Its alive!

Hello folks!

As I mentioned previously, I had an element to fix on the circuit board. Well, I replaced it, checked the thing 2 more times, plugged the board to the power, and... IT WORKS! :D
I measured all possible voltages in the slots, etc, all is at the desired levels!
Now, its "just" to make the rest of the printer, put it ll together and- we start printing!

Other news, also yesterday I attended a very nice seminar/demonstration of 3D printing at the local science center. For the first time I could see live the process of printing. The guys had a Makerbot Replicator www.makerbot.com, and made in Poland CB-printer cb-printer.com (solid metal construction based on Prusa Mendels).

And the last thing- I ordered a TTL to USB converter from US. Total cost with transport was around 15euro. I add that to the post with the summry.

See you next time!

Humble me

Greetings wondering souls,

first things first,
I have to admit I was wrong, and the power source is working fine. After going to the shop, the guys easily demonstrated how little I know about PC elements ;)

Knowing that, today after work I tried to plug in the board.

First, I plugged the proper jumper, then connected switched off power supply, turned the power on and... (!) There are several indicators described in the instruction that the board is OK.
First one is "there is no smoke".
Well, we did not pass that one :D
The L1 part that is 100uH coil burned.
Funny enough the second indicator was fulfilled ("the yellow diode is on"). At least for the moment before I turned the power off ;)

Lesson learned:
Before putting your home made circuit under voltage, check each and every connection. I found one not soldered pin and one solder bridge what should not be there (sic!). Hope that were the only things wrong.

Tomorrow I will purchase a replacement coil (or two for safety measure), put it in place of the broken one and cross my fingers that no other elements were effected.
And then I will check the connections for the fifth time.
And only then will I plug the power on ;)

Hold your thumbs!

Have to speed things up...

Hello again!

Like the last time, a lot of time passed since previous post... What can I do? How can I explain? And most important- should I care? ;)

Unfortunately there are distractions that appear from the blue, strike you like a lightning and then eat up the remaining small pieces of evenings that you have left for yourself- thank you X-Com and Civilisation :P Worst- there are more to come! Fear the almighty StarCraft Expansion! 

Fortunately my poor laptop can not handle top-notch graphics, and I drop most other "hot" titles (will play Diablo III when I get a machine that does not work with a game only on low-low-low settings...).

To calm you down, I care at least to the point that I told several people that the printer will be working by the end of this year- that includes you. I considered it a reasonable time restriction and want to stick with it. And most importantly- I am a man of my word- its also a safety feature against "The Distractors".

Enough of mumbling- to the pictures and joyful progress!

I finished the electronic board to the point where I have to check the voltages before inserting semiconductors and chipset. First "general soldering overview", then "the top of the board", and "my silly soldering skills" ;) Enjoy!

Since I am a total soldering noob, I found the following quite funny and a bit disturbing. From the last soldering session I observed that something happened to the tip of the iron. In the beginning it was like a tip of a normal screwdriver. After all this soldering I have done- take a look:

I guess that the solder itself, and the cover of a PCB board have some acids etc, that are supposed to "melt" the metals in order to make better bonds. I guess they also work on the iron ;) And other thing- look how much solder I used! :D It was full when I started! I never used a full solder pack. Awesome! (yes, I enjoy strange kind of things) 

Unfortunately I could not check if my work is good or bad. The power supply I bought at the local "electronics repair point" does not work. Or I am being stupid. But since its humans nature to presume that our brain is superior to others, I will have to go to the shop and make a racket (for those offended- I am joking with "the brain" stuff- jeez, relax a bit, read some comics, watch cartoons- it helps to understand this kind of humour :P ).

Finishing, I have to boast a bit and say that my lovely wife got me a great present for "boys day"- a brand new Proxxon power tool for precise drilling, cutting, grinding, polishing- all this cool and useful stuff :D Love you Honey!

Thats it for this post. Since I managed to gather lots of tools, I guess the next one will have to do something with the printer itself. Be patient and wait!

Signing off for now...

I am still here- progress report ;)

Hello Folks!

Its been 3 weeks and a day since my last post. What can I say? "Real" jobs require more attention than a hobby.

But there was some progress and I want to share it with you!

First- the main frame is ready!
Thanks to Giuliano from Energy Automation who allowed me to use their workshop (flex cutter),  I was able to cut the threaded rods in a more humane and modern way.
A bit later I also discovered my lack of experience.
In order to hold the threaded rods in place while cutting, I used a vise. Everything would be cool should I protected the threads while squeezing them. I did not exaggerate with the force, but it was enough to damage the threads... During the construction I had to use a lot (I mean a LOT) of force to put the screws on those rods. Fortunately the 2 Z-axis rods were not damaged at all, and I will be able to use them.
TIP: while holding a threaded rod with a vise make sure to put something soft in between. A piece of cloth will do. This will prevent the rod from moving and will not damage the threads.

