Lesson learned: Don't buy the giant bottle at Costco unless you KNOW you like it...
Printable View
Whores!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!
Is it Ho Back Thursday?!
Miss me? [Shy]
I bet you guys didn't even notice I was gone!
[gohome]
no, it's whore's back thursday
Well, my face is no longer bearded. That disappeared a long time ago actually.
I moved cross county with a 2 week old baby. She did better than we thought thought. Have gotten to play with and be sent to training to learn how to use some super fun toys at work. The department has had a 3D printer for 2yrs and I'm the first one to actually use it beyond pulling it out of the box. What did I print? I spent about 1mo printing (and failing lots) parts to build myself a 3D printer (RepRap). It is finally complete and printing some excellent parts. Yes, I plan to eventually print an AR15 lower receiver with it.
Also, life sucks when you can't go to the shooting range. I miss it dearly and am itching to go shoot stuff! This is partly why I haven't been logging in here, because you guys make me want to go shooting. Started grad school on Monday in addition to work. Have a supermega cold and I was the last in my house to get it, so baby is feeling better, wife is feeling better but I feel like crap. Uh, I think that's about it for now.
Oh yea, and it apparently snows more in NM than it does in VA. Which really baffles me and is kinda disappointing.
http://reprap.org/
You still have to buy all of the electronics, motors and then assemble it all together. But I dare say it was more fun to assemble than building an AR15 from scratch (including upper). With that said, as an engineer I have already found numerous flaws in the design I made and am designing my own printer from scratch now that I know the in's and out's of them. The design I'm making will also be easy to quickly disassemble and move around (such as take on a plane down to Chile with me...).
That's tonight :D
[QUOTE=BuffCyclist;1821959]Well, my face is no longer bearded. That disappeared a long time ago actually.
I moved cross county with a 2 week old baby. She did better than we thought thought. Have gotten to play with and be sent to training to learn how to use some super fun toys at work. The department has had a 3D printer for 2yrs and I'm the first one to actually use it beyond pulling it out of the box. What did I print? I spent about 1mo printing (and failing lots) parts to build myself a 3D printer (RepRap). It is finally complete and printing some excellent parts. Yes, I plan to eventually print an AR15 lower receiver with it.
QUOTE]
Did that too!!
sweet baby jesus. So I could buy a 3d printer for roughly the price of an AR. I like it, and need one
The problem comes when your printer decides you are the problem and sucks you out into space or puts you in a tube and uses you as a battery. (I might have got that from a movie though)
I actually built a CNC wood mill once. (Down in Las Cruces actually) My friend handled all the electronics and computer stuff. I built the table, frame and rail system for it. It's been going strong for many years at his wood shop.
Were the flaws you found in the mechanical side or electronic/comp side?
Entirely mechanical.
For instance, they put the extruder/extruder-motor/extruder-nozzle on the end of essentially a diving board. So it flexes like crazy and precision is affected. They used bronze bushings on steel shafting, which is good when things are cut with a CNC and the holes are truly concentric. But when the bushing holders came out of the printer, it took me 2 days to get them aligned so the mounts (with 2 bushings per side mounted on) to move freely along the shaft (ie fall down a vertical shaft when held at top and let go). The linear guide rails and carriages they used were plastic, so I can't clamp the extruder carriage down enough to ensure it won't move when the x-axis motor belt tugs on it in either direction. The z-axis motor mounts are not gusseted, so they flex under the weight of the motors/shafting. The flexible shaft coupling for the z-axis introduce a spring like effect since the bottom of the leadscrews are not supported. So the distance between the threaded nut and the motor could change depending on how fast the motor changes direction. The glass build plate is overconstrained (by a clamp) that doesn't allow it to expand/contract as it heats/cools. This introduces a rise/fall in the center of the plate when the heater turns on/off to maintain a set temperature (70degC). Uh... I'm sure there are a dozen more but can't think of them at the moment.
Anyho's, did anyone get banned while I was gone?
Heya buffalobo [Wave]
I might be able to check in here every once in a while during work. I really don't have any free time at home anymore, which is when I used to hang out here the most.
Yea, quite a bit of flex on a few key areas. The quick disconnect is basically disconnecting the z-axis uprights from the x and y-axis base. The issue is constraining the z-axis shafts so that they don't change in relation to one another or the bed once reinstalled.
Oh yea, did I mention that I printed my first gun part the other day? I made a couple picatinny rail clips (aka index clips). Best of all, I can customize them with initials across the top. Still working on the design for a knurling that comes out well during printing.
Heya HB [Wave]
Thanks for reelin' me back in, I kept feeling guilty that I replied to your PM then never logged back in. Besides, I missed the randomness!
Hey BC, good to see you pop in.
I wish I had the stuff, time, and motivation to do some of that cool engineering stuff.
But only a temp ban. He's back and he got his new name.
I developed a successful plan to get out of debt. It worked so well for me that I started trying to teach it to friends. Then when I finally looked into Dave Ramsey I saw that my plan was exactly the same as his get out of debt advice.
Kind of like that time I was learning to play guitar in high school and came up with this chord progression that I thought sounded pretty good, only to find out it was the same as Hotel California by The Eagles.
Yeah. It makes perfect sense, but it takes self control and requires a level of maturity that most "adults" these days simply don't have.
I've only listened to a few episodes on the radio, but I downloaded his podcast so I'll have something useful to listen to on my 1.5hr round trip commute every day. Definitely a good guy with good values and it's encouraging to hear that other people's financial situations are much worse than mine, but there is still so much hope! Before I ever heard of him, I developed my own method for paying my bills. I developed a very detailed budget spreadsheet in excel that tracks every penny spent and projects several months into the future, as well as keeping track all the way back to 2010. I also do something similar to his "snowball" to pay off debt: Pay the highest interest loan first, then when that's done, pay more into the next one. Due to changing family circumstances, we are no longer living below our means, and with our move to CA in May, I will barely make enough to pay a mortgage or rent on a place out there... Not very encouraging, but in 5 months, I'll get approximately a $350/mo raise and in 9 months, We'll have some significant loans paid off ($1,200/mo). After that, the only money I will owe is the mortgage (or mortgages, depending on if we rent or buy in CA), so that's good, right? Then hopefully we can build a real savings account and contribute to our retirements.
Hey everyone...
Hot Damn....howdy BC !!! Good to see ya.