Printed DNA30 Bottom Feeder

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Kentastic

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You just got a bad one, I find Alumide the best material for internals, it's the strongest

Well the body and top cap seem fine, even the ring has some flex to it, but the internals rails and such are brittle on mine. No flex at all.

Yeah it's falling apart....

15679050615_2d953227d3_o.jpg
 

gdeal

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Whoa...Bad prints. :( The alumide from Sculpteo is not looking as good as the Shapeway prints. I got a set of caps from them in Alumide. I was not happy with what they delivered...

While the surfaces are flat, the layers are not as thin or as tight. I never had this much layering effect from Shapeway, even with their un-polished version.

udPGcuO.jpg


They state "Our alumide 3D printer, the EOS P395 gives us a layer precision of 150 µm (0.15mm)." With Plastic, they state resolution of 100-150 µm.

Here is an example from Shapeways, different part design, but this is un polished Alumide. Notice the difference of the print resolution at the small screw holes.

XnGKtrl.jpg


I am pulling alumide as an option at Sculpteo. Sorry guys.
 

Aal_

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Yeah I was thinking of trying a black polished Peko print from Sculpteo. The white polished I got from them was great, but now I'm nervous.
No don't get me wrong it is fine. I'm sure it is same quality as white I just wanted the black detail when shapeways started their move that's why I was bummed :)
 

Kentastic

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No don't get me wrong it is fine. I'm sure it is same quality as white I just wanted the black detail when shapeways started their move that's why I was bummed :)

Black detail is a different material than black polished plastic. Sculpteo only has black plastic, Shapeways has black plastic and black detailed. At least that's how I understand it. I ordered a couple of rings and buttons in black detail from Shapeways, but I'm thinking of ordering a black polished plastic Peko from Sculpteo because it's about $18 cheaper than ordering the same thing from Shapeways and I was impressed with Sculpteo's quality on their polish white plastic Peko they sent me.

Gdeal has not enabled the option to buy the Peko body and top cap in Black detail from Shapeways because it will end up being about double the price, and Shapeways already costs more than Sculpteo. I may ask him to give us the option after I see how the buttons and rings come out. It would definitely be an experiment, and may turn out horrible.

later,
Ken
 

tiburonfirst

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Whoa...Bad prints. :( The alumide from Sculpteo is not looking as good as the Shapeway prints. I got a set of caps from them in Alumide. I was not happy with what they delivered...

While the surfaces are flat, the layers are not as thin or as tight. I never had this much layering effect from Shapeway, even with their un-polished version.

udPGcuO.jpg


They state "Our alumide 3D printer, the EOS P395 gives us a layer precision of 150 µm (0.15mm)." With Plastic, they state resolution of 100-150 µm.

Here is an example from Shapeways, different part design, but this is un polished Alumide. Notice the difference of the print resolution at the small screw holes.

XnGKtrl.jpg


I am pulling alumide as an option at Sculpteo. Sorry guys.

i sure hope you will send those pics to sculpteo and inform them of your decision. tell them you'd love to send all of your business to sculpteo but with that print quality you can't do it ;)
 

Kentastic

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Hey folks,

I got in too late for this group buy, but had a very generous person give me some of their extras to build a GDNA, but I still need some parts. If you have any extras of the below list please throw me a PM.

GDNA parts still needed:

(2) Stainless M2 Screws -McMaster
McMaster-Carr

(2) M2 Brass Press Fit Inserts -McMaster
McMaster-Carr

(1) 3 mm Nut for Top Cap -Mouser
R30-1010402 Harwin | Mouser

(1) Battery Contact -Mouser
5230 Keystone Electronics | Mouser

(2) Fuses -Mouser
2920L700SLPR Littelfuse | Mouser

(2) 3/16 Inch Cylinder Magnets -KJ Magnetics
K&J Magnetics - Products

(1) Atty-510 O-ring -Oringstore
2mm X 11.5mm Metric Buna-N 70 O-ring [N2.00X011.5] : The O-Ring Store LLC, We make getting o-rings easy!

(1) 510 Oring Insulator -Oringstore
1.5mm X 3.5mm Metric Buna-N 70 O-ring [N1.50X003.5] : The O-Ring Store LLC, We make getting o-rings easy!

(2) brass washers -Fastenal
#6 Brass Large OD Flat Washer | Fastenal

I've been trying to piece some of these orders together, but most of the time shipping is like 3x more expensive than the parts. (which you all already know hence the GB) I'm hoping to get as many as I can to cut down on the number of places I need to order from.

Any help is appreciated.

Ken


15684860245_037ed86cd5_o.jpg
 

gdeal

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ken, the fastenal washers were deleted and replaced with something else - since i don't build i have no idea with what. all i did was order and i know for a fact nothing came from fastenal
good luck!

The parts list is updated and referenced in the build doc. The Fastenal parts are available at Mcmaster. The new links are provided.
 

gdeal

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Just for clarity....again....lol

Black Detail material (acrylic-based photopolymer) is different than Black Strong and Flexible (Nylon - PA2200) at Shapeways.

Sculpteo has Black Plastic which is their version of Black Strong and Flexible (same PA2200)

Shapeways doesnt have polished Black Strong and Flexible, but Sculpteo does have a polished Black Plastic.

I have ordered Black Strong and Flexible from Shapeways. It comes slightly rough similar, very similar to the white unpolished. If the print has small defects, its a 50/50 proposition to smooth them out and not hit the white material underneath. The black dye just doesnt go that deep.

I havent yet ordered Polished Black Plastic from Sculpteo, but if it is anything like the other color polished parts I have received from them, I assume they wont need any meaningful sanding or smoothing. So if I do order any Black Plastic parts going forward, they are coming from Sculpteo and they will be the polished version. If the dye process is similar across Sculpteo colors, (based upon what I have seen so far) I would get the polished version for any color. Really just to eliminate the headache of potentially getting that one off part that needs sanding. That and the slightly smoother fitting of parts.
 
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