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Forum topic by woodworm1962 posted 02-15-2018 04:02 PM 412 views 0 times favorited 6 replies Add to Favorites Watch
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woodworm1962

145 posts in 298 days


02-15-2018 04:02 PM

I have been making these @ 20 inch clocks with a 6 inch face. I have been using 1/4 inch MDF. AS you might expect it takes some time to finish and PAINT the edges black. All in all it looks great but takes too much time. I also print the graphics out on matte thick paper. Spray tack it on then finish then I have to put like 10 coats of Gloss Lacquer to get the shine I need.

YOu cant see from these pics but the clock has a few 3D Levels to it

I am looking into a gloss paper but it has been my experience that the gloss covering will chip around the edges and where machined…

For now I am looking for a substrate replacement for the MDF one I might not have to paint the edges BY THE WAY THE EDGES Will always be black

I found this From Menards

I was looking up how to glue anything to it. It takes a very special GLUE and you have to FLAME all surfaces prior to glare up

I like this product because it’s BLACK and would not have to be painted.

Someone suggested some material that SIGN makers use could work…… ANY INDEAS?

Thanks

-- No one likes the truth...


6 replies so far

View John Smith's profile

John Smith

1481 posts in 360 days


#1 posted 02-15-2018 04:47 PM

yes, we use a variety of 1/4” composite materials in the sign industry.

stop by your local “sticker shop” and you could probably get an armload
of his scraps for a song. much cheaper than buying whole sheets of something.
then you can experiment to see what will work best for your projects and order some of that.
if the shop has an ink printer, you might even get a good deal on printed decals
instead of printing them yourself.

-- I started out with nothing in life ~ and still have most of it left.

View Mike_D_S's profile

Mike_D_S

494 posts in 2412 days


#2 posted 02-15-2018 05:36 PM

Woodworm,

When I make signs with some form of 3d expression, I usually handle the base color as an order of operations thing.

If the cut work is mostly edge forming and inset lettering, I paint the whole thing the primary color then mask off the areas to be edged and inset with masking vinyl. Make all the cuts, paint and then remove the mask.

If the item will get graphics or multi color paint work on the flat areas, then I do all the cutting, paint the whole item the edge color and then do the rest.

I think if you basically did a complete coat of black on the whole thing prior to doing the rest of the paint work the edges won’t be an issue as it’s much easier to just shoot the whole thing black than trying to trim out the edges.

Mike

-- No honey, that's not new, I've had that forever......

View jbay's profile

jbay

2859 posts in 1097 days


#3 posted 02-15-2018 07:16 PM

Have you considered black plexiglass? Not sure how well it would work for you, but it’s shinny and the edges are black. You would still have to flame polish the edges, unless you had them laser cut.

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woodworm1962

145 posts in 298 days


#4 posted 02-15-2018 08:23 PM

Thanks for all your help.

Here is what I have been doing…. I make a design om my computer then print it out on a 13×19 Epson. I have been outputting on 9 mil double sided Presentation paper because that’s what i have a bunch of. I have some Glossy but its very thing. I gang all the separate pieces on an 13×19 artboard for output Takes three sheets to make one entire large clock.

I then cut them out roughly, spray tack the back twice 3m M77 and two coats on my 1/4 inch MDF. Then I rough cut them or finally cut them out on my 14 inch bandsaw and for the finer detail and inside scroll work i use my WEN scroll saw.

I tten saw the edges with disc sanders 1×30 Grizzly Disc Bet sander and for fine tight spots and INSIDE cuts I use these very cool 1/4 sanders that go in my scroll saw. CAN’T SAY ENOUGH ABOUT THOSE!

I easy over the edges with sandpaper.

Then spray about 10-15 coats of Thinned out Brushing lacquer till I think its done. I have lost alot of brain cells doing this.

For the LENS or clock face cover I heat up .08 inch clear plexi/acrylic in my oven then drap over a form that if 3/4 high, with a round outer part lens, cut off the flash sand then GLUE all the pieces together.

They look great but take too damn long.

I have been given some MATTE VINYL sign stuff my local printer gave me that he uses for large format signs HE would of given me gloss but he usually doesn’t stock that.

If the MATTE doesn’t melt when machining of doesn’t CHIP off think/color I will get some gloss. Which I figure was cut way down on lacquer if I need any at all.

My local printer does not have anything like gator board only that corrugated plastic signage B.S.

I have looked into SOLID BLACK 1/4 gator board and it is PRICEY and does not come in 1/4, thinnest is 3/16 BUT I could live with that. AGAIN how does it WATERBOARD look on the edge? How does it machine/sand. GLUE.

I have tried HOTGLUE on part to speed things along only to have all the parts pop off later.

Using Tightbond 2 for assembly and you cant pull them apart with a monster truck. BUT again there is time.

ALSO the longer the parts have to be out,worked on and waiting for glue and paint to dry the more they seem to get damaged and dinged up..

ALSO the M77 i use seems to build up on my bandsaw blades and the guide bearings Have to clean them off a lot

KILL ME!

-- No one likes the truth...

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woodworm1962

145 posts in 298 days


#5 posted 02-15-2018 08:31 PM

STILL the glue issue?


Have you considered black plexiglass? Not sure how well it would work for you, but it s shinny and the edges are black. You would still have to flame polish the edges, unless you had them laser cut.

- jbay


-- No one likes the truth...

View woodworm1962's profile

woodworm1962

145 posts in 298 days


#6 posted 02-15-2018 08:34 PM

I am exploring just that JOHN…. He gave me some to experiment with. I do have a EPSON p400 that handles 13×19 but not sure about this sticker medi he gave me. ALSO not sure hoe well it will stick. Cuuld spray a coat of like m77 on the MBF before applying


yes, we use a variety of 1/4” composite materials in the sign industry.

stop by your local “sticker shop” and you could probably get an armload
of his scraps for a song. much cheaper than buying whole sheets of something.
then you can experiment to see what will work best for your projects and order some of that.
if the shop has an ink printer, you might even get a good deal on printed decals
instead of printing them yourself.

- John Smith


-- No one likes the truth...

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