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PAST WINNERS
Postage stamp mount rebirth
Page 1 of 2
Page 1 of 2 • 1, 2
Postage stamp mount rebirth
Finally took the time to draw up the postage stamp mount that was available back in the day.
I need to use a .25mm nozzle on the 3D printer to get better detail. This was printed with a .4mm nozzle with a .2mm layer height in clear PETG. Once I have the dimensions dialed in I’ll try a run in zytel or glass filled nylon.
Took 20 minutes to print. Used support on the overhang. I used solid fillets in the design vs the thin individual ones. Easier to print this way.
![Postage stamp mount rebirth 43f6c310](https://i.servimg.com/u/f32/16/99/97/34/43f6c310.jpg)
![Postage stamp mount rebirth 54aa9c10](https://i.servimg.com/u/f32/16/99/97/34/54aa9c10.jpg)
![Postage stamp mount rebirth 6fb17710](https://i.servimg.com/u/f32/16/99/97/34/6fb17710.jpg)
I need to use a .25mm nozzle on the 3D printer to get better detail. This was printed with a .4mm nozzle with a .2mm layer height in clear PETG. Once I have the dimensions dialed in I’ll try a run in zytel or glass filled nylon.
Took 20 minutes to print. Used support on the overhang. I used solid fillets in the design vs the thin individual ones. Easier to print this way.
![Postage stamp mount rebirth 43f6c310](https://i.servimg.com/u/f32/16/99/97/34/43f6c310.jpg)
![Postage stamp mount rebirth 54aa9c10](https://i.servimg.com/u/f32/16/99/97/34/54aa9c10.jpg)
![Postage stamp mount rebirth 6fb17710](https://i.servimg.com/u/f32/16/99/97/34/6fb17710.jpg)
Jason_WI- Top Poster
Posts : 3123
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Re: Postage stamp mount rebirth
Good job Jason. They look great.
NEW222- Top Poster
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Jason_WI- Top Poster
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Re: Postage stamp mount rebirth
One sure couldn't ask for anything better.
NEW222- Top Poster
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Jason_WI- Top Poster
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Re: Postage stamp mount rebirth
The prototype looks good Jason , when cleaned up will make good display or runner !! Good to see your advancing in the hobby
![lol!](https://2img.net/i/fa/i/smiles/lol.gif)
![This Site Rocks!](/users/3015/29/34/60/smiles/1341101253.gif)
getback- Top Poster
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Jason_WI- Top Poster
Posts : 3123
Join date : 2011-10-09
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Re: Postage stamp mount rebirth
The Goldberg version is a tight fit around the spraybar so your modifications should make it much easier.
Cribbs74- Moderator
Posts : 11906
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Location : Tuttle, OK
Re: Postage stamp mount rebirth
Hi Jason, Those mounts look terrific! Were those printed with the higher-res. .25mm nozzle? If so; can you print the aforementioned zytel or glass-filled nylon materials using that nozzle?
Re: Postage stamp mount rebirth
These are still with a .4mm nozzle. I wanted to send a few out for testing before I run a batch in nylon. The fit will still be tight on the spray bar with these. A flat file or trimmed with xacto knife to adjust the fit.
If I remove any more material then might as well print in 2 halves. I have seen these cut before. Or cut them for installation.
If I remove any more material then might as well print in 2 halves. I have seen these cut before. Or cut them for installation.
Jason_WI- Top Poster
Posts : 3123
Join date : 2011-10-09
Age : 49
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Re: Postage stamp mount rebirth
Nice going Jason, never dawned on meJason_WI wrote:Printed 6 in 2:15 minutes. This is the updated version with the wider opening for the spraybar.
![sleep](/users/3015/29/34/60/smiles/3957092095.gif)
![Very Happy](https://2img.net/i/fa/i/smiles/icon_biggrin.png)
With additional Sure Start backs and modified for Killer Bee backs made the mount unnecessary, but with those who still have the postage stamp back, yours is certainly a good up-to-date option.
![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
GallopingGhostler- Top Poster
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Re: Postage stamp mount rebirth
I am unfamiliar with the strength of these printed materials, how do they compare to original style plastic parts?
jarboy- Moderate Poster
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Location : Minnesota
Re: Postage stamp mount rebirth
Jason_WI wrote:These are still with a .4mm nozzle. I wanted to send a few out for testing before I run a batch in nylon. The fit will still be tight on the spray bar with these. A flat file or trimmed with xacto knife to adjust the fit.
