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Old 10-12-2013, 10:18 PM
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dubby dubby is offline
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Default A little off the back, please...

So I had a little job come through Thursday. Got this aluminum block shipped to me in the mail, and the customer had asked me to widen it out. The block comes with the slot milled in it, and spacers situated to hold utility knife blades in place. This whole assembly is flipped upside down and used in a press to cut thin slits in soft plastic lures (tubes).

It comes where it'll hold 11 blades, and the customer wanted at least two more blades, or more if I could get them to fit. I managed to 'fit' 16 in, but decided 15 was easier so I left it there. The piece jumped out of my vise, and has a little hickey in it, but it didn't affect anything and I didn't bother trying to clean it out. I do a lot of work for this guy, he understood and didn't care. The spacers are just 1/2" wide, 1/16" strip material. I didn't have any, so had to cut some out of plate. It's kinda ugly, but works.

I'll most likely come up with this same sort of apparatus to sell in the future, but for now I'm not gonna worry much about it.

Anyhow, as I was milling the sides out, I noticed that I was struggling to see the cut. I hollered at Dot1, and asked to borrow one of her makeup mirrors. After a brief fight and lots of convincing that I wouldn't break it, she allowed me to finish up the job. It worked so well, I decided I needed a more permanent solution and dug out a scrap piece of mirror I had stashed. I wrapped the sides in some tape to keep the edges from being so rough, and stuck it to the back of my enclosure with double-sided tape.
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  #2  
Old 10-13-2013, 12:09 AM
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akabull akabull is offline
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Great idea! But I wonder how it will hold up against metal chips beating on it all the time? Maybe a sacrificial piece of plexi in front of it?
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Old 10-13-2013, 07:21 AM
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Dubby,

Is that machine running the LinuxCNC program? Looks good either which way.

If you really wanted some hi tech stuff you could dig out one of your old computers put on a little camera in the back and have it show up on you monitor. . A rainy day project for sure.

Scott
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Old 10-13-2013, 07:58 AM
Lew Hartswick Lew Hartswick is offline
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Quote:
Originally Posted by Scotts View Post
Dubby,
If you really wanted some hi tech stuff you could dig out one of your old computers put on a little camera in the back and have it show up on you monitor. . A rainy day project for sure.

Scott
And while youre at it. a tilt/pan head with an X - Z travel included. :-)
...lew...
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Old 10-13-2013, 11:23 AM
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Quote:
Originally Posted by akabull View Post
Great idea! But I wonder how it will hold up against metal chips beating on it all the time? Maybe a sacrificial piece of plexi in front of it?
I thought about that, but decided it was too cheap to matter, lol. Twice a year, you can pick up the 'full length mirrors' just about anywhere for $1-5 a piece. It's super cheap chit, and about the best thing going for project material where you need a mirror.


Scotts, yup, that's the one. Linux and the CNC component of it are performing flawlessly for me. The only thing I really don't care for is that it's kind of like Windows in that it constantly has some sort of update/upgrade available. I'm sure the easy way to get rid of that is to drop the wireless connection, but there have been a few times I've actually needed to have both machines with open browsers.

In addition to the purdyin-up with the mirror, I swapped in a set of 10k rpm pulleys while I had it unbolted from the case. I havn't run a full program at the higher speed yet, but so far I'm impressed. Surface finish is WAY up, and since tooling that small is generally solid carbide, the speed is helping.
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Old 10-13-2013, 12:47 PM
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A polished piece of stainless will hold up much better than glass.
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  #7  
Old 10-13-2013, 05:41 PM
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That might be a good upgrade for sure milo. May get a sheet done up for the future. Although this mirror is thin, a piece of stainless would certainly get out of the way more. I had to re-route a couple of the control wires just to get this to fit without drilling new holes in the cabinet floor.
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Old 10-14-2013, 01:22 PM
coleasterling coleasterling is offline
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Good to hear the higher speed pulley is working well! What size EM were you running there?
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Old 10-14-2013, 02:21 PM
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That one is a 3/32" ballnose stub. I used my 3/8" flat to widen the slot in that block, but had not installed the pulley set yet.

I have yet to try some of my 1/32" flat EMs. I dropped one of them on the floor and it snapped, it missed my floor mat by 2". I don't know if it would've broken had it hit the mat though I bet it would've. I dunno what sort of feed/speed/depth I should even start with on them, lol.
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Old 10-14-2013, 02:32 PM
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Dub, no idea what your doing and what or how it works but it looks cool.
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