what sanding block for round panels sections - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Body - Exterior
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 09-23-2013, 10:56 PM
cutthroatkid's Avatar
two cups of tea
 
Last wiki edit: Need more horsepower for my 305 Last photo:
Join Date: Jun 2009
Location: st.louis mo
Posts: 990
Wiki Edits: 2

Thanks: 19
Thanked 2 Times in 2 Posts
what sanding block for round panels sections

So I'm fnishing up this chevy pick up that I shaved the tailights & tailgate so I need advice on what to use to sand it down its rounded so I need a flexible sander I have one of those cheapo bondo flexible sanders but since Im sanding up & down the paper won't stay on.Any ideas?
Please excuse any typos or terseness: this email was sent from my mobile and I have clumsy fingers.
Attached Thumbnails
Click image for larger version

Name:	20130724_160554-1.jpg
Views:	60
Size:	17.1 KB
ID:	83434  

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 09-23-2013, 11:13 PM
MARTINSR's Avatar
Brian Martin,Freelance adviser
 
Last photo:
Join Date: Jun 2004
Location: San francisco bay area
Age: 56
Posts: 13,433
Wiki Edits: 0

Thanks: 1,567
Thanked 1,319 Times in 1,145 Posts
I have to tell you, this is my personal opinion on my methods and like they say, there are many ways to skin a cat. But I don't like those flexible sanders, not for something like that at least. A long gradual curve like a 50 Chevy front fender top, yeah, but not something that tight. The reason is it doesn't maintain the shape, how in the world can you block a shape when the block isn't that shape?

Here you go, are you ready for my method? I don't think you are, sit back and have a beer.

Outside of the con-caved area above the deck lid at the belt line, I did every single panel on this car with a flat block.













You can't tell very well from these photos but above the tail lamps that area is literally as round as half a third of a bowling ball, literally. Outside of that area above the deck lid which I started shaping using a brand new roll of paper towels as a block! Finished with a large rubber hose.

But the rest of the car was entirely done with flat blocks and regular old 17.5 inch long boards. The whole rear corner "bowling balls" and all the tight compound surfaces were done with a 5" rubber block, a good old rubber block.

Now, how in the world did I do this? I use a very simple concept , I look at the rounded surface as a "curved flat".

Yep, just as I would block a flat area and feel for a high spot then block it out, I feel the curved areas exactly the same, I feel for a high spot rubbing my hand over the surface just as I would a flat area, when I feel that high spot I sand it "flat" with a curved motion sanding JUST that high spot. I repeat this over and over until it's "flat". When it's "flat", well then it's a perfect curve!

Feeling it is WAY more important than some magic block can do in my opinion.

Brian

Last edited by MARTINSR; 09-23-2013 at 11:21 PM.
Reply With Quote Quick reply to this message
The Following User Says Thank You to MARTINSR For This Useful Post:
cutthroatkid (09-24-2013)
  #3 (permalink)  
Old 09-23-2013, 11:21 PM
Faith - Respect - Trust
 
Last photo:
Join Date: Sep 2012
Location: Ontario
Age: 59
Posts: 3,508
Wiki Edits: 0

Thanks: 192
Thanked 638 Times in 572 Posts
X2 on what Brian said Cut...those flexible sanders, boards or whatever, I never use them...my favorite tool in the box is the long board.

Ray
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 09-23-2013, 11:39 PM
put up or shut up
 

Last journal entry: saying goodbye to the beast
Last photo:
Join Date: Apr 2011
Location: Antelope, Ca
Posts: 2,194
Wiki Edits: 0

Thanks: 644
Thanked 265 Times in 241 Posts
I agree with flexible blocks. There's really little need for it. I could possibly see something being useful with those blocks but I don't use them. It's more important to get the longest and straightest block on there possible and situating the block so you're not digging in anywhere, so block position and sanding strokes will help you out better than just picking up a flexy block. If I need a round block it's usually the area right below body lines and I will use a long piece of pvc pipe but most times I will use the edge of my block. If it's really rounded and a compound curve I'll just use a rectangle dura block. Sometimes I'll even use the narrow edge of it to avoid digging into compound curves but hardly use round blocks and never use flexible blocks.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 09-24-2013, 06:20 AM
mitmaks's Avatar
Member
 

Last journal entry: Grille
Last photo:
Join Date: Sep 2002
Location: Washington
Age: 31
Posts: 1,599
Wiki Edits: 0

Thanks: 4
Thanked 10 Times in 10 Posts
Get a set of Durablocks, they have every block for all your sanding needs.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 09-24-2013, 07:19 AM
Mitchman's Avatar
Grand Master of the Universe
 
Last photo:
Join Date: Nov 2010
Location: North Carolina
Posts: 602
Wiki Edits: 0

Thanks: 2
Thanked 71 Times in 62 Posts
X2 on Durablocks, and learn to criss-cross in 3 directions on every surface. Use different color primers if possible or Guide Coat in a rattle can to check your progress.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 09-24-2013, 09:34 AM
MARTINSR's Avatar
Brian Martin,Freelance adviser
 
Last photo:
Join Date: Jun 2004
Location: San francisco bay area
Age: 56
Posts: 13,433
Wiki Edits: 0

Thanks: 1,567
Thanked 1,319 Times in 1,145 Posts
LOL, I come from the days before self adhesive paper and Durablocks, they didn't exist. I used a good old 3M block and a long board, that is all I had. I cut a 3M block to make narrower ones and this worked great!



