Author Topic: PMR #5 - as a fill in project  (Read 12996 times)

Offline Craig DeShong

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Re: PMR #5 - as a fill in project
« Reply #165 on: July 21, 2018, 02:31:06 AM »
Nice job Bill, and I like the way you did the one piece crank.  I'm going to file this away for future reference  :ThumbsUp:
Craig

Offline b.lindsey

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Re: PMR #5 - as a fill in project
« Reply #166 on: July 21, 2018, 12:17:29 PM »
Thanks guys. AS Chris said, it isn't an original idea and now that he mentions it I think something similar was included in the plans for the PMR #1, though that was a somewhat bigger crankshaft than on this one. Up till this one I have always used a built up crankshaft but decided to try to use the casting this time.

Bill

Offline Ye-Ole Steam Dude

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Re: PMR #5 - as a fill in project
« Reply #167 on: July 21, 2018, 01:46:17 PM »
Great job Bill and thanks for sharing the helpful process.

Have a great day,
Thomas

Offline b.lindsey

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Re: PMR #5 - as a fill in project
« Reply #168 on: July 27, 2018, 08:32:35 PM »
Finished up the valve stem caps this morning using the same fixture I used to face the edges, only this time I recessed the part between the screw holes to allow the triangular part of the casting somewhere to fit ( photo1). With this done the caps were screwed to it upside down, centered, and the 90 degree chamfering bit used to cut the "V" ( photo2). The finished parts are shown in the third photo.

Bill

Offline Tennessee Whiskey

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Re: PMR #5 - as a fill in project
« Reply #169 on: July 29, 2018, 11:51:58 PM »
They are a tad fiddly arenít they Bill? I like the jig idea. I canít for the life of me remember how I did mine  :facepalm:  Really looking good though.

Cletus

Offline b.lindsey

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Re: PMR #5 - as a fill in project
« Reply #170 on: July 30, 2018, 12:39:17 AM »
Thanks Cletus, it held them well and the cutter worked a treat too.

Bill

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Re: PMR #5 - as a fill in project
« Reply #171 on: July 30, 2018, 01:27:26 AM »
Good thinking there Bill!   

Dave
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Offline b.lindsey

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Re: PMR #5 - as a fill in project
« Reply #172 on: July 30, 2018, 01:34:00 AM »
Thanks Dave. Holding the main frame to do the mating "v"s will be the next challenge.

Bill

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Re: PMR #5 - as a fill in project
« Reply #173 on: July 30, 2018, 01:54:55 AM »
Work Cube!.... and a jack under the cylinder end  hanging out the side of the vise

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline crueby

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Re: PMR #5 - as a fill in project
« Reply #174 on: July 30, 2018, 01:56:54 AM »
Huh.


The cube I worked in didn't have all the air holes...


 :Lol:


Online steamer

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Re: PMR #5 - as a fill in project
« Reply #175 on: July 30, 2018, 02:04:05 AM »
Actually, I'd use the 3 sided one in the front

Dave
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Offline b.lindsey

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Re: PMR #5 - as a fill in project
« Reply #176 on: July 30, 2018, 02:10:53 AM »
Yeah, something along those lines is the plan, just scaled to fit the sherline.


Bill

Offline crueby

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Re: PMR #5 - as a fill in project
« Reply #177 on: July 30, 2018, 02:29:03 AM »
Dave, is that cube a homemade item? Never seen one before.

Online steamer

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Re: PMR #5 - as a fill in project
« Reply #178 on: July 30, 2018, 03:08:16 AM »
Possibly...but not by me.   These were once pretty common....but you see less of them now   It's a 4 sided box with tapped holes, but flat square and parallel.

Dave
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Re: PMR #5 - as a fill in project
« Reply #179 on: July 30, 2018, 03:31:33 AM »
Yeah, something along those lines is the plan, just scaled to fit the sherline.


Bill


How big is your vise Bill?

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!