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Java - everyone loves it and it works well everywhere. Maybe.
Re: Mcwire Cartisian can it use arduino based electronics? - 16 years ago
Absolutely. The geometry of your Cartesian robot really doesn't make any difference. You may have to flip the wiring of a stepper around to drive it the other way but that is about it, at most. Dementedby Demented Chihuahua - Controllers
Re: mcwire cartbot....drilling holes - 16 years ago
Made one, had the same problem. In the end I just marked approaximate spots, peened them, and then drilled the bastards straight through from one side. Got longer bolts and bolted them to my board. Same for the rails. On the rails I leveled them out using shims and such between the many washers I used. Didn't take much, couple slips of paper and it was fine. Not as critical as you might thing inby Demented Chihuahua - Reprappers
Re: Windows Installer - 16 years ago
kk, thanks. Am looking forward to this...would have been really nice if they kept things backward compatible for a bit longer...some of us still *use* the old electronics! Dementedby Demented Chihuahua - RepRap Host
Re: What Material Do You Use? - 16 years ago
Okay, the closed loop control thing is hard, apparently... Why? Closed loop servo control is how most of the CNC machines I've ever seen have worked. I hear the drivers are harder to design--a one time process, or at least a limited number of times process--but are they more expensive? Dementedby Demented Chihuahua - Plastic Extruder Working Group
Re: What Material Do You Use? - 16 years ago
Can't we just use closed loop control so that we have feedback about where we are to compensate for less than perfect parts? Dementedby Demented Chihuahua - Plastic Extruder Working Group
Re: What Material Do You Use? - 16 years ago
Note, however, that the extruder can only use 3mm filament. That polymorph was to be used to make special things for your Darwin machine by hand with the aid of some molds. Don't really think that is being used much now. Dementedby Demented Chihuahua - Plastic Extruder Working Group
Re: What Material Do You Use? - 16 years ago
Oh, polymorph! Duh! You were most definitely correct. Dementedby Demented Chihuahua - Plastic Extruder Working Group
Re: RepRap near future - 16 years ago
Sounds good to me. I can help out with polishing up the Arduino electronics pages as I have experience with that. Hopefully it starts looking coherent and we can give people links to it when they get stuck on the other one. Dementedby Demented Chihuahua - General
Re: Engineering drawings of RepRap parts - 16 years ago
James, the cartesian bot isn't the hard part by any means. You can throw together a McWire bot in a day with only a hacksaw and a cordless drill. The hard part is the part you bought--the extruder. He can't buy one of those. He has to make it. By the way, your machine looks great! Look forward to seeing your first prints. Dementedby Demented Chihuahua - Mechanics
Re: RepRap near future - 16 years ago
@Leav Well...do you have access to the wiki and such to make the changes? Cause I don't. That's what I mean. Adrian says he wants it in the Wiki. Being the beneficent dictator for life (to steal a phrase from Python), that is about it for that. Unless of course you want to host it somewhere else...don't know about that either. Don't want to split the project into documentation and other stuff.by Demented Chihuahua - General
Re: RepRap near future - 16 years ago
sure sure. Surface mount would be okay, I guess. Since that seems to be a big intimidation point for new people coming on. Also, after a while electronics improvements will slow down and stabilize... Dementedby Demented Chihuahua - General
Re: RepRap near future - 16 years ago
Sort of agree with Leav on this but I don't see as there is much else to do. As to Assembled Darwin boards...That would be awesome if the price were reasonable. What are they talking? Dementedby Demented Chihuahua - General
Re: Engineering drawings of RepRap parts - 16 years ago
You have everything you need to (painfully) make a reprap from raw material. Mostly I'd suggest you use aluminum for the extruder as I've had good luck with that. Plastic works fine for the body but I haven't ever gotten it to mill as nicely as aluminum or steel. I'd suggest getting the extruder done first and then see about one of the RepStrap cartesian bots. Could be you can put something fairby Demented Chihuahua - Mechanics
Re: RepRap near future - 16 years ago
I'm all good on these ideas including letting the user pick which OS to use from a list of three. That is a choice the masses are qualified to make ("which OS do I have?...this one...click!) but the software loading needs to be much streamlined. Can we do an installer and just bundle the stuff together in a nice big tarball and just worry about dependencies ourselves instead of making them do it?by Demented Chihuahua - General
Re: What Material Do You Use? - 16 years ago
I'm very interested in the EDM thing. Gonna be posting on that soon or is this post-Tommelies 3.0? Dementedby Demented Chihuahua - Plastic Extruder Working Group
Re: Engineering drawings of RepRap parts - 16 years ago
That's an interesting switch around from what most of us are used to, Sergii. Good luck with that. Dementedby Demented Chihuahua - Mechanics
Re: What Material Do You Use? - 16 years ago
I print ABS and HDPE. I don't mill anything as any respectable 'strap doesn't mill...hehe. ;-) Dementedby Demented Chihuahua - Plastic Extruder Working Group
Re: Engineering drawings of RepRap parts - 16 years ago
Not nice, Forest... ;-) I think I can help you out with part of that...I posted the millable extruder pieces here There are no guanrantees as to accuracy of my drawings so take what you can get. They have been milled--mostly as they are--and work so you should be okay as long as you proceed carefully. Dementedby Demented Chihuahua - Mechanics
Re: RepRap near future - 16 years ago
@Forest I'm what you might call "Straight Edge" without the religious connotations that some have attributed to that...so I'm not smoking anything but you can certainly have a big hit of what I'm on! ;-) @All What I'm talking about is not so much an over-arching goal for all repraps everywhere but for Adrian's RepRaps here. A standard release that gives the newbies clear direct as Forest was tby Demented Chihuahua - General
Re: RepRap near future - 16 years ago
No offense to anyone... The suggested build guide you posted, Steve, suffers from the same problem as the front page of RepRap...namely, you branch off into oblivion...which reprap do I want to make? Pic or Arduino? What bot type? Laser cut or McWire or Darwin? The newbie doesn't have the information to make these decisions and there are so many of them it is staggering. I think we need a standby Demented Chihuahua - General
Re: I need help with a custom ball bearing joint - 16 years ago
Really?! That's pretty sweet. I'll keep that in mind. Thanks, Forest. Dementedby Demented Chihuahua - Mechanics
Re: Mimimum System Requirements? - 16 years ago
Well that's good to note, Wade! I was looking into getting an Eeepc and was wondering if I could run the necessary software on it for my RepRap. Since Blender will run on it, I have no problems! Killer. Dementedby Demented Chihuahua - RepRap Host
Re: Another first drawing, and another pen holder - 16 years ago
Ah, that's a nice idea. As long as the part size was under the offset distance of the two extruders you could do it. Nice way to speed things up. Course, your extruders would have to extrude at exactly the same rate too...feh. Dementedby Demented Chihuahua - Reprappers
Re: RepRap near future - 16 years ago
I think I see what Adrian had intended for the Wiki...Seems to be a bunch of case studies of successful builds so that people can learn by example and then try on their own. Am I right? I guess that is a sort of good stop-gap measure but I still stand by what I wrote before, I stable release is needed and the documentation needs revision. Dementedby Demented Chihuahua - General
Re: I need help with a custom ball bearing joint - 16 years ago
Or cushion the two pieces of wood with PTFE from McMaster. Teflon gives a good glide against itself, isn't that expensive, and yet isn't completely slick. You could set it up so that you have wood/PTFE/PTFE/wood with a bolt as Leav suggested through the whole bunch. The PTFE would be attached to the wood but not to each other. That, I think, should work wonderfully. Dementedby Demented Chihuahua - Mechanics
Re: Software Errors (With Debugger set to true) - 16 years ago
Do you not have your boards plugged into your arduino or maybe plugged in incorrectly? Specifically the PWM Driver board and the DC Motor Driver boards. Other than that I don't know. Dementedby Demented Chihuahua - RepRap Host
Re: Mimimum System Requirements? - 16 years ago
Is Zach's software better in terms of performance than the RepRap Host? Cause, as Sid pointed out, we could use older versions of software for our CAD work. Dementedby Demented Chihuahua - RepRap Host
Re: Mimimum System Requirements? - 16 years ago
@Ru The reprap is for making things...the minimum system to "print" something is much less than the minimum system to "make things." Yes it can replicate on much less than a system capable of CAD work but that isn't really it's whole purpose in life. Pretty much everyone who wants to build a reprap as far as I know wants to make their own stuff too and that means CAD work. Seems to be necessaryby Demented Chihuahua - RepRap Host
Re: RepRap near future - 16 years ago
@Edtharan I hadn't thought of the persons with disabilities angle on this yet. There is a HUGE market--I use the word "market" loosely without the specific connotation for money making ability--for exactely the kind of custom parts you talked about. That's a great use for this machine. @Leav I think you've been here awhile so you have probably seen the many other threads relating to exactly whby Demented Chihuahua - General
Re: Mimimum System Requirements? - 16 years ago
Ru, what about for designing parts? Yes, printing a set of darwin parts should be pretty low processor impact but that isn't what most people want to do with the machine...or rather, isn't the only thing they want to do. Dementedby Demented Chihuahua - RepRap Host