I do have a few Durablocks now and they ARE very nice. To have a drawer full of them in your box would be a great way to go.

Brian
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 09-24-2013, 12:35 PM
cutthroatkid's Avatar
two cups of tea
 
Last wiki edit: Need more horsepower for my 305 Last photo:
Join Date: Jun 2009
Location: st.louis mo
Posts: 990
Wiki Edits: 2

Thanks: 19
Thanked 2 Times in 2 Posts
Quote:
Originally Posted by MARTINSR View Post
LOL, I come from the days before self adhesive paper and Durablocks, they didn't exist. I used a good old 3M block and a long board, that is all I had. I cut a 3M block to make narrower ones and this worked great!



I do have a few Durablocks now and they ARE very nice. To have a drawer full of them in your box would be a great way to go.

Brian
haha I have the smae exact blocks they were my grandpas
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 09-24-2013, 12:41 PM
cutthroatkid's Avatar
two cups of tea
 
Last wiki edit: Need more horsepower for my 305 Last photo:
Join Date: Jun 2009
Location: st.louis mo
Posts: 990
Wiki Edits: 2

Thanks: 19
Thanked 2 Times in 2 Posts
when I first got serious about this I got durablocks I also keep a couple rattle cans of black laying around to find my low spots.I just finished the 73 challenger last night. unfortunately best fellas battery was shot & I couldn't get it outside to take a good picture so hopefully he will send me one, I'm still working on this custom C 10 and I'm on a 300 C a 2011 Lexus a couple bikes & a freakin Viper!
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 09-24-2013, 04:15 PM
JeffB's Avatar
Registered User
 
Last photo:
Join Date: Jul 2006
Location: Phoenix,AZ
Age: 68
Posts: 1,747
Wiki Edits: 0

Thanks: 2
Thanked 98 Times in 88 Posts
CHeck this out:Block Sanding
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 09-24-2013, 10:28 PM
carolinacustoms's Avatar
Automotive Extraordinaire
 
Last photo:
Join Date: Dec 2012
Location: Connelly Springs NC
Age: 32
Posts: 1,118
Wiki Edits: 0

Thanks: 458
Thanked 285 Times in 242 Posts
Quote:
Originally Posted by cutthroatkid View Post
haha I have the smae exact blocks they were my grandpas

Brian, I think he is saying you are OLD

Kelly
Reply With Quote Quick reply to this message
The Following User Says Thank You to carolinacustoms For This Useful Post:
MARTINSR (09-24-2013)
  #12 (permalink)  
Old 09-24-2013, 11:22 PM
MARTINSR's Avatar
Brian Martin,Freelance adviser
 
Last photo:
Join Date: Jun 2004
Location: San francisco bay area
Age: 56
Posts: 13,433
Wiki Edits: 0

Thanks: 1,567
Thanked 1,319 Times in 1,145 Posts
Quote:
Originally Posted by cutthroatkid View Post
haha I have the smae exact blocks they were my grandpas

Are you calling me an old man!

I am a Grandpa so it's ok.



Mus-tash Grandpa, Mus-tash.



Brian
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 09-24-2013, 11:25 PM
MARTINSR's Avatar
Brian Martin,Freelance adviser
 
Last photo:
Join Date: Jun 2004
Location: San francisco bay area
Age: 56
Posts: 13,433
Wiki Edits: 0

Thanks: 1,567
Thanked 1,319 Times in 1,145 Posts
Quote:
Originally Posted by JeffB View Post
CHeck this out:Block Sanding
That's some good stuff. I may disagree with the flexible sanders but people use them so it's just an opinion of mine. That is some very good stuff on blocks!

Brian
Reply With Quote Quick reply to this message
The Following User Says Thank You to MARTINSR For This Useful Post:
John long (09-25-2013)

Recent Body - Exterior posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
finally a good round block! tech69 Body - Exterior 7 07-27-2012 05:29 PM
Block Sanding help again danny_g Body - Exterior 16 08-12-2009 11:24 PM
BLOCK Sanding dyna block or LONGBOARD?? D9ZZ Body - Exterior 6 06-26-2008 09:10 AM
O-rings in Brake Distribution Block, Square or Round and Material? Scode68 Suspension - Brakes - Steering 4 12-31-2007 08:16 AM
Sanding Block Man586 Introduce Yourself 2 07-27-2004 08:16 PM


All times are GMT -6. The time now is 09:46 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.