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Messages - Monty

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1
Great work Tweaky!! I've thought about doing something along these lines too. I use FDM parts all the time for what I do. The process control on that is way too involved. Sintering I can see working. It would be neat to try some metal. Keep us posted. I have always thought it would be neat to mount a vat of something on my mill and use a 4th axis to run the Z with a laser in the spindle.

Monty

3
I haven't posted anything in a while. I thought some people might be able to use this idea.

When I got my turret, one of the boring bar holders had been crashed pretty good. The bore was all messed up and the holder smashed down and back. Dorian is rather proud of these little gems, so I had a pretty good incentive to try to salvage it. At first I thought about pressing a steel bush into it, bore it out and just use it for Deming drills. Then while talking to a friend of mine we hatched a plan to make a boring head (I don't have one that would work for this.) The idea was to use a piece of high speed steel. Then it occurred to me that I have a lifetime supply of broken or otherwise ruined .25 in. solid carbide end mills. My dad is into lapidary work and has a diamond saw and grinders. The light bulb went off.

So here is the result. I used a piece of drill rod, drilled and reamed a hole for the carbide. Drilled and tapped for a set screw. Ground the cutter as shown from the shank of an end mill. Set it up in the machine. The first cut was fantastic. I got a little bit of chatter on the subsequent cuts, but it works. I don't plan to use this holder for any precision work, but it will hold a drill just fine to poke a hole for a boring bar.

So not really exciting, but potentially useful.

Monty 

4
Finally got a chance to finish all the bushing seats today.

JH-Well I've been meaning to start a thread about the 5 axis, but I don't know when I'm going to start on it. I still need to buy the axis motors and drives. I have not even figured out exactly what hardware I'm going to use for machine interface yet. I need 6 axis output. The spindle drive is another axis.

Anyway, here is a teaser. >:D

Monty

5
General Mach Discussion / Re: auto toolchange cycle start elimination
« on: February 13, 2010, 07:23:49 PM »
Well no joy. M6end is completely empty. It still waits for cycle start.

Monty

6
Show"N"Tell ( Your Machines) / Re: My new project
« on: February 13, 2010, 07:21:31 PM »
Daniel,

I'm using Astro-Cut Synthetic in distilled water.

Tracking down bugs can really be a bear sometimes. Even if you think you have eliminated a possible problem sometimes you just have to start over from square one and go down the list. That is the only way I found out I had two bad cables. So sometimes trying the same thing over and over and expecting a different result is not insanity ;D. That's my story and I'm sticking to it.

Thanks,

Monty


7
General Mach Discussion / Re: auto toolchange cycle start elimination
« on: February 08, 2010, 06:38:29 PM »
Thanks Hood,

I'll check.

Monty

8
Show"N"Tell ( Your Machines) / Re: My Big Project am I crazy
« on: February 08, 2010, 05:44:59 PM »
Matt,

Not sure if I sent you off down the rabbit hole, but mill does not handle tool offsets the same way as Turn. Might still work out OK, but be a bit more involved than I thought at first. You might have to use some type of coordinate offset scheme to get it to work right.

Sorry, I had lathe on the brain.

Monty

9
JH,

Thanks. It's nice to finally get a chance to do something besides work on the machine. There is a lot more involved in that part than just the part ;).

Now I have to learn to use the darn thing.

Then I've got to start thinking about the 5 axis sitting in the corner feeling lonely.

Looking forward to seeing your lathe up and running.

Monty

10
Show"N"Tell ( Your Machines) / Re: My new project
« on: February 08, 2010, 05:20:12 PM »
Solved the problem on the lathe. It was a combination of not one, but TWO bad printer cables. I thought I had eliminated that variable by making up a new cable.

There was also a cold solder joint on the BOB.

All is well now:

http://www.youtube.com/watch?v=9B2d5HABSJk

Trouble shooting can be a real pain sometimes.

Monty

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