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Old 07-19-2019, 06:59 AM
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Flash Flash is offline
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Default Estes Titan IIIe clone

I have talked with Boyce Aerospace about 3D printing all the plastic parts it takes to build a Estes Titan IIIe Rocket. They worked up the files and will print these at the following cost:
ďI can print all the parts for the Titan IIIe on our FDM printers for $55.00 plus $10.00 shipping. I can also print all the parts on our DSLA Hi-Rez printer (50 um resolution) for $75.00 plus $10.00 shipping.Ē

Here is the original kits tube sizes and lengths for the Estes 2019 Titan IIIE based on John Brohmís, tube ref. List.

BT-70 was 6.25Ē long: This is the Main upper Payload Bay

BT-60 was 13.313Ē long: This was the main lower Air Frame

BT-60ís was 10.375Ē long: Two of these serve as the main side boosters

BT-50ís was 4.00Ē long: Two were used for the fin tube holders in each of the BT60 side boosters.

BT-950ís was 6.25Ē long: the fins was mounted on these and they were pushed into the two side boosters for flight.
6.25Ē

BT-5ís was 3.75Ē Long: Two serve as the catalyst fuel tanks

BT-50 was 2.75Ē Long: Served as the motor mount tube.

I believe e rockets SEM-LT-085160 tube will sub out for the BT-950 fin pod tubes that slide into the BT 50s but this will have to be doubled Checked.

Just ordered mine today FDM printed.

Hope you friends like this idea? Sure beats eBay prices for this kit.
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Old 07-19-2019, 08:19 AM
astronwolf astronwolf is offline
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Quote:
Originally Posted by Flash
Hope you friends like this idea? Sure beats eBay prices for this kit.

I object to the surface roughness and visible layer lines of FDM printed parts. Sure, you can fill in the roughness and try to cover up the layer lines, but the parts get very heavy. Many people don't seem to mind what I perceive as a gross defect; if they're happy with the part quality then I am happy that they found a way to enjoy this hobby.
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Old 07-19-2019, 09:30 AM
stefanj stefanj is offline
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I have read that printed parts can be smoothed out, at least to some extent, by putting them in a closed container with some acetone. The vapors soften the surface and allow it to be polished.

I'd rather have injection molded parts, mind you!
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Old 07-19-2019, 11:22 AM
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Iíve held off buying any 3D printed parts due to the amount of sanding required. Parts made with the new DSLA printers look promising from pictures Iíve seen.

I can probably wait, I have close to 150 kits I can build in the meantime. I probably have enough parts to build another 15-20 rockets. Iím assuming Iím about in the middle of the pack. Iíve heard others talk about having many hundreds of unbuilt kits. Somebody out there mentioned having over 1000 kits.
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Old 07-19-2019, 01:58 PM
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Hey you got me concerned so I upgraded to the DSLA printing, it does a very good job, I have Saturn 1 SA5, SA7, 1b from them printed that way.

They have just added DLP printing which they say requires no sanding. Looks like they are going to give rocketeers a choice mainly between DSLA or DLP printing in the future with DLP costing more. They are offering the 1/100 Scale Saturn V fin-shroud assembly first with this type of printing.

I talked to E-Rockets about the tube choice for the Titan fin pods. Randy said that LT085 would be a tight fit into a BT50 and he recommend a ST8F into a ST9 for the fin pods which is workable.

Here is my thoughts, The LT085 is .040 thick, giving you good strength and should be no problem to sand down some, leaving a desirable tight fit to hold them in place during flight.

Also, they have another option, they have a BT50+ that a BT50 can slide into, these two tubes could also serve as a replacement for the Titan's original BT950 into the BT50 combination.

So a builder would have at least three choices here for the fin pods and booster receiver tubes
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Old 07-19-2019, 07:36 PM
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Looks like I need to do some reading. I thought that DSLA was the hottest thing going. I didnít realize DLP is the latest technology that can eliminate, or at least greatly reduce, any need to sand.
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Completed!: Painted Prowler! (ditched the pink tube wrap ...)
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  #7  
Old 07-20-2019, 06:56 AM
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What Is DLP? DLP, or digital light processing, is a 3D printing technology that projects each layer, creating an illuminated plane where photopolymerization occurs. Unlike SLA, restricted to a single spot, the moment the light hits the resin, the whole layer is formed at once during DLP printing. A LCD screen creates a digital mask of each layer that functions as a stencil of the object that is being printed and allows LED ultraviolet light to pass thru and cure the resin.


Why DLP? Products printed using DLP are highly-detailed and require no sanding! Just primer, paint and you're done!

Copied from Boyce Aerospace site
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Old 07-20-2019, 10:19 AM
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Quote:
Originally Posted by Flash
What Is DLP? DLP, or digital light processing, is a 3D printing technology that projects each layer, creating an illuminated plane where photopolymerization occurs. Unlike SLA, restricted to a single spot, the moment the light hits the resin, the whole layer is formed at once during DLP printing. A LCD screen creates a digital mask of each layer that functions as a stencil of the object that is being printed and allows LED ultraviolet light to pass thru and cure the resin.


Why DLP? Products printed using DLP are highly-detailed and require no sanding! Just primer, paint and you're done!

Copied from Boyce Aerospace site

Does DLP printing use a disco mirror like DLP TV's of previous decades?


.
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Old 07-20-2019, 01:06 PM
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??? When in doubt, google
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Old 08-31-2019, 07:44 PM
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Update, Stickershock23.com now has the decals sets for this Rocket in vinyl. It has been said that their decal sheets look a lot better than the original ones. The bronze really stands out. The Titan IIIe decals require two sheets, the cost is $30 + 8 shipping. Iíve got mine on order, just wanted to let everyone know since they arenít on their website yet. If anyone wants them, just use the email contact info on their site.
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