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3D Printing of Parts


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50 minutes ago, Rally Pack 2000 said:

Does that stuff cover rough surfaces to smooth them out? I can get the early vents that are in rough condition and thought of using plastic filler and sanding them up. If they can be dipped in all black it should simply look like new wouldn't it?

I honestly can't be sure if they're rough, but the fuse box cover was a bit. Finish is very smooth on them. 

Hydrographics starter kits are about £55 on eBay, so might be cheaper to drop them in with someone if you are going to try. 

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3 minutes ago, dt36 said:

I honestly can't be sure if they're rough, but the fuse box cover was a bit. Finish is very smooth on them. 

Hydrographics starter kits are about £55 on eBay, so might be cheaper to drop them in with someone if you are going to try. 

I hadn't thought about dipping them until you posted that suggestion today. I think it sounds like a great idea. I had thoughts of using plastic bumper filler to smooth them out and just laying plastic spray over the top but looking at your images I think your suggestion may be a lot better and achieve a more professional result. I doubt it would fill out the really rough bits where the plastic has deteriorated but with a light use of the bumper filler it should get smooth enough for the dip to cover seamlessly.

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2 hours ago, Rally Pack 2000 said:

Your printing doesn't seem as jagged or rough as the vent I have pictured. Is something like that too complex to get a smooth finish or is it just the quality of the printer and materials used?

I would say the print you have pictured is a very reasonable starting point. Maybe the layer height used for printing was a little high, for very fine prints I use 0.06 to 0.1mm layers, which gives higher quality results, but the trade off is that more time and material is consumed. The structure is complex, but that shouldn't adversely affect the quality too much. And my printer is on the lower end of the market, I've just had it long enough I know how to maximise it's potential.

I have seen a very good method for smoothing 3D prints where you take the printed product and expose it to acetone fumes for about 30 seconds. This only works with ABS, as the plastic is very soluble in acetone. It basically melts/softens the outer layer, resulting in a much smoother finish. I have never tried it, but from what I've seen it works. This video explains it very well. Maybe if the vent could be sanded, and then smoothed with acetone (if it's ABS) you would have something getting close to a factory look.

 

 

 

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  • 3 weeks later...

I acquired a set of vents and as expected they are are very brittle on the top. I have lightly sanded them to get the really loose powdery bits off but it does mean there are small chunks in parts. The Australian sun is not kind to these. So the options are:

1/ Dip them as is like Dale suggests provided the shape isn't too complex for that process?

2/ Vinvl spray them as they are now really porous and would absorb it like vinyl does and help bond the brittle surface?

3/ Spray them with plastic trim filler primer and sand to try smooth them out and then try Steps 1?

4/ Spray them with plastic trim filer primer and then spray with black plastic bumper paint?

5/ Any better ides you guys can think of?

Vents1.thumb.jpg.adba0636bf787f2aa3498f5ef6292684.jpg

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Ok I went to the Hydrographics place today and they said that this process was to put a graphic film in some form or pattern over a painted substrate. So since I want them black as per original he said he would pretty much just paint them with a 2 pack paint in satin black without any need for the graphics process. They use a high build primer on them hence how smooths out imperfect surfaces. That seemed like the way to go except that they probably wouldn't sand the vent grill slats down as those parts seem too fine and fragile so it would be impossible to anticipate what the end finish would be in the centre. I thought therefore I should proceed with it to start with using a high fill plastic primer and sanding the fine grill slats myself. I will decide then whether vinyl spray or plastic bumper paint is the way to go when I see how well the larger indents have been fill. Unless someone here has a better suggestion?

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  • 3 months later...
On 09/08/2019 at 06:33, Rally Pack 2000 said:

Can you sand this 3D printed materials? I ask because a guy has produced some replica Mk1 air vents. The earlier style which you cant seem to find in mind condition. The 3D printing has a very unsightly finish to it but was wondering if it could be sanded and finished to a more realistic standard?

3Dvent.thumb.jpg.8364121c8d7214c864caaa9fca893bfd.jpg

Some just popped up on Ebay if you are still looking for a good pair. The guy wants at least £195 though. https://www.ebay.co.uk/itm/Mk1-Escort-Early-Dash-Heater-pair-of-Vents-1968-to-70-Twin-Cam-GT-ect/193236592260?hash=item2cfdcc6684:g:Qp0AAOSwl2ddyDhA

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3 hours ago, Daniel13 said:

Some just popped up on Ebay if you are still looking for a good pair. The guy wants at least £195 though. https://www.ebay.co.uk/itm/Mk1-Escort-Early-Dash-Heater-pair-of-Vents-1968-to-70-Twin-Cam-GT-ect/193236592260?hash=item2cfdcc6684:g:Qp0AAOSwl2ddyDhA

Wow! 200 quid for non movable vents. Things are getting sadder on the parts front.

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1 minute ago, Ray said:

not as bad as your mate Justin on your side of the water RP, triple that if they were his lol

That is so true, he is my absolute last resort when there is no alternative but the ones listed above are second hand ones, his stuff is usually new old stock. He did have a pair of these new once that was only 50 pounds or so more but I thought that was too much even for new ones. They are very UV sensitive and deteriorate rapidly so here where I am it seems throwing money away since the car isn't fully shielded from the sun in the afternoon. I live in hopes for some replicas made of modern UV resistant plastics.

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  • 4 weeks later...
2 hours ago, turbo matt said:

I have wondered if mk1 escort rear light lenses could be 3d printed?

I know the inside of the lenses are textured. As I would like a clear pair to play with...

They have been available in the past even from Burtons although I think they have discontinued them now but there would have to be other sellers out there.

Clearlenses1.thumb.JPG.773839b1b03e5b7b3f0c1de18bb27ab3.JPG

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