First attempt at bench running elliptical moulding

Members online

Cisco

New Member
Thanks to the info on this site and a few others ;) I made my first attempt @ bench running some elliptical moldings.

Cheers
 

Attachments

  • Ellipse1.jpg
    Ellipse1.jpg
    844.1 KB · Views: 587
  • Ellipse2.jpg
    Ellipse2.jpg
    878.2 KB · Views: 532
  • Ellipse3.jpg
    Ellipse3.jpg
    788.4 KB · Views: 524
  • Ellipse4.jpg
    Ellipse4.jpg
    749.2 KB · Views: 529

Cisco

New Member
That looks really smart mate, are you self learning, or at college?

Thanks for the comments!

Basically self taught. No college or training ,went to work when I was young after leaving school. Been installing interior stone for the past 3 decades so I have experience in figuring s**t out and have been on jobs were guys were installing fibrous plaster and running in situ, thought I would give it a go.

Cheers
 

Oxford

Member
You should be really proud of that as a first attempt. I have been teaching my self bits of insitu running, I'm really enjoying it! Are you going to do any other decrative pieces?
 

Cisco

New Member
A few progression shots. Finished moulding, keystone and mold, and my little helper

Cheers
 

Attachments

  • 20170708_202335.jpg
    20170708_202335.jpg
    757.6 KB · Views: 344
  • 20170708_202346.jpg
    20170708_202346.jpg
    735.8 KB · Views: 378
  • 20170708_165716.jpg
    20170708_165716.jpg
    897 KB · Views: 368
  • 20170708_165628.jpg
    20170708_165628.jpg
    486.9 KB · Views: 372
  • 20170708_165720.jpg
    20170708_165720.jpg
    793.1 KB · Views: 397
  • 20170702_202542_001.jpg
    20170702_202542_001.jpg
    404.7 KB · Views: 342

mikeadams1985

Private Member
looks good fella,
but defiantly the long way round,
ellipse can be run quickly, easily and to a perfect ellipse using a trammel.
 

Cisco

New Member
looks good fella,
but defiantly the long way round,
ellipse can be run quickly, easily and to a perfect ellipse using a trammel.

Unfortunately a trammel will not work for this application, I can mark a perfect ellipse with the trammel but I could not use it to run moulding as the major and minor axis have an extreme offset. The major axis is over 180cm and the minor axis is about 19cm. Because the trammel uses pivot points sliding through a preset tracks and not true radius running the knife noticeably would drag through the run skewed once it is off the major and minor axis center points. I attached a cad screenshot to visually explain it, not sure if I am explaining it good enough. In the screenshot you can see the three colored points the knife would run using a trammel. The yellow indicates major axis center pint where the moulding is 107.95mm wide, at the cyan colored line point the knife is running skewed and the moulding is now @ about 101.6mm, at the green colored line point the moulding is now @ about 92mm, as you continue through the run the knife would correct itself When parallel to the major axis. The white lines are the radius angles the knife should be at.

Cheers
 

Attachments

  • EllipseTrammel.jpg
    EllipseTrammel.jpg
    318.1 KB · Views: 283
Last edited:

zombie

Private Member
Unfortunately a trammel will not work for this application, I can mark a perfect ellipse with the trammel but I could not use it to run moulding as the major and minor axis have an extreme offset. The major axis is over 180cm and the minor axis is about 19cm. Because the trammel uses pivot points sliding through a preset tracks and not true radius running the knife noticeably would drag through the run skewed once it is off the major and minor axis center points. I attached a cad screenshot to visually explain it, not sure if I am explaining it good enough. In the screenshot you can see the three colored points the knife would run using a trammel. The yellow indicates major axis center pint where the moulding is 107.95mm wide, at the cyan colored line point the knife is running skewed and the moulding is now @ about 101.6mm, at the green colored line point the moulding is now @ about 92mm, as you continue through the run the knife would correct itself When parallel to the major axis. The white lines are the radius angles the knife should be at.

Cheers


Well foook me thats me confused sounds like NASA putting a man on the moon to me!!!
 

Cisco

New Member
Sorry guys, it wasn't my intent to confuse, just wanted to point out some of the limitations of using a trammel with an oblong ellipse. I try it again with a less confusing drawing.

Cheers
 

Attachments

  • TrammelDetails.jpg
    TrammelDetails.jpg
    161.9 KB · Views: 270
Sorry guys, it wasn't my intent to confuse, just wanted to point out some of the limitations of using a trammel with an oblong ellipse. I try it again with a less confusing drawing.

Cheers

Hahaha I think it is a case of not having any idea about it at all :D (thats me especially)
 

mikeadams1985

Private Member
cisco, i get ya, it becomes off square so to speak and the more off square the narrower the mould gets.
had that before with a huge mould we had to run but it was a random shape so was a c**t to run without going offsquare
 

Cisco

New Member
Sorry for the two year wait. Some install photos.

Cheers
 

Attachments

  • 20190706_185701_001.jpg
    20190706_185701_001.jpg
    324.5 KB · Views: 166
  • 20190706_185738.jpg
    20190706_185738.jpg
    254.7 KB · Views: 171
  • 20190706_185757.jpg
    20190706_185757.jpg
    326.6 KB · Views: 168
  • 20190707_113635.jpg
    20190707_113635.jpg
    328 KB · Views: 172
  • 20190707_140148.jpg
    20190707_140148.jpg
    297.7 KB · Views: 162
  • 20190708_092101.jpg
    20190708_092101.jpg
    218.6 KB · Views: 170
  • 20190708_092219.jpg
    20190708_092219.jpg
    250 KB · Views: 157

martinemj

Well-Known Member
Looks great work
..fitted cornice and mouldings but making is something I've never got involved in but looks interesting work
 

Cisco

New Member
Second and smaller archway DONE!!!

Cheers
 

Attachments

  • 20190707_113812.jpg
    20190707_113812.jpg
    289.9 KB · Views: 146
  • 20190707_113753_001.jpg
    20190707_113753_001.jpg
    323.5 KB · Views: 159
  • 20190716_114508.jpg
    20190716_114508.jpg
    311.4 KB · Views: 143
  • 20190716_114535.jpg
    20190716_114535.jpg
    266.6 KB · Views: 140
  • 20190716_114631.jpg
    20190716_114631.jpg
    264.2 KB · Views: 168
  • 20190716_114655.jpg
    20190716_114655.jpg
    246.5 KB · Views: 161
  • 20190716_114708.jpg
    20190716_114708.jpg
    243.8 KB · Views: 141

DaveCP

New Member
Inspirational, love it and enjoyed the photos.

I've never seen that orange flexi-curve before, has it a name? I'd like to get one. Also, is it mini castors I can see on the side of your horse?
 
Top