Engraving Forum.com - The Internet's Largest and Fastest Growing Engraving Community

The Internet's Largest and Fastest Growing Engraving Community
Discuss hand engraving using basic to the most advanced methods and equipment
Forum Members: 14,761. Welcome to our newest member, Bruno
EngravingForum.com - Domain since Feb 7, 2003

Graver Video Conferencing is empty Join now!


Go Back   Engraving Forum.com - The Internet's Largest and Fastest Growing Engraving Community > Forums > Lindsay AirGraver Info - Hand Engraving Forum
ENGRAVING TOOLS - Paypal accepted Classes Glossary Feedback Tips Sharpening Bulino Videos Forum Policies

Reply
 
Thread Tools
  #1  
Old 02-27-2019, 05:50 PM
Steve Lindsay's Avatar
Steve Lindsay Steve Lindsay is offline
Administrator
 
Join Date: Feb 2006
Location: Kearney, NE
Posts: 4,555
Default BULLDOZER graver point

Thanks to Otto Carter for sharing his BULLDOZER graver point! Here is a fixture to help make the point. If you are into some harder metals and breaking points, this fixture can help to modify the cutting edge with a very tiny squared off facet on the cutting edges that provide a bulldozer effect. www.AirGraver.com/news.htm





__________________
__________________________________
Steve Lindsay
AirGraver.com
EngravingArtist.com
Reply With Quote
  #2  
Old 02-28-2019, 06:03 AM
Crazy Horse's Avatar
Crazy Horse Crazy Horse is offline
Platinum
 
Join Date: May 2006
Location: Philly, PA
Posts: 302
Default Re: BULLDOZER graver point

Steve, is this similar to what is known in the machinist trade as a "Negative Rake?"
__________________
TOLERANCE is the virtue of a man without convictions.
Reply With Quote
  #3  
Old 02-28-2019, 07:44 AM
Steve Lindsay's Avatar
Steve Lindsay Steve Lindsay is offline
Administrator
 
Join Date: Feb 2006
Location: Kearney, NE
Posts: 4,555
Default Re: BULLDOZER graver point

Quote:
Originally Posted by Crazy Horse View Post
Steve, is this similar to what is known in the machinist trade as a "Negative Rake?"
Yes.. Well maybe more like a positive rake cutter with a negative rake honed on the cutting edge.
__________________
__________________________________
Steve Lindsay
AirGraver.com
EngravingArtist.com
Reply With Quote
  #4  
Old 02-28-2019, 07:51 AM
Otto's Avatar
Otto Otto is offline
Platinum
 
Join Date: Apr 2006
Location: Abilene, Texas
Posts: 257
Default Re: BULLDOZER graver point

Instead of dubbing just the tip, this dubs the entire leading edges. You only need to do it a tiny bit.
__________________
Otto Carter
Abilene, Texas
www.ottocarter.com

Aside from that, Mrs. Lincoln, did you enjoy the play?
Reply With Quote
  #5  
Old 02-28-2019, 05:52 PM
Crazy Horse's Avatar
Crazy Horse Crazy Horse is offline
Platinum
 
Join Date: May 2006
Location: Philly, PA
Posts: 302
Default Re: BULLDOZER graver point

Otto, I know from drilling brass and bronze that we would put a flat or negative rake on our drill bits and it would cut those metals much better.

I am assuming that this (flat) tool would be used for relieving background. The tiny (0.010???) flat would make for a very strong edge as well as lessening the tool from digging in. Am I correct?
__________________
TOLERANCE is the virtue of a man without convictions.
Reply With Quote
  #6  
Old 02-28-2019, 08:40 PM
Otto's Avatar
Otto Otto is offline
Platinum
 
Join Date: Apr 2006
Location: Abilene, Texas
Posts: 257
Default Re: BULLDOZER graver point

I make a super thin flat. Maybe one thousandth. I make any cut I need to in tough metals.
__________________
Otto Carter
Abilene, Texas
www.ottocarter.com

Aside from that, Mrs. Lincoln, did you enjoy the play?
Reply With Quote
  #7  
Old 04-04-2019, 01:02 PM
Eli Eli is offline
Copper
 
Join Date: Oct 2015
Location: Israel
Posts: 3
Default Re: BULLDOZER graver point

Hello Steve,

To prevent breaking on hard metals, I changed my graver face from 45 to 50 degrees and dubbed the point.
Can I use the BULLDOZER tool or will I have to change my gravers back to 45 degrees in order to use it?
Also will this tool works better than changing the angles for this purpose?

Thanks
Eli
Reply With Quote
  #8  
Old 04-04-2019, 01:50 PM
Steve Lindsay's Avatar
Steve Lindsay Steve Lindsay is offline
Administrator
 
Join Date: Feb 2006
Location: Kearney, NE
Posts: 4,555
Default Re: BULLDOZER graver point

Hi Eli, It works with any face angle.. 45..50 etc.
__________________
__________________________________
Steve Lindsay
AirGraver.com
EngravingArtist.com
Reply With Quote
  #9  
Old 10-27-2022, 01:43 PM
KaiOlavi KaiOlavi is offline
Gold
 
Join Date: Oct 2018
Location: Finland
Posts: 118
Default Re: BULLDOZER graver point

Quote:
Originally Posted by Steve Lindsay View Post
Hi Eli, It works with any face angle.. 45..50 etc.
That mark is 45 degrees, how do you make 50 degrees?
Reply With Quote
  #10  
Old 10-27-2022, 01:57 PM
Steve Lindsay's Avatar
Steve Lindsay Steve Lindsay is offline
Administrator
 
Join Date: Feb 2006
Location: Kearney, NE
Posts: 4,555
Default Re: BULLDOZER graver point

Quote:
Originally Posted by KaiOlavi View Post
That mark is 45 degrees, how do you make 50 degrees?
The mark is just for reference. Set your graver on and adjust angle until the cutting edge is parallel with the front edge that you will be honing.
__________________
__________________________________
Steve Lindsay
AirGraver.com
EngravingArtist.com
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Conduct
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 On

Forum Jump


All times are GMT -6. The time now is 04:08 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.