Reply #72 on: June 26, 2020, 09:12:02 PM »
The shot of the engine next to the printer. Sure shows the size of that radial well. And then post the rings, and thinking about the machine work..... all I can say. It takes a fine touch to produce these parts.

Each piston having 3 rings?  What will be the fuel ?


Well done
« Last Edit: June 26, 2020, 09:18:27 PM by pep »