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Lots of dumb case modding questions...

post #1 of 20
Thread Starter 
Okay, I have a lot of questions that I would like answered. I have taken a quick look around and haven't seen them, so here they come. I am doing my first mod, a full case mod.
  1. In order to cut aluminum with a dremel, what cutting blade do I need? Is there anything I should know before cutting the metal?
  2. What kind of Acrylic do I need to buy for a window?
  3. What is special about cutting Acrylic?
  4. How do I polish cut acrylic?
  5. What is 'Wet Sanding?'
  6. How do I get rid of spray paint drips?
  7. Should I sand the metal before painting?
  8. What sort of file should I use to smooth my cuts?
  9. Any extra help?

Thanks in advanced you guys. I may add more questions later as I run into them...
post #2 of 20
Quote:
Originally Posted by CorporalAris View Post
Okay, I have a lot of questions that I would like answered. I have taken a quick look around and haven't seen them, so here they come. I am doing my first mod, a full case mod.
  1. In order to cut aluminum with a dremel, what cutting blade do I need? Is there anything I should know before cutting the metal?
  2. What kind of Acrylic do I need to buy for a window?
  3. What is special about cutting Acrylic?
  4. How do I polish cut acrylic?
  5. What is 'Wet Sanding?'
  6. How do I get rid of spray paint drips?
  7. Should I sand the metal before painting?
  8. What sort of file should I use to smooth my cuts?
  9. Any extra help?

Thanks in advanced you guys. I may add more questions later as I run into them...
I'll answer a couple:
5: Wet sending is using some sort of liquid like water or oil on the sandpaper.
6: Sanding with a high grit until it's smooth, and then paint coats over it.
7: It would be optimal to sand before priming and painting because it helps the primer adhere better.
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post #3 of 20
5. Wet sanding is just pouring water over the material and sanding like you would normally do. This gives a smoother texture (Do this at the end with high grit sandpaper is you wish)
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post #4 of 20
Thread Starter 
Cool... Thanks for teh quick answers. +repage.
post #5 of 20
Quote:
Originally Posted by CorporalAris View Post
Okay, I have a lot of questions that I would like answered. I have taken a quick look around and haven't seen them, so here they come. I am doing my first mod, a full case mod.
  1. In order to cut aluminum with a dremel, what cutting blade do I need? Is there anything I should know before cutting the metal?
  2. What kind of Acrylic do I need to buy for a window?
  3. What is special about cutting Acrylic?
  4. How do I polish cut acrylic?
  5. What is 'Wet Sanding?'
  6. How do I get rid of spray paint drips?
  7. Should I sand the metal before painting?
  8. What sort of file should I use to smooth my cuts?
  9. Any extra help?

Thanks in advanced you guys. I may add more questions later as I run into them...
Hi.

1) If a Dremel is all that is available, I would use a carbide sideways (spiral) bit. This is (imho) not the ideal means. A cutting disk could be used, but cutting around hole with a flat surface is inherently problematic.

2) Any type will do. But, if you are intending to use power tools on the acrylic then I would try to get "cell-cast" as opposed to "extruded".

3) Acrylic is brittle, and shows every flaw clearly. Polycarbonate is a good alternative that is easier to work with. Specialised bits and blades yield a cleaner result that leads to less clean-up time.

4) Sandpaper and a power tool that has a muslin wheel attachment in conjuction with rouge. Polishing can be done soley by hand using 1500+ grit sandpaper. For a really clean finish one can use Novus products.

5) Using water or another liquid to assist in the reduction of friction and to assist in heat-disipation (generally for "super-shine" results).

6)Wet-sanding, more (light coating) painting...repeat until smooth. Waxing will really make the surface shine.

7) For the most part yes. Sanding and Primering will increase the durablility, lifespan and aesthetics of a paint job.

8)



9) ..patience and attention to detail will make for a memorable experience. Quality, not Quantity (imho).

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post #6 of 20
7) yes, first sand then prime it will look much better and last longer.

9) Download google sketchup, its a free 3d modelling thing which lets you plan your work to see if it looks uber cool, or not.

Thats all I really know, hope it helps
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post #7 of 20
Nice one, japan1.

Sketchup is so easy to use that an Old-nobblet like me can make quasi-professional-looking models
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post #8 of 20
1) I used the regular cutting wheel. I used painters tape to mask off the area I was going to cut and drew on that.

2) For the acrylic, see if you can get 2-3mm thick.

3) Acrylic likes to melt back together when cutting it, so have the dremel on a high setting to cut threw it faster.

and for 9) If you are spray painting, slow and even coats. Make sure they are all in the same direction. I usually go from left to right and make a thin coat, wet sanding after each with 1000+ grit.
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post #9 of 20
Quote:
Originally Posted by BlackandBlue View Post
3) Acrylic likes to melt back together when cutting it, so have the dremel on a high setting to cut threw it faster.
all depends on what you're using to cut it; cutting discs tend to melt it more than cutting; and higher cutting speed actually induces more heat making it more likely to melt. I do most of my acrylic cutting with a jigsaw using a high-TPI blade and that works quite well.
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post #10 of 20
Quote:
Originally Posted by CorporalAris View Post
Okay, I have a lot of questions that I would like answered. I have taken a quick look around and haven't seen them, so here they come. I am doing my first mod, a full case mod.
  1. In order to cut aluminum with a dremel, what cutting blade do I need? Is there anything I should know before cutting the metal?
    best to get at least a reinforced cutting disc. should come in packs of like 5 or 10 if you buy from Home Depot or Lowes.
  2. What kind of Acrylic do I need to buy for a window?
    Depends how fancy you want it. If you just want a clear panel, you can get one from Home Depot or Lowes. If you want tinted, may find it at a local plastic's shop or order online at like mcmaster.com
  3. What is special about cutting Acrylic?
    cant use something that rotates in a small area at high rpm. jigsaw high tpi blade or circular saw with high tpi blade works well (same for table or radial arm saws)
  4. How do I polish cut acrylic?
    depends on the acrylic. i know those acrylic plexiglass panels you buy at home depot or lowes can be polished really easily with a torch flame. some acrylics may require a buffer (whether by machine or attachment to drill and rouge)
  5. What is 'Wet Sanding?'
    there are special kinds of sandpaper that can be used wet or dry. wet sanding uses a water/dishwashing soap solution to sand.
  6. How do I get rid of spray paint drips?
    sanding.. wet sanding to be specific =P
  7. Should I sand the metal before painting?
    yes, best to sand before painting. anything between 300 - 600 grit is good imo. sanding just helps the paint stick better.
  8. What sort of file should I use to smooth my cuts?
    could either use rotary band sander attachment on dremel, or a metal hand file. dremel attachment works most of the time.. if you ahve like 90 degree cuts, the hand file does wonders! using a wooden block and sandpaper works too.
  9. Any extra help?
    thin layers of paint. let it completely dry (depending on climate, 1/2 - 2 days.) use a few layers of primer before you paint. if you plan to cut metal or "Exposed" acrylic, best to get painters tape to tape the area you are going to cut, draw out the line you are going to cut, then cut. if it is straight cuts like on acrylic, and you are using a jigsaw or circular saw, see if you can use a 2x4 or something of that nature as a guide for the saw. works great! (remember to secure the guide down with clamps. lol)

Thanks in advanced you guys. I may add more questions later as I run into them...
read bold...

*edit*

dang it syrillian. always beat me lol
Edited by iandroo888 - 7/5/08 at 1:50pm
 
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