If I remove any more material then might as well print in 2 halves. I have seen these cut before. Or cut them for installation.
Oh, oh, now that I’m no longer in school, ILike Tests! Pm me with cost and paypal for a test bed model!!
Marleysky- Top Poster
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Age : 71
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Re: Postage stamp mount rebirth
Well, I have a plane set up for the postage stamp with the Goldberg mount. If you want one tested to destruction (as all my planes are), I'll give it a go.
The MXC Elimination Challenge Mark
The MXC Elimination Challenge Mark
batjac- Diamond Member
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Re: Postage stamp mount rebirth
jarboy wrote:I am unfamiliar with the strength of these printed materials, how do they compare to original style plastic parts?
With nylon or nylon with carbon fiber it should be just as strong as a molded part. Special requirements are needed to successfully print with nylon. The filament must be dried or baked prior to printing to eliminate moisture. Moisture in the filament will weaken layer adhesion. I use a continuous filament dryer while printing nylon.
Jason_WI- Top Poster
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Re: Postage stamp mount rebirth
Shoot i will test one if you like i would like to see if i can run a postage stamp up to 20K
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getback- Top Poster
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Jason_WI- Top Poster
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Re: Postage stamp mount rebirth
Simply amazing Jason. Those look very well made. It is amazing what one can do in their own home now-a-days. But I have to ask. How long does it take to draw something like that up? Or even better, if someone with little knowledge of 3d printing like myself how long would such an endevour roughly take? Seeing your work make me think more and more.
NEW222- Top Poster
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Re: Postage stamp mount rebirth
It didnt take very long to draw up in tinkercad. I went from design to holding an actual part hot off the 3D printer in my hand in about an hour.
Tinkercad is pretty easy to use and it’s online based. Just sign up for an account.
Tinkercad is pretty easy to use and it’s online based. Just sign up for an account.
Jason_WI- Top Poster
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Join date : 2011-10-09
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Re: Postage stamp mount rebirth
Looks pretty good. Will the PETG stand up to nitro or is that why you are going with Nylon on the next run?
Cribbs74- Moderator
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Re: Postage stamp mount rebirth
PETG will break down with nitro. See the chemical resistance chart for PETG.
https://docs.google.com/viewerng/viewer?url=http://3dfilaprint.com/wp-content/uploads/2014/05/Chemical-Resistance-Chart-Detail-PETT-or-PETG.pdf&hl=en_GB
Zytel will handle gasoline with alcohol and diesel fuel. I couldn’t find a reference to nitromethane.
https://docs.google.com/viewerng/viewer?url=http://3dfilaprint.com/wp-content/uploads/2014/05/Chemical-Resistance-Chart-Detail-PETT-or-PETG.pdf&hl=en_GB
Zytel will handle gasoline with alcohol and diesel fuel. I couldn’t find a reference to nitromethane.
Jason_WI- Top Poster
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Jason_WI- Top Poster
Posts : 3123
Join date : 2011-10-09
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Re: Postage stamp mount rebirth
Looks great. So after printing, do you have to let it cool for a bit before handling and or use it so it cures, or is it good to go right off the printer? Just wondering as this is kind of a structural part for mounting.
NEW222- Top Poster
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Re: Postage stamp mount rebirth
I wait for the bed to cool down a bit before attempting to remove. Removing warm parts can distort them. The bed the print sits on is at 110C. The nozzle temperature for nylon is 270C. The nylon is molten and hardens fairly quickly. If you print small features and only of one part the part can turn into a molten blob. That’s why I like to print multiple parts of one item so it gives the fresh layer time to cool.
PLA filament needs a cooling fan enabled. No fan with nylon or separation between layers can occurs. Ideally my printer should be in a heated chamber for best results with nylon or ABS.
I will soak the nylon parts in water for a day then they will be pliable. Fresh off the printer they are hard and brittle.
PLA filament needs a cooling fan enabled. No fan with nylon or separation between layers can occurs. Ideally my printer should be in a heated chamber for best results with nylon or ABS.
I will soak the nylon parts in water for a day then they will be pliable. Fresh off the printer they are hard and brittle.
Jason_WI- Top Poster
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![-](https://2img.net/i/empty.gif)
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