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View Full Version : Serious Job On Unimat - Slitting w Indexing



Paul Alciatore
03-01-2005, 09:12 PM
I thought some of you (Evan) might like seeing the Unimat used for a paying job. I was making some heads for some stands. They will grip the 3/8" support rod and allow it to be adjusted up and down. Slitting was the last operation.

http://img.photobucket.com/albums/v55/EPAIII/SlittingOnUnimat1.jpg

http://img.photobucket.com/albums/v55/EPAIII/SlittingOnUnimat2.jpg

I was really pleased with the results. The cuts were so clean that absolutely no deburring was needed. About 1900 RPM and I fed it in as quickly as I could crank. The indexing attachment allowed me to make the second cut at 90*.

Paul A.

mattc
03-02-2005, 01:43 AM
is that blade for a small circular saw or is it a sliting saw blade

Matt in AK

Evan
03-02-2005, 02:02 AM
That looks like a carbide tooth blade. Pretty cool. I haven't used my Unimat much at all yet as I have been working on the milling machine project. It isn't going all that fast. At least it seems that way because I have been basically making a "kit" of parts. Now I have to assemble them.

mklotz
03-02-2005, 11:13 AM
Paul,

I'm curious. What's that blue box-shaped thing that appears to be suspended
over the workpiece from a strap bolted to the headstock? Also the small black
box above it in the first picture?

Regards, Marv

Home Shop Freeware - Tools for People Who Build Things
http://www.geocities.com/mklotz.geo

Paul Alciatore
03-02-2005, 12:32 PM
The blade is a 4 3/8" carbide tipped panneling saw blade I got at the local hardware. I mounted it with the Unimat arbor - same size hole. I have a couple of the Unimat brand blades but this works better, faster cutting. Centering is not as good as the Unimat blades but it works well.

The two gray aluminum blocks are attached to flats I milled on the headstock casting and the spindle pulley bracket with steel brackets and they allow me to mount a 1" DI for reading spindle position when milling. The DI mounts in the hole in the top block. The handwheel is on a 1/2-20 screw that allows zeroing the DI at any position in the range. The crank on it was a mistake as I found that a small handwheel on a tightly fitted screw (no backlash) will not turn easily enough for cranking. Live and learn.

This DI setup also allows accurate dimensions to be set while turning as long as the distance is within the 3/4" +/- range of spindle travel.

I had intended to add a 2" DI to the cross feed and a digital depth gauge to the saddle position but have been sidetracked onto other projects. I have the DI, depth gauge, and some of the parts.

Paul A.

Thrud
03-02-2005, 01:19 PM
Spiffy!

mattc
03-02-2005, 02:28 PM
looks like a nother machine I need in my shop

Matt in AK

wierdscience
03-02-2005, 09:01 PM
Neat!Oneday I will find one in a garage sale,till then I can only want.

Last one that came up local,the guy had every single attachment,but he wanted $900 and wouldn't talk.