Bondrail underside tips and tricks???

[Vumad]

Anyone have any tips or tricks they are using to work the underside of the bond rail? My B1 had bond rail damage which I have repaired. Doing the finishing work. It's pretty difficult to get in there with putty knives or for sanding. Also curious if anyone has any tips for when they spray primer and paint in areas like those.

Thanks

 

[Hirschfelt]

I'm no professional but cutting sanding blocks has worked for me.

 

[brapperdoodle]

Just take it in steps, do as much as you can and walk away. If you have an area with some meat you need to really grind down, I have had great success with this sander from NT. You can move the belt at any angle to help you reach stuff. Its worth checking out! But defiantly get better belts for it...

Klutch Mini Air Bandfile Belt Sander 15,000 RPM, 3.5 CFM | Northern Tool

The Klutch® Mini Air Bandfile Belt Sander features a variable speed motor that operates at 10,00015,000 RPM. The 15/32in. x 18in...

www.northerntool.com

 

[Vumad]

I use carbide burrs from Fastenal on a 1/4" die grinder to get the meat. I have a 3/8" straight bur and one that kind of looks like a pine cone. They are like $50 each, but they never get dull or change shape if using strictly on fiberglass. I have an extended straight and a right angle grinder and use both.

That mini sander is a good suggestion. I'll have to see about getting one. Thanks.

 

[WFO Speedracer]

also a di grinder with 3m rolock discs works wonders in hard to reach spots

 

[smokeysevin]

I really like the oscillating multitools for oddball stuff but they aren't the easiest to use in grooves. You can get really narrow sander attachments for the oldschool "mouse"style sanders. Band files are excellent, and 90 degree die grinders are really helpful with burrs or rolock discs. Getting around tubbies though, the only thing I found was making wooden blocks and wrapping them in sandpaper, even then, it is crap work.

Sean

 

[Vumad]

I really like the oscillating multitools for oddball stuff but they aren't the easiest to use in grooves. You can get really narrow sander attachments for the oldschool "mouse"style sanders. Band files are excellent, and 90 degree die grinders are really helpful with burrs or rolock discs. Getting around tubbies though, the only thing I found was making wooden blocks and wrapping them in sandpaper, even then, it is crap work.

Sean

I do 3D print tools for stuff like that. Not sure if you have ever considered it, but it's nicer than wood. You can easily print a custom radius or a complexed curve. I used Fusion 360 and a XYZ Davinci Pro 1.0 printer.

 

[WFO Speedracer]

long time ago I bought an adjustable sanding block, it is similar to a contour gauge , it has a bunch of plastic fingers, you unlock it, set the contour, lock it then put sandpaper on it, it duplicates any contour, no idea where you would find one now though

 

[Vumad]

long time ago I bought an adjustable sanding block, it is similar to a contour gauge , it has a bunch of plastic