wow its Christmas again already, sure dose not take that long, i have been involved in my project for the better part of a year now. i have been watching this project for much longer than that. but i am doing my best to add what ever contributions that i can.
i have learned allot through out this whole process, about electronics, soldering and designing some of the things that i have needed. so over all i am very glad for this experience, and i am planning on doing my best to see it to fruition.
i still have allot to learn so far too though, but i am getting there bit by bit, and i hope i can find a few more small things i need in calgary, or so i hope at the very lease, i am glad i do not need a bunch more things. if i can get 2 more scanners to scavenge for parts i should be able to find what i need.
i have been working on my one frame idea a little i will have more up on thingiverse tomorrow or the day after.
i hope i can find some ribbon cable, it would make running some of the cables i need to make allot less trouble.
i thought it would be handy if i made a break out board for my arduino mega.
i will make the cables i need for it tomorrow, i thought it would be less trouble if i did it this way
that is the extruder mounted onto my printer frame
seeing how i got my hot end all together, and working i was able to test it with repsnapper and tonokip firmware, i was able to test to see if hot end was not only working but able to extrude, and it did. so i am happy.
it heated up good, though i did notice that has it got closer to 200 the slower it got, though it still only took a short time, i think that was normal. but it was good too see that it is all working and reading the temps right.
i do like the setup that maker gear has, but for some reason i am always thinking things are going to be bigger. maybe it is just me but i always find it surprising.
i was hoping that i could find some pid code out there for thermistors, i was thinking about trying to get it to try to turn on a fan if it got too hot. i just need to get better at my coding i think.
woot i got my operators super pack from maker gear today and i was able to get most of it done, i would like to know where i could find more of that black silicone and fiberglass insulation they have in the kit i can think of a few other uses for that stuff if i can find it in larger sizes.
but i will post more when i am not so tired
i am getting the idea to mount a small heat sink to the top of the brass tube, to help keep things a little cooler up there. but i like what i am seeing so far.
today at work i found a 12v dc heated coffee mug, for less than 3 bucks so yay,
so i am thinking i can use it to make a hot bed for printing, it is a thicker nichrome wire, and on the box it says up to 72c at 12v on a car, so i am thinking that on a 12v computer PSU, i think it will get up to about 60c i think, that should be enough to make a hot bed i think.
this is the box from the mug
that is the mug nothing special really.
this was the nichrome wire that was wrapped around the bottom of the
insert of the mug, kinda scary that they had masking tape holding it onto the mug,
say hi to rara, my wifes dog,
she is a very courious dog at times, and likes to play games that involve running away
i am also starting to get more of the plywood up on the walls now too.
i also now have the last of my insulation in the walls now, i just need to put plastic over it, i will do that friday.
so i hope that after xmas i can finish the wood and start working in the shed,
but with all this i am making progress, so i am happy
i think this is a good start there are a few way to make it more printer friendly like adding in some circles or triangle so that there is less mass to print out, i will keep at it here, but i think i can design a working printable frame based on this idea
i was reading on the reprap forums today and i saw a post that mentioned printable rods and then for some reason that got me brain going on one of its tangents, and i ended up designing this today
i think with just these pieces you could make a printable chassis for a repstrap in order for it to work i know i would have to work on my distances in order to get all the pieces to fit right but it was the start of the idea any how i may try to work on it a bit more tonight and this week but i do think it is an idea that could work, i would welcome any help with this idea, i have tried to make it all printable, it is poster here too if you want the file http://www.thingiverse.com/thing:5099
i know that i might have to change it a bit more to make it a little more stiff, but that could also be done after it was build cheaply enough too.
I was able to get a few more things done on the shed today, i was able to build my work/computer desk in it, i plan on putting my repstrap in there when it is all said and done.
the shed is now keeping in its heat allot better now. not nearly so cold in it once i got the heater going, but when i first got into it, it was bloody cold. but now i also have the poly up on one more wall.
there is the desk that i built today, nice and level. and i hope about the right hight.
but this weekend and next week i hope to get a few more things done on my repstrap, i will get the Z axis mounted, i found some wood that will work for me i think. i just need to measure it again. and i will have to make another motor mount too. i am a little worried about how much torque that i am going to need though i think i might need more gearing, or if i should just bite the bullet and order that one geared stepper from makergear. i may just do that, and be done with it.
but i hope my hot end gets here next friday or so. i am looking forward to getting it together and tested.
i have found something that i think should work for my Z axis they are lifts for cutting wood, they had rollers in the top that in time i may have a use for. i will be mounting them a little lower than that but i thought i would give you a idea of how i am going to mount them.
i have them on both sides, i was not sure how stable 1 was going to be
and here we have the plate that i am using for Y axis base, i still do need to get that one worked out still but i think i still have more time for him, i am just happy to be getting closer to my goal.
here is one before i took the roller off and turned the top bracket around. they way they were setup they had an ark to there travel, not just straight up and down. by turning it around the slides are now both on the same side, i am not sure if there was another reason for that just yet, but i thought i would try any how.
there was some play on the stops there so i added a washer i had seems to be working so far, but it did make them a little harder to turn, i hope some grease might help solve that issue.
here is what they looked like after, with the rollers removed and the top bracket turned around.
With all of this i hope that i will have a mostly working Z axis, i still need to figure out how to attach pullies to it but i will try to tackle that one after i get them mounted a little lower on the frame. i am not sure just how accurate they will be but i hope more than enough for me to print the parts i want to make a proper unit. but only time will tell on that front.
i am also thinking i might just try to mount my Y axis right to the bars in there already, seeing how if i get them mounted nice and parallel they would work great and save me allot of trouble. though they are a bit confined for space.
on another front i am getting to be more at ease with using S4A from my last post. i like it so far, i am trying to figure out how to get it to read a thermistor still but i have not given up on that one just yet. i find it to work well for me, but i am also finding it constraining still. i hope they can find i way to support more code soon, and so that i can use more of my PWM pins it is very limiting in that regard still.
that and i am hoping they support more arduinos here soon i would like to see what i could do with my mega,