Enough of that, I am sure you are curious of the effects :) Here is the frame:

Forgive the mess on the table. We are working, aren't we? :)

Right now the frame is waiting till I make the flats on the shafts of the motors.

It is also not tight screwed. It will be done after I cut the bottom moving board.

The frame was done some time ago. In the meantime (during last week), I managed to find 2 hours to relax and solder a little bit.

First I soldered the multi-pins to Pololu motor drivers.

TIP: when you enter the pins into the holes, they move a lot back and forth. To prevent them from doing so, you can use the slots to hold them in place. Pic below show how I did it.

And here are the 4 Pololu drivers in full glory :)

Next, I moved to mount the main board. Some may think- "this is sooo difficult", "wow, you need to be very skilled to do that", "its requires tremendous knowledge". That is not true. You just need a bit manual skills and not to do drugs that make your hands shiver too much (other drugs also suck- don't do drugs ;) ). Youtube have tons of "how to solders", for beginners, and pros. Of course some practice earlier would not hurt (lucky me, but should have done more soldering in the past). Finally, the manual at RepRap.org prepared by Traumflug is just awesome.

The work itself for me is great. You have a purpose, calmly focus on one, rather simple job, clear your mind and enjoy yourself :) I love soldering! Here is the result of the first "session":

Some time later I found time for a second "date with a soldering iron" :) Overall I think I did a good job. The only thing I screwed a little bit up, was the 4-pin slot on the very right. It was leaning a bit (did not put it perfectly straight). While I was trying to fix it, I slid the two right pins inside, instead of bending the left ones. It was just an aesthetic thing, so I left it like this (its even hard to see it anyway).

I also put some super-glue in one of the holes in the left 4-pin slot. That was stupid. Fortunately I cleaned it fine with some metal piece and deoxidizer.

Here is the result if second session:

That is it for now.
Again I have a lot of stuff to do at work, also have packed two weekends, so can not tell when I will be able to put some content. Hope quite soon. Till next time! :)

Pics, wrap and progress

Hello Internet :)

Its been a while... again... Well, believe it or not, I have so called "real life", and it has taken a lot of my time lately.

It seems I finally got (almost) all the parts needed for the printer.
At the list below, you will find prices not mentioned in previous posts (for electronics, motor controllers, power source, etc). All prices refer to the period around mid 2012.
Here are some pics, and below is a list, with cost of all the stuff.

1. Gen.7 v1.4.1 electronics.	2. Gen.7 v1.4.1 electronics not soldered.
3. Screws, washers, bearings. etc.	4. Timing belts and "hot end".
5. 420W computer power source.	6. 5x bipolar stepper motors
7. 4x Polulu stepper motor controllers.	8. 3x Gen.7 v1.3.1 optical endstops.
9. 0.5 kg ABS plastic.	10. Printing bed and parts.
11. Metal rods.	12. Shoe rack ;)

- What the hell does this shoe rack do there?
Well, I needed to buy 21.5 x 21.5cm wood board for the printing bed. Unfortunately the smallest boards in the store were 50x100cm. In that case, I bought one board, cut it and made a shoe rack for my wife (and me). Had to show off a bit, this blog is here also for that reason :P

Now the gathered prices of all this nice stuff.

• Metal stuff (local store):
• 90 M8 nuts,
• 100 M8 washers,
• 6 M8x30 washers (bigger),
• 2 M4x20 bolts
• 2 M4 nuts,
• 2 M4 washers,
• 22 M3x10 bolts,
• 16 M3x25 bolts,
• 4 M3x40 bolts,
• ~70 M3 washers,
• 40 M3 nuts;
• Total cost: ~10eu;
• Metal rods (local stores):
• 6x M8x1m threaded rods;
• 3x 8mm x1m smooth rods (quite hard to get);
• Total cost: ~35eu;
• Printed plastic parts from Allegro (polish eBay):
• Cost with shipment from Poland: ~50eu;
• 5 bipolar motors (Allegro):
• Cost with shipment from Poland: ~83eu;
• 2 Timing belts (Allegro):
• Cost with shipment from Poland: ~12eu;
• Hotend (Allegro):
• The hotend;
• Heating resistor;
• Thermocouple;
• Cost with shipment from Poland: ~55eu;
• Bearings (Allegro):
• 14x LM08UU;
• 4x standard 608 2RS;
• Cost with shipment from Poland: ~28eu;
• Filament (eBay):
• 0.5kg 3mm filament;
• Cost with shipment from Holland: ~18eu;
• Electronics (from awesome Mr Marcus Hitter http://www.jump-ing.de/):
• Gen.7 v-1.4.1 PCB board;
• Electronic elements for the board;
• 3x Gen.7 v1.3.1 endstop PCB boards;
• Electronic elements for endstops;
• Cost with shipment from Germany: ~68eu;
• Stepper motor controllers (Allegro):
• 4x Polulu controllers (12eu each)
• Total cost with shipment from Poland: ~55eu;
• Used 420W computer power supply (local shop):
• Cost: 15eu;
• Cables to connect all this stuff (not bought yet):
• Estimated cost: ~20eu;
• TTL to USB converter
• 15 eu;
• TOTAL COST: ~465eu

Since I am away from home (and my dads garage), in addition to all the above parts, I needed to buy some (all) tools, for which I spent around 50eu.

And last but not least, I will have to get some old computer (PentuimIII 512MB?) to control the printing process. I hope some friend will give me one for a bottle of wine ;)

Finally a note regarding progress:

As it can be seen on picture 1 and 8, I started soldering. The parts arrived not soldered, as in picture 2.
I wanted to post a movie showing my work, but stupid Ubuntu recording program guvcview screwed something with the codecs... Will figure it out and post some movie next time ;)

Thats it for today! :)
Have a nice weekend!

Parts, bars and a contest

Hello!

Its been a while since the last post (again), but I have a good explanation: I was buying stuff and waiting for it to arrive.

And finally I am at the point, when I can start building something. That is because the bearings arrived. Unfortunately I was a lazy potato, and the rods are not all cut yet. Its much harder to do than I expected... or I am being a potato...

I bought 14 linear bearings LM08UU and 4 standard 608 2RS (for rollerskates :) ).

The costs were:

LM08UU: 5zł ~ 1.20eu  x14 = 70zł ~ 17eu

608 2RS: 1zł ~ 0.20eu  x4 = 4zł ~ 1eu

Shipping from Poland: 43zł ~ 10eu

TOTAL: 117zł ~ 28eu

At the moment I am waiting for the electronic parts: the GEN7-1.4.1 electronics for reprap designed by Markus Hitter http://www.jump-ing.de/, and for stepper motor controllers. More about that, after the parts arrive.

Oh, and almost forgot- I made my first transaction on ebay! I ordered the first 0.5kg of ABS plastic- we have to print with something. And yup, there are people like this- till now I was buying on www.allegro.pl, which is like a polish ebay. You may also notice that most of the parts arrive from Poland. There are two main reasons for that:

1) I am Polish :P

2) even after adding the cost of transportation- it pays off. Here in Italy at a regular store I would pay ~8eu for one LM08UU bearing- no thanks.

I can not say that all the stuff is cheaper in Poland- for exaple plastic is not- but its worth a while to look for offers from other counties than US, UK, Germany etc (no offence, just expensive).

And at last, I started to "do some work". Yesterday I cut the smooth rods.

- Pics or didn't happen! 

Well, here they are. The quality is not perfect- cell phone- but can see what's been done.

 
 

I will try to start making pics with my webcam. We will see how it goes.

Now a contest for the lost souls who come to this blog. Wins the first proper answer to these questions:
1) where am I buliding the RepRap (which part of the house)?
2) What does my wife think about that ;) ?
The winner will get a post card from Trieste in Italy (unless will be afraid to give her/his address to a stranger like me- then we can arrange a virtual post card ;) ). The contest is valid till the end of 2012- dont want to get sued in 2020 after I forget that this blog exist by someone who gets here by accident :P

Thats it for now- good night!

Almost ready for construction

Greetings again,

today's note updates the "gathered parts list".
I received:

• 5 bipolar motors: 337.50zł / ~83.- euro*;
• 2 T5 timing belts: 48.-zł / ~12.-euro*;
• hotend MKIVb** 0.35mm/3mm: 224.-zł / 55.-euro*.

* - the prices include shipment from Poland to Italy.

**- the hotend came together with heating resistor and thermocouple.

I already ordered the set of bearings, which should arrive early next week. After that- we can finally start building this printer!

In the meantime I try to order the electronics. More notes on that later.

I know I promised some pics- will to do that after the bearings arrive. That way we will have the "full kit" together.