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Paul Frederick
Lives in Delaware
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Paul Frederick

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Now 4Chan phishing expeditions are considered legitimate sources in mainstream media. We are living in the new reality where fantasy is the law of the land. Absolutely nothing is credible anymore.
The forum alleged an anonymous user invented Tuesday’s bombshell about Donald Trump and Russian prostitutes. But there’s a weak stream of proof.
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Linux Lady05 Winter's profile photo
 
Bahahaha and CNN reported that trash! 
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Paul Frederick

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Breaking news. Shots fired. State responds by sending more people with guns to deal with the situation. So, I guess it isn't guns that are the problem, but rather the solution?
Early reports from police at the seen suggest a half dozen victims and a suspect in custody.
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Mat Helm's profile photoDave Hefner's profile photoPaul Frederick's profile photo
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+Dave Hefner
even Robocop packed heat.
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Paul Frederick

Discussion.  - 
 
Phew, I'm glad that is done. This started out as one of those, "little upgrades" that quickly turned into an interminable task. Let's see, I changed the power supply, the motor drives, made a new cabinet to house the electronics, made a new Z axis, and put a new spindle on the machine too. Oh yeah, and I modified my pen holder to fit the new spindle clamp.

I think that is all I did? I also moved the machine too. Come to think about it I made that remote switch box as well. But I am much happier with the new setup than how I used to have it. I think it will be a lot easier to live with going forward.

So here's a picture of my first run, ironing out some backwards axis issues.
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James Newton's profile photoPaul Frederick's profile photo
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+James Newton
I'm pretty sure I just have my acceleration set too high right now. I already compared my old ini file with my new one and my acceleration is 4 times higher than it used to be. So that is likely where my trouble is. I am going to cut that in half, and see if things improve any.
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Paul Frederick

Discussion.  - 
 
I have a puzzle for people tonight. Who can guess what the aluminum profile that I made this bracket out of used to be?
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James Newton's profile photoChaotic Logic's profile photoPaul Frederick's profile photo
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+Chaotic Logic
it's funny, right? Boys and their toys.
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Paul Frederick

Discussion.  - 
 
If I didn't know any better I'd almost think these metal end caps were made for this.
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Paul Frederick

Discussion.  - 
 
Sometimes square matters. Not in this case, but it is one gauge of accuracy. Here identical length matters more. But things being square is nice too. I don't have any high precision equipment so I cut stock as close as I can, then I file, and sand it to fit. It is a tedious, and time consuming process. But that's what it takes.
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John Bump's profile photoPaul Frederick's profile photo
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+John Bump
Yes, I would hope whoever checked their flat surfaces would check them from several different orientations.

I don't have a surface plate. I use either my table saw top, my anvil, or the glass top of my desk. It depends where I'm at. For the kind of work that I do any of that is flat enough.

For any garage engineering I am of the mind that you cannot rely too heavily on accuracy. So I try to design with some built in fudge factor. I can try to get things close, but realistically I can only count on getting things so close.

The holes I drilled for these plates are about five thousandths of an inch within each other. For some odd reason one is way out. Maybe there was a chip in the fixture that I didn't catch? That's the way the cookie crumbles.

It still works, because it is all close enough.
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Paul Frederick

Discussion  - 
 
This might just work. I am using all open source software in this tool chain. The model was made in OpenSCAD, then the G Code was generated in PyCAM, and the resulting code is open to view in CAMotics.

After the Packers Giants game I'll try to run it.
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Ross Hendrickson's profile photoPaul Frederick's profile photo
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+Ross Hendrickson
a lot of people like Solidworks. Right now the free Fusion360 is very popular too. But I run Linux, so that limits my options, to what runs on my OS.
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Paul Frederick

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Just because yesterday I honestly didn't know. So I had to pull the set out and look at them.
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Paul Frederick

Discussion.  - 
 
It's getting there. Actually I think it is pretty much there now. I still need to wire it up though.
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Steve Slese's profile photoPaul Frederick's profile photo
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+Steve Slese
yes they're NEMA 23s. I don't have very great drivers for them though. Just some TB6600s.
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Paul Frederick

Machines Gallery.  - 
 
On the flat it runs at 102 inches per minute. It stalls out at 108 IPM. I will cap it at 90 IPM. Good enough.
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James Newton's profile photoPaul Frederick's profile photo
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+James Newton
I can mock it up and take a picture of it. I have to warn you though, it is an extremely basic setup. http://i.imgur.com/2SD7t9C.jpg The trick is in the order that you drill the holes. You do the two diagonal holes, then flip the piece, and drill the other two holes. That way dimensions stay the same between parallel sides. Because those parallel sides are always against the same stops.
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Paul Frederick

Discussion.  - 
 
I guess I should explain why identical length matters in my previous post. I am using that length to transfer measurements throughout the two pieces. I Center punched one spot, then used a spud in the chuck to align it as best as I could. Now using a stop block I will position each piece, and spot drill the location of where I will drill. Keeping orientation the same, the holes should all come out in the same place. I just need to flip the pieces around end for end to maintain the same hole location.
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Kyle Kerr's profile photoPaul Frederick's profile photo
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+Kyle Kerr
it's my spudy buddy. A spud is the best way I've found so far to line up a center punched hole to drill. Spuds really get to the point of matters.
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Paul Frederick

Discussion.  - 
 
This is a proof of concept model. I was not so keen on the performance of the last Z axis I made, so I decided to try this. So far this seems to slide well, and is rigid. Instead of those plastic end caps I will make the final version with steel angle ends. The plastic was just to check my dimensions, and hold it  together temporarily.
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Marc Miller's profile photoBarnaby Relph's profile photoPaul Frederick's profile photo
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+Barnaby Relph
I can just spin the tubes if there is any wear. Plus I have more of these tubes. So I am not too concerned about wear. There are mechanisms for making adjustments. But I'd rather keep the build simple. If I oversize the holes there will be enough slop to adjust things anyways.
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Delaware
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I just had a sandwich earlier on some of their bread. I consider it second to none. Makes the best French Toast too!
Public - 2 years ago
reviewed 2 years ago
I ate their pizza once. Afterwards I thought I should have gotten it with the antacid topping. The sauce was raw, you have to cook that stuff before you put it on the pie! I've tried a bunch of pizza in Delaware, now I know better, so if I want good pizza I go to New Jersey.
Food: Poor - FairDecor: Very GoodService: Good
Public - 4 years ago
reviewed 4 years ago
2 reviews
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