Author Topic: Muncaster Grasshopper - Work in Progress  (Read 37897 times)

Offline kvom

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Re: Muncaster Grasshopper - Work in Progress
« Reply #150 on: September 26, 2018, 12:49:25 PM »
Can't you just offset the tailstock and machine from one length. If you don't want to offset it use a boring head in the tailstock and a simple homemade ctr for it.

I'm hesitant to move the tailstock.  I knew about the boring head option but it had completely slipped my mind.  I'll give it a try, as I have extra material.  The taper is pretty slight, 4 degrees included.

Offline kvom

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Re: Muncaster Grasshopper - Work in Progress
« Reply #151 on: October 01, 2018, 10:24:21 PM »
Boring head technique for turning a taper will have to wait as my boring head takes 3/4" bars and has a 3/4" straight shaft, too large to mount in the largest drill chuck that fits my tailstock.  But I was able to use the section of taper generated by the taper attachment via trimming both ends of the work.

Here are the columns in place temporarily on the engine.  I intend to leave the base and capitols unpainted brass, and I'll powder coat the columns once I decide between red and grey.



I'm off on my fall trip on Thursday so I'm not sure when the next update will be posted.

Offline crueby

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Re: Muncaster Grasshopper - Work in Progress
« Reply #152 on: October 01, 2018, 10:30:08 PM »
That taper does add a lot to the looks of the columns.
 :popcorn: :popcorn: :popcorn:

Offline Ye-Ole Steam Dude

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Re: Muncaster Grasshopper - Work in Progress
« Reply #153 on: October 01, 2018, 10:54:37 PM »
Hello kvom,

Beautiful  :ThumbsUp:

Have a great day,
Thomas
Thomas

Offline Craig DeShong

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Re: Muncaster Grasshopper - Work in Progress
« Reply #154 on: October 10, 2018, 03:59:33 PM »
This thing is,going to be colossiously gorgeous! !!
Craig
The destination motivates us toward excellence, the journey entertains us, and along the way we meet so many interesting people.

Offline kvom

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Re: Muncaster Grasshopper - Work in Progress
« Reply #155 on: October 24, 2018, 10:36:46 AM »
I've been away for 3 weeks visiting Jordan and Egypt.  After seeing the wonders of Petra and the Pyramids, it will be nice to get back to model building.  And jet lag means I get to browse the forum very early in the morning for the next week or so.

Offline crueby

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Re: Muncaster Grasshopper - Work in Progress
« Reply #156 on: October 24, 2018, 01:17:05 PM »
I've been away for 3 weeks visiting Jordan and Egypt.  After seeing the wonders of Petra and the Pyramids, it will be nice to get back to model building.  And jet lag means I get to browse the forum very early in the morning for the next week or so.
Welcome back!  So with all that as inspiration, are the next parts of your engine going to be out of carved stone?!   :Lol:

Offline kvom

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Re: Muncaster Grasshopper - Work in Progress
« Reply #157 on: October 24, 2018, 04:38:19 PM »
I'm waiting for you to make a stone submarine.   :stickpoke:

Offline crueby

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Re: Muncaster Grasshopper - Work in Progress
« Reply #158 on: October 24, 2018, 05:54:58 PM »
I'm waiting for you to make a stone submarine.   :stickpoke:
I did a Marble polar bear, does that count? It would go right to the bottom...

Offline Ye-Ole Steam Dude

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Re: Muncaster Grasshopper - Work in Progress
« Reply #159 on: October 24, 2018, 06:05:22 PM »
I'm waiting for you to make a stone submarine.   :stickpoke:


Hello kvom,

How about having Chris make a steam powered submarine :thinking:

Have a great day,
Thomas
Thomas

Offline crueby

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Re: Muncaster Grasshopper - Work in Progress
« Reply #160 on: October 24, 2018, 08:12:13 PM »
I'm waiting for you to make a stone submarine.   :stickpoke:


Hello kvom,

How about having Chris make a steam powered submarine :thinking:

Have a great day,
Thomas
Its so hard to get a working nuke reactor that small (to drive the steam turbine) - and the water down the stack keeps putting out the coal fire!   :Lol:

Offline kvom

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Re: Muncaster Grasshopper - Work in Progress
« Reply #161 on: November 03, 2018, 12:22:20 AM »
Having been afflicted with jet lag all week I refrained from working with power tools.  But that didn't prevent the wife from drafting me to change out a toilet and 3 light fixtures.  I guess working with electricity on a stepladder must be safer.   ::)

In any case, today I decided to do another experiment for powder coat brickmaking.  My first sample using just the orange power came out a bit too orange for my taste, so I mixed some orange and red powders in equal amounts and coated some aluminum scrap. Better but now too read.  Added more orange to the mix, and that looks about right, so 2:1 orange:red will be the goto for building the sub base.

Going over the Mic6 plate with some fine Scotchbrite before powder coating improves the powder adhesion and makes a much more even coating than the prior test.  I don't have to make the base out of this aluminum but I have quite a bit left over from the Colibri project,

Offline kvom

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Re: Muncaster Grasshopper - Work in Progress
« Reply #162 on: November 23, 2018, 07:33:33 PM »
With  Black Friday underway and me alone in the house, I decided to get back in the shop with the goal to finish the pump and its attachments.  Went to check the drawings and discovered my Solidworks license for 2018 has expired, and it will be next week until the new version can be downloaded.   >:(

I can at least make a start on the obvious parts.

Offline b.lindsey

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Re: Muncaster Grasshopper - Work in Progress
« Reply #163 on: November 23, 2018, 11:03:36 PM »
Hope you had a great trip Kirk. Nice to see progress on this beautiful engine.

Bill

Offline kvom

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Re: Muncaster Grasshopper - Work in Progress
« Reply #164 on: December 09, 2018, 07:50:19 PM »
Some slow paced shop time the past week or so.  Managed to finish the dummy pump, except for the gland, and its beam linkage.



I ordered some aluminum for the long sides of the "brick" base, but will plan to work on the ends in the interim.

 

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