- Joined
- Oct 4, 2011
- Messages
- 727
I was looking to make a new grooving tool for a project I am working on. Instead of just grinding a HSS blank like I normally would I decided to try a project I had seen posted somewhere online. Sorry can't remember the site. The project was to make a cut off tool from sections of a carbide tipped wood saw blade. A few months back a friend of mine at a local cabinet shop had given me several sets of chipper blades for dado sets. I got 15 or so blades each with two cutting tips. They were tossing them since several had chipped teeth.
Used the roto zip with a cut off blade to cut a 20 degree wedge off the end of the chipper blade leaving the carbide on the end.
Chunk of mystery steel from the scrap box. Milled it fit a quick change tool holder.
Set it up to cut a 20 degree shoulder on one end to hold the cutter.
Drilled and taped for 1/4-20 button head bolts left over from my cam lock project.
A quick clean up on the diamond wheel to get me angles right and cut an .125 diameter nose on it.
Finished tool on the tool post.
Here it is cutting the brass stock. Worked great. Also tested it by cutting off a piece of scrap 1.000" diameter steel. It cut just like one of my HSS cut off tools.
Total time for the project was less than and hour and cost was time pulse 2 bolts. It defiantly is not going to replace my cut off tool but for small grooves I think it will work great. It will keep me from having to waste a bunch of HSS to shape out different small contours as I need them. I can see using it to cut very thin groves as well. Also have a box of the cheep high carbon chipper blades to use next time I need to cut some funky shape in delrin or nylon. Over all not a tool I would spend money to make and not one I will use often but for what it does it does very well.
Jeff
Used the roto zip with a cut off blade to cut a 20 degree wedge off the end of the chipper blade leaving the carbide on the end.
Chunk of mystery steel from the scrap box. Milled it fit a quick change tool holder.
Set it up to cut a 20 degree shoulder on one end to hold the cutter.
Drilled and taped for 1/4-20 button head bolts left over from my cam lock project.
A quick clean up on the diamond wheel to get me angles right and cut an .125 diameter nose on it.
Finished tool on the tool post.
Here it is cutting the brass stock. Worked great. Also tested it by cutting off a piece of scrap 1.000" diameter steel. It cut just like one of my HSS cut off tools.
Total time for the project was less than and hour and cost was time pulse 2 bolts. It defiantly is not going to replace my cut off tool but for small grooves I think it will work great. It will keep me from having to waste a bunch of HSS to shape out different small contours as I need them. I can see using it to cut very thin groves as well. Also have a box of the cheep high carbon chipper blades to use next time I need to cut some funky shape in delrin or nylon. Over all not a tool I would spend money to make and not one I will use often but for what it does it does very well.
Jeff