[hackpgh-discuss] Re: opensource hardware meeting next week
- From: Gabe Cottrell <bmrf@xxxxxxxxxxx>
- To: hackpgh-discuss@xxxxxxxxxxxxx
- Date: Sun, 10 Jun 2012 20:40:54 -0400
One of the guys I worked with at RMU Charles Mura will bring his MendalMax
to the shop on tuesday for openhardware. To give us a idea.
-Gabe
On Sun, Jun 10, 2012 at 6:46 PM, Jeremy Herrman <jeremy@xxxxxxxxxxxx> wrote:
> 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
>>
>>
>
> --
> 717-497-9253
> @jherrm <http://twitter.com/jherrm>
> linkedin.com/in/jherrm
> facebook.com/herrman
>
>
>
>
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