[hackpgh-discuss] Re: opensource hardware meeting next week
- From: Jeremy Herrman <jeremy@xxxxxxxxxxxx>
- To: "hackpgh-discuss@xxxxxxxxxxxxx" <hackpgh-discuss@xxxxxxxxxxxxx>
- Date: Sun, 10 Jun 2012 18:46:08 -0400
I'm all for building the MendelMax. Extruded aluminum beams are great, and
if the printed joints prove to be a problem then we can either print new
ones when they start to wear down, or make them out of some other material
and then tell the community about it.
- Jeremy
On Sunday, June 10, 2012, j. eric townsend wrote:
> How did he print the joints? We had a lot of 3d printer access on campus
> and it'd be a big help if he printed there.
>
> The drawback to all of the metal strut + printed plastic joints (in my
> opinion, mind you) is alignment and stability. I haven't seen many (5?)
> but almost all of them were wobbly due to wear in the joints or poorly
> printed joints.
>
> If I'm going to drag it around, I want it to be rugged, and I realize that
> isn't high on the requirements lists for many of these.
>
> It's tempting to just cut all the joints out of metal or acrylic. That,
> or cut one out of wood, which was good enough for Cupcake CNC plans.
>
>
>
> On 6/10/12 13:34, Gabe Cottrell wrote:
>
>> One of my coworkers from RMU Charles Mura, just built a MendelMax, and
>> its print quality is great and it is rigid as hell, I think he's
>> planning on bringing it to mini-makerfair.
>> I'll see if he can bring it by the shop for a demo.
>>
>> -Gabe
>>
>> On Sun, Jun 10, 2012 at 12:54 PM, Matt Stultz <matt@xxxxxxxxxxxxxxxxxx
>> <mailto:matt@xxxxxxxxxxxxxxxxxx>> wrote:
>>
>> Okay I will keep my ranting to a minimum but there are a few points
>> I can't help but make:
>>
>> 1 Non one is working on PLA extruders for MakerBot's anymore because
>> the extruders MakerBot makes work awesome for PLA.
>>
>> 2 Comparing the pint quality of your first generation Cupcake to
>> MakerGear's finely tuned sales tool demo unit is pretty absurd.
>>
>> 3 Many in the reprap comunity hate MakerGear because he steals their
>> work and calls it his own (see the "MakerGear Prusa"
>>
>> http://www.makergear.com/**products/3d-printers<http://www.makergear.com/products/3d-printers>
>> )
>>
>> Okay Rant over.
>>
>> Now from the perspective of owning 2 MakerBot's (a Cupcake and a
>> Replicator) and being at the point of about to build my 3rd 3D
>> printer
>> (http://reprap.org/wiki/**Tantillus<http://reprap.org/wiki/Tantillus>
>> ).
>>
>> Build a MendelMax!
>> http://www.thingiverse.com/**thing:20355<http://www.thingiverse.com/thing:20355>
>>
>> It's a little more expensive than a Prusa but has the same print
>> capabilities and is easier to build and far more rigid than a Prusa.
>> You can print in both ABS and PLA with this bot (there are upsides
>> and downsides to both). Most importantly it's a "kit" that members
>> of the shop can put together and learn how these systems work which
>> will make it much easier when you have to do repairs on it. That is
>> important because it's not an if it's a when.
>>
>> I will probably end up building one of these myself at some point if
>> for no other reason than the large build size.
>>
>> If you don't want to build a Max then just build a standard Prusa.
>> It has the greatest level of community support and upgrade parts for
>> it.
>>
>> If you want to build a Max or a Prusa (or something else reasonable)
>> for HackPGH let me know and I will print the parts needed for it on
>> my Replicator and send them to the shop.
>>
>> Thanks,
>> Matt
>>
>> On Sat, Jun 9, 2012 at 2:52 PM, j. eric townsend <jet@xxxxxxxxxxxx
>> <mailto:jet@xxxxxxxxxxxx>> wrote:
>>
>> Reprap, MakerBot, and most of the open printers can do ABS or
>> PLA. You just have to tweak some hardware, the temperature
>> settings in the controller, and change the g-code generation
>> scripts.
>>
>> Early on there were a lot of people making alternate PLA heads
>> for the MakerBot but they are starting to work more on Reprap
>> these days.
>>
>> There are some other commercial-ish 3d printers out there that
>> are cheap and available as kits, parts-lists, etc. The M Series
>> printers from MakerGear print PLA really well, last year I was
>> next to one at the maker faire and his PLA looked better than my
>> Cupcake's ABS. He was making jewelry he could give to kids with
>> no nasty fumes.
>>
>> I'm putting together a spreadsheet now of the basic
>> models/prices for my own reference, will bring that on Tue.
>>
>>
>>
>> On 6/9/12 14:19, The Gentleman Alchemist wrote:
>>
>> I agree with RepRap over in MakerBot in principle and in
>> practicality.
>>
>> If I understand correctly, RepRap would most likely be a ABS
>> plastic
>> printer. What would be our options for a PLA printer?
>>
>> Scott^2
>>
>> On Sat, Jun 9, 2012 at 12:26 PM, j. eric townsend
>> <jet@xxxxxxxxxxxx <mailto:jet@xxxxxxxxxxxx>
>> <mailto:jet@xxxxxxxxxxxx <mailto:jet@xxxxxxxxxxxx>>> wrote:
>>
>> Tuesday, 7:30pm, free, open to the public.
>>
>> Topic: What should be the next 3D printer one of us
>> builds?
>> MakerBot isn't supporting older models with parts
>> online so I'm
>> leaning towards a Reprap, but what sort of PLA printer
>> should we
>> consider for the shop or for a class?
>>
>> --
>> J. Eric Townsend
>> design: www.allartburns.org <http://www.allartburns.org>
>> <http://www.allartburns.org>; hacking:
>> www.flatline.net <http://www.flatline.net>
>> <http://www.flatline.net>; HF: KG6ZVQ
>>
>> PGP: 0xD0D8C2E8 AC9B 0A23 C61A 1B4A 27C5 F799 A681 3C11
>> D0D8 C2E8
>>
>>
>>
>>
>> --
>> J. Eric Townsend
>> design: www.allartburns.org <http://www.allartburns.org>;
>> hacking: www.flatline.net <http://www.flatline.net>; HF: KG6ZVQ
>> PGP: 0xD0D8C2E8 AC9B 0A23 C61A 1B4A 27C5 F799 A681 3C11 D0D8 C2E8
>>
>>
>>
>>
>
> --
> J. Eric Townsend
> design: www.allartburns.org; hacking: www.flatline.net; HF: KG6ZVQ
> PGP: 0xD0D8C2E8 AC9B 0A23 C61A 1B4A 27C5 F799 A681 3C11 D0D8 C2E8
>
>
--
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