Project of the Month built by driller1432

Help Support Home Model Engine Machinist by donating using the link above or becoming a Supporting Member.
Home Model Engine Machinist > Building Them > Team Builds > Re: TB5 proposal

Reply
 
Thread Tools
Old 01-01-2011, 06:31 PM   #71
kjk
Woodworker (reformed)
 
Join Date: Apr 2010
Location: Winnipeg, Canada
Posts: 217
Liked 15 Times on 15 Posts

Default Re: TB5 proposal

Go Badgers!


kjk is offline  
 
Reply With Quote
Old 01-04-2011, 02:07 AM   #72
JorgensenSteam
Guest
 
Posts: n/a
Default Re: TB5 proposal

Here is the beginning of the cylinder lagging, made from 2" brass tube.

I initially tried to part off a piece of this, and ended up snagging it in the lathe, and bending a piece.

I ended up making a mandrel to hold it, which is just a piece of steel sized for the inside diameter of the tube, and slit in the cutoff saw. The inside was drilled out and a 3/4" pipe thread was a added. The mandrel expands on the end when the pipe is screwed in. Not a pretty piece of tooling work, but I did not want to waste a lot of time on something I was not sure would work.

This setup does work, but I would probably make the inside diameter of the mandrel larger and cut it more times. It takes a little more effort to tighten than I would like, but holds the tube well without deformation.

I set the carriage stop for the correct length of the lagging.
The tubing was cut slightly long, faced on one end, de-burred, rotated, and then faced up to the carriage stop position.

Finish is with fine emory cloth, maybe 600 grit.

You can see the rough mill finish on the tubes on the right.
The lagging piece on the left has a ding in it from the first crash, but since a slot will be cut out of each, then the defect can be omitted.

These can be buffed to a mirror finish if desired.



Attached Thumbnails
rIMG_3166.jpg   rIMG_3168.jpg  
 
 
Reply With Quote
Old 01-04-2011, 02:20 AM   #73
1hand
 
Join Date: Feb 2009
Posts: 914
Liked 49 Times on 46 Posts
Likes Given: 5

Default Re: TB5 proposal

Looks good Pat! glad the mandrel worked out for ya.

I finished up Fly wheel #3 tonight, and all three are different! I thought #3 was going to be like #2, but something got balled up in the gcode. When I started the program everything was going as planned, so up stairs I went for supper. When I returned, What a surprise! The outside of the spoke design stayed the same, but the center stepped down another .100". So now there is 2 designs in 1. I think its the best looking mistake yet to date!

Well, tomorrow night we see what #4 looks like....... after supper!

Matt
1hand is offline  
 
Reply With Quote
Old 01-04-2011, 02:23 AM   #74
kjk
Woodworker (reformed)
 
Join Date: Apr 2010
Location: Winnipeg, Canada
Posts: 217
Liked 15 Times on 15 Posts

Default Re: TB5 proposal

Computers. Gotta love 'em.
kjk is offline  
 
Reply With Quote
Old 01-04-2011, 02:42 AM   #75
1hand
 
Join Date: Feb 2009
Posts: 914
Liked 49 Times on 46 Posts
Likes Given: 5

Default Re: TB5 proposal

Quote:
Originally Posted by Woodguy
Computers. Gotta love 'em.
LOL..... I'm sure it was all operator error. I must of layered it different this time.

Matt
1hand is offline  
 
Reply With Quote
Old 01-05-2011, 11:14 PM   #76
kjk
Woodworker (reformed)
 
Join Date: Apr 2010
Location: Winnipeg, Canada
Posts: 217
Liked 15 Times on 15 Posts

Default Re: TB5 proposal

I shipped the base components to Pat this afternoon and he should have them in 4-7 days. Bases are in White Oak, Red Oak, Mahogany, and there is one in Walnut with its long edges bound in ebony because the walnut offcut was too narrow. There are engine bearers in Walnut, white oak and cherry. There are extra bases and bearers.

Do we have a final list of who is doing what parts?

kjk is offline  
 
Reply With Quote
Old 01-07-2011, 02:04 AM   #77
1hand
 
Join Date: Feb 2009
Posts: 914
Liked 49 Times on 46 Posts
Likes Given: 5

Default Re: TB5 proposal



Getting closer! Just need to turn the outer and bevel the edges.

Matt
1hand is offline  
 
Reply With Quote
Old 01-07-2011, 02:06 AM   #78
kjk
Woodworker (reformed)
 
Join Date: Apr 2010
Location: Winnipeg, Canada
Posts: 217
Liked 15 Times on 15 Posts

Default Re: TB5 proposal

Now that's a great group photo!
kjk is offline  
 
Reply With Quote
Old 01-07-2011, 02:53 AM   #79
RonGinger
 
RonGinger's Avatar
 
Join Date: Nov 2008
Location: Boothbay, Maine
Posts: 875
Liked 124 Times on 93 Posts
Likes Given: 7

Default Re: TB5 proposal

Matt, your letters look great.

I have done several items with letters and I find a common center drill works well as a cutter. they are much stronger than a 1/16" end mill and the V end makes a neat looking carved like letter.

The only tricky part is the depth of cut- because you are using a V cutter the line width changes a lot with just a little depth change.

For software get DeskEngrave- its free and does good job of letters, both on a line and around a circle. http://www.deskam.com/deskengrave.html
RonGinger is offline  
 
Reply With Quote
Old 01-07-2011, 03:01 AM   #80
1hand
 
Join Date: Feb 2009
Posts: 914
Liked 49 Times on 46 Posts
Likes Given: 5

Default Re: TB5 proposal

Thanks Ron. I kept breaking 1/16" end mills, do to my lack of experience. While waiting for more end mills to show up, I did like you said and tried a 5/16" V pointed end mill, and worked well. I will try the center drill next time. I do like the looks of the V shaped groove verses the standard slot an end mill makes.


Thanks
Matt


1hand is offline  
 
Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Plan 28 - A Proposal to Actually Construct Babbage's Analytical Engine Sleazey The Break Room 0 11-10-2010 07:14 AM
Proposal to design a "First Build" engine black85vette Plans 158 10-11-2010 02:42 AM



Newest Threads






- Top - Member List