Discussions on suppliers, meetups, and how to keep Keas from eating your extruder heads. http://dev.forums.reprap.org/list.php?41 Sat, 21 Nov 2009 04:45:03 -0800 Phorum 5.2.11 http://dev.forums.reprap.org/read.php?41,29776,29776#msg-29776 http://dev.forums.reprap.org/read.php?41,29776,29776#msg-29776
If anybody's interested, this hardware base is pretty versatile and without many of the limitations of the current reprap generation equipment.

I'm not doing any work to perfect the mechanics at this stage, my current focus is software.

Graham.]]> grael New Zealand RepRap User Group Mon, 16 Nov 2009 23:02:52 -0800 http://dev.forums.reprap.org/read.php?41,27033,27033#msg-27033 http://dev.forums.reprap.org/read.php?41,27033,27033#msg-27033 Just got to send out the drawings to another place for another set of quotes.

After I got the quote from Swages, the quotes for the nozzles were probably so very high because the design I have, called for having text cut into the nozzle for easy identification of nozzle size, the quote request to Redwoods has the text removed.

I'm getting nozzles made with hole sizes, 0.5, 0.3 and 0.2mm.

Redwoods nearly had a fit when they saw that 0.2, but they reckon they could do it.
Will be hilarious to see a business' reaction when we finally ask them to drill a 0.1mm hole when a future RepRap design calls for it.

If, IF, they quotes are still high, i'll specify the use of a dome nut instead, that should, in theory bring the cost down.

I'll be getting 5 made, most of which i'll be donating to Vik, as he and Tim from MindKits want to try and setup a set of RepRap kits here in NZ, and these will be samples, when they do want to go for volume, they'll have all the info they need.

The biggest difference between what I have done to what is specified in the dxf drawings on the repository, is that the PTFE barrier will have flats machined into them to enable the tightening of the heater barrel to the thermal barrier and the nozzle. The flats also serve another purpose, that is all the wires that lead to the barrel can be cable tied to it, to keep everything tidy.
The barrel now has a specified chamfer angle on the edges of the heater barrel, to reduce the space between the barrel and the bottom of the thermal barrier and nozzle.
The whole assembly will also include an M6 flat washer, the reason for this is to enable the removal of the nozzle so that a smaller or larger or even a different nozzle size can be easily switched without needing a whole new extruder assembly.

As always the drawings will be made available to everyone. I've spent considerable amount of time over the last 2-3 weeks writing up drawings for the extruder bits and bits for my z axis, and one thing you'll notice straight off is the large amount of declared dimensions, this is critical to pass any design off to a machining company to reduce any chance of errors, which reminds me, i've got to specify tolerances on the drawings.


Sorry for the huge long post, just a lot has happened in the last week or two.]]> Grogyan New Zealand RepRap User Group Mon, 05 Oct 2009 21:10:23 -0700 http://dev.forums.reprap.org/read.php?41,25322,25322#msg-25322 http://dev.forums.reprap.org/read.php?41,25322,25322#msg-25322
I did find a pot of fire cement, available from Mitre10 Mega, though I have easy access to kapton tape at work.

What I am having trouble in finding is,
8mm dia solid rod
Various screws and bolts not usually sold by hardware stores like M5 x 50 bolts

Where would be a good place to go to get these in Auckland?]]> Grogyan New Zealand RepRap User Group Tue, 06 Oct 2009 21:47:02 -0700 http://dev.forums.reprap.org/read.php?41,25240,25240#msg-25240 http://dev.forums.reprap.org/read.php?41,25240,25240#msg-25240
Just wondering if anyone else would want to get a set of these parts, then we can determine if its viable enough to get a whole bunch of them made to reduce costs per person for these bits. Assuming of course that you don't have access to a mill/late and the raw supplies readily.]]> Grogyan New Zealand RepRap User Group Tue, 21 Jul 2009 22:18:01 -0700 http://dev.forums.reprap.org/read.php?41,25060,25060#msg-25060 http://dev.forums.reprap.org/read.php?41,25060,25060#msg-25060
I'm interested in building a darwin but would like to know a few thing before i start
1. how much does to cost altogether ?
2. am i able to get the mechanical darwin made parts form someone in NZ.I'm in Auckland
3.how long till the next gen reprap in ready . should i just wait?
4. where can i get the raw materials form? and their price?
5. what version of electronics should i use?

Thats it for now but I'm sure i will think of some more

Thanks
Conroy]]> Conroy New Zealand RepRap User Group Thu, 23 Jul 2009 02:40:12 -0700 http://dev.forums.reprap.org/read.php?41,24280,24280#msg-24280 http://dev.forums.reprap.org/read.php?41,24280,24280#msg-24280
Standard rules apply, so you have to pinkie promise to make two sets and pass them on to other nascent reprappers. You'll want to make a set of spare parts and will probably be building the next version as well - so it's not too hard to end up with spare kit to give away. This is why the components are a bit of a ragtag assortment :)

You'll need to get the motors, arduino/sanguino, bolts, wood, rod and so forth yourself I'm afraid. Can supply free advice, money-back guarantee :)

Any resident Kiwis up for it?

Vik :v)]]> VikOlliver New Zealand RepRap User Group Fri, 24 Jul 2009 16:37:08 -0700 http://dev.forums.reprap.org/read.php?41,20470,20470#msg-20470 http://dev.forums.reprap.org/read.php?41,20470,20470#msg-20470
Anyone been able to source CAPA in New Zealand?

I have contacted CARR (as indicated elsewhere in the forums) but they can not get it.]]> Ross New Zealand RepRap User Group Tue, 23 Jun 2009 03:03:16 -0700 http://dev.forums.reprap.org/read.php?41,19910,19910#msg-19910 http://dev.forums.reprap.org/read.php?41,19910,19910#msg-19910
If someone does have one, how much did it cost? Prices I see mentioned are around US$400 so I would guess given this is isolated NZ and how shit the exchange rate is now it would be something like NZ$800?

Cheers]]> Nil Einne New Zealand RepRap User Group Mon, 16 Nov 2009 18:28:45 -0800 http://dev.forums.reprap.org/read.php?41,13347,13347#msg-13347 http://dev.forums.reprap.org/read.php?41,13347,13347#msg-13347
I'm based in Dunedin, and quite interested in this whole project and keen to get involved.

What's the current state of the Reprap development in Dunedin?
Who's involved?
What needs to be done to move it through to completion?]]> Psopho New Zealand RepRap User Group Wed, 18 Jun 2008 01:12:43 -0700 http://dev.forums.reprap.org/read.php?41,10743,10743#msg-10743 http://dev.forums.reprap.org/read.php?41,10743,10743#msg-10743
I was hoping I could pull more people from Dunedin into Reprap but its taking longer than I thought to get my reprap running so I can give them a reprap and get some real momentum going.

Oh, well. It will happen.]]> reece.arnott New Zealand RepRap User Group Fri, 04 Apr 2008 16:04:44 -0700 http://dev.forums.reprap.org/read.php?41,6213,6213#msg-6213 http://dev.forums.reprap.org/read.php?41,6213,6213#msg-6213

Thanks for this Reece

I will ask Gary Gibson our Production Coordinator to take a look and contact you, ]]> reece.arnott New Zealand RepRap User Group Wed, 14 Nov 2007 15:39:50 -0800 http://dev.forums.reprap.org/read.php?41,6069,6069#msg-6069 http://dev.forums.reprap.org/read.php?41,6069,6069#msg-6069
Actually, I need a post in the forum to add it to my rss feeds, so here goes.]]> reece.arnott New Zealand RepRap User Group Thu, 08 Nov 2007 16:25:49 -0800 http://dev.forums.reprap.org/read.php?41,6066,6066#msg-6066 http://dev.forums.reprap.org/read.php?41,6066,6066#msg-6066
Are there any others?

I'm hoping to have my machine as a 2 extruder fully fledged Darwin by the end of Feb next year.

If any of you got the Star in your mailbox this week you will have noticed on the front page a picture of Alistair Regan from the Otago Polytechnic with a 3D printer in the background.

I've sent him a quick email to see if he's interested in pointing his students towards Reprap or helping us out. Fingers crossed.]]> reece.arnott New Zealand RepRap User Group Tue, 01 Apr 2008 22:50:13 -0700