The Slingshot Forums banner

1 - 12 of 12 Posts

·
Registered
Joined
·
5 Posts
Discussion Starter · #1 ·
Hi, after the final shaping of a catapult, what is the best way of finishing it to make it 'glass smooth'? I have various sand papers, wire wools, and also a sanding mop (for my drill). I have various oils, and varnishes to experiment with, but I want to know what you guys do to make it as smooth as possible. Many thanks, Ben
 

·
Ronin
Joined
·
1,286 Posts
Take up to really high grit sandpaper, working up to super fine grit. Then give it a bath in linseed oil. After that there are so many ways to get a nice finish that I don't know where to begin lol.
 

·
Senior Member
Joined
·
3,951 Posts
I prefer finishing with super glue but that' s my personal choice.<br>Read <a href="http://theslingshotforum.forumotion.com/t1167-general-sandpaper-finishing-discussions?highlight=finishing" class="postlink">THIS</a> and you will find good info i think.
 

·
Registered
Joined
·
5 Posts
Discussion Starter · #4 ·
Okay cool, what do people generally use to sand with? What works best? I'd like to be able to do it as quick as I can without skimping on quality!
 

·
Registered
Joined
·
1,015 Posts
once i used water resistant wood glue after sanding. then polished with chrome polish paste. came out nearly as shiny as a superglue finish but took a lot longer to dry.
 

·
Registered
Joined
·
1,015 Posts
<table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
<tr><td><span class="genmed"><b>Mujician wrote:</b></span></td></tr>
<tr><td class="quote">Okay cool, what do people generally use to sand with? What works best? I'd like to be able to do it as quick as I can without skimping on quality!</td></tr>
</table>
<span class="postbody"><br><br>normally just by hand. sure, you have to have a nice surface before. sanding directly after rasping takes a lot of time <img src="http://illiweb.com/fa/i/smiles/icon_biggrin.png" alt="Very Happy" longdesc="1">. you also could use a dremel/proxxon. as you prefer.</span>
 

·
Registered
Joined
·
5 Posts
Discussion Starter · #7 ·
<table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
<tr><td><span class="genmed"><b>MaddyMax wrote:</b></span></td></tr>
<tr><td class="quote">
<table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
<tr><td><span class="genmed"><b>Mujician wrote:</b></span></td></tr>
<tr><td class="quote">Okay cool, what do people generally use to sand with? What works best? I'd like to be able to do it as quick as I can without skimping on quality!</td></tr>
</table>
<span class="postbody"><br><br>normally just by hand. sure, you have to have a nice surface before. sanding directly after rasping takes a lot of time <img src="http://illiweb.com/fa/i/smiles/icon_biggrin.png" alt="Very Happy" longdesc="1">. you also could use a dremel/proxxon. as you prefer.</span>
</td></tr>
</table>
<span class="postbody"><br><br>Sorry. I meant like sand paper, wet/dry paper, wire wool. All these differen't things come in all these different grits. So I was wondering what I should use?</span>
 

·
Registered
Joined
·
5 Posts
Discussion Starter · #9 ·
<table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
<tr><td><span class="genmed"><b>mikehunt042084 wrote:</b></span></td></tr>
<tr><td class="quote">Read the post tokSick linked to, it lists the grit</td></tr>
</table>
<span class="postbody"><br><br>Yes, I saw that, but the question was what do I use? Not which grit do I use? Sand paper, wet/dry paper, wire wool or what? sorry if that wasn't clear.</span>
 

·
Registered
Joined
·
1,015 Posts
dry sand paper for the wood until sanding with the finest grit. then make the wood a little wet. let it dry then sand again with the finest grit. apply the coating. after coating's dry you can wet sand and polish it. the more you repeat the different steps, the better it looks like.
 

·
Registered
Joined
·
113 Posts
I first rasp it with the thinest flat metal rasp, then I sand it a lot with rough grid paper, then I put a layer of linseed oil, then I cover it with a layer of polyurethane varnish, I re sanded it with very very high grid sand paper specific for paint re sanding, give another layer, resand it and give the forth one
 
1 - 12 of 12 Posts
Top