|
Post by jakesrocks on Oct 23, 2011 12:40:14 GMT -5
Nate, something else you'll want is a large selection of wooden wedges and blocks. If a rock is too uneven to get a good grip on, you can often put wedges in between the rock and vice jaws. Also, if the piece you're clamping is less than half the width of your vice jaws, put a block of wood near to the same width of the rock in the opposite end of your vice. It will reduce the chance of bending or breaking something.
|
|
NDK
Cave Dweller
Member since January 2009
Posts: 9,440
|
Post by NDK on Oct 23, 2011 18:07:15 GMT -5
Got 'er on the list, Don. Thanks. Nate
|
|
NDK
Cave Dweller
Member since January 2009
Posts: 9,440
|
Post by NDK on Oct 30, 2011 10:45:59 GMT -5
I got more work done on the saw tub, then got most of the fiberglass work done yesterday. I can say I never wanna work with that fluffy flossy fabric ever again! At least not in that size of pieces. It turned out ok. It's certainly not a show quality job, but should suffice. I still gotta build the cover and seal that up with the resin, but thast should be easy. As long as I'll be mixing it, I'll probably coat the outside of the tub with resin too. I'm getting excited to finish this! Nate
|
|
|
Post by jakesrocks on Oct 30, 2011 12:27:03 GMT -5
Not too shabby for a first attempt at laying fiberglass. Give it a couple days to really cure, then sand those exposed strings off. Don t want to stab yourself on them the first time you clean the rock snot out of the tank.
|
|
NDK
Cave Dweller
Member since January 2009
Posts: 9,440
|
Post by NDK on Oct 30, 2011 20:13:07 GMT -5
Thanks Don. That would suck getting poked while cleaning...
Nate
|
|
NDK
Cave Dweller
Member since January 2009
Posts: 9,440
|
Post by NDK on Nov 6, 2011 17:56:55 GMT -5
I got the lid made today. I must have used a right handed tape measure, because it was too wide, and too short so I just added a piece to the end. That worked out ok, because I was gonna reinforce the hinge side with a block of wood anyway. Then since it was still nice out I got the rest of the fiberglass resin mixed up and slathered on the cover, and also on the outside of the tub. I used a whole gallon of resin on the project - it should be sealed for sure! I'm happy I had decent weather to get this resin on. Now the weather doesn't matter, as everything else can be done in the shop. Nate
|
|
|
Post by jakesrocks on Nov 6, 2011 18:25:04 GMT -5
Hey Nate, you're getting there little by little. At least you won't have to worry about the box soaking up oil and starting to de-laminate.
|
|
NDK
Cave Dweller
Member since January 2009
Posts: 9,440
|
Post by NDK on Nov 6, 2011 18:31:58 GMT -5
I think I'm over the hump on this project Don. Biggest hurdle now will be getting the vise mounted. Also I was going to do gravity feed to keep it simple, but I have a small motor that I think I can use for a power feed. Once I dig it out I'll post a picture and get some of y'all's opinions if it'll work.
Nate
|
|
|
Post by jakesrocks on Nov 6, 2011 18:51:08 GMT -5
Hey Nate, is that a gear reduction motor ? All of the power feeds use gear head motors and turn real slow.
Don
|
|
NDK
Cave Dweller
Member since January 2009
Posts: 9,440
|
Post by NDK on Nov 6, 2011 22:20:00 GMT -5
Don, it's a small motor off a Christmas decoration - one of them wire deers that moves its head like it's eating. It moves at somewhere around 5 rpm IIRC, verrry slow. The way it's shaped makes me think it is a gear motor.
Nate
|
|
sampson
starting to spend too much on rocks
Member since April 2011
Posts: 222
|
Post by sampson on Nov 6, 2011 22:35:12 GMT -5
Great thread, thanks for sharing your build with all the steps. I need to build myself a big saw since i always seem to bring home rocks that are waaaaay to big for my little saw. This has given me a good idea on where to start and parts to start accumalating for the build.
|
|
NDK
Cave Dweller
Member since January 2009
Posts: 9,440
|
Post by NDK on Nov 7, 2011 20:30:01 GMT -5
I should've asked for a winning lottery ticket when I looked for this motor, I found it right where I hoped it would be! Anywho, here's the motor with a penny sitting on it for scale. It runs at 5 rpm by my count. I want to believe it is a gear motor because of the offset shaft. Think it'll work for a power feed?
|
|
|
Post by jakesrocks on Nov 7, 2011 20:46:52 GMT -5
That is a gearhead motor. But weather it will have enough power to drive your vice is another matter. Why don't you remove those 4 screws and lift the motor out. It may be marked wiith its HP rating. Also, most motor driven power feeds have some sort of slip clutch between the motor out shaft and the power drive screw. Don't know what the diameter of that outshaft is, but you may be able to buy the slip clutch , feed screw and split nut clamp from Covington. Everything at least up to 16" uses a 1/4" feed screw and slip clutch.
|
|
NDK
Cave Dweller
Member since January 2009
Posts: 9,440
|
Post by NDK on Nov 7, 2011 21:09:18 GMT -5
I pulled the motor out of the housing Don. It only says 12 vac 50/60Hz 3.8W, 4.2/5RPM CW/CCW. No HP rating.
BTW, the shaft is 1/4".
Nate
|
|
|
Post by jakesrocks on Nov 7, 2011 21:15:38 GMT -5
I guess all you can do is try it out. The RPM's should be slow enough for a power feed, and the reduction gears help to increase the power.
|
|
NDK
Cave Dweller
Member since January 2009
Posts: 9,440
|
Post by NDK on Nov 7, 2011 21:30:20 GMT -5
So what's the slip clutch like? How does it work? I know the general idea, but have never seen one.
Nate
|
|
|
Post by jakesrocks on Nov 7, 2011 21:40:08 GMT -5
That I can't explain without taking one of mine apart. Maybe one of the other members has had one apart, and can explain it to you.
|
|
NDK
Cave Dweller
Member since January 2009
Posts: 9,440
|
Post by NDK on Nov 7, 2011 21:54:30 GMT -5
I tried to stop the shaft from turning by hand and couldn't. Then I grabbed it with a pliers and to my surprise it reversed direction lol. I'm sceptical if it would have enough power for pushing the vise and rock into the blade. But if it did, I think it would be neat if the motor reversed if the rock binds on the blade.
|
|
|
Post by tandl on Nov 7, 2011 21:55:34 GMT -5
The rpm is good , so if it has enough power it will work, nothing to lose trying it . My sister was throwing away a santa that moved his head and arms yesterday, i snag it ;D
|
|
NDK
Cave Dweller
Member since January 2009
Posts: 9,440
|
Post by NDK on Nov 8, 2011 21:46:08 GMT -5
If I put a pulley on the gear motor, then put one twice the size on the power feed threaded shaft, that would cut the RPM in half, correct? Would it also double the power of the motor?
Nate
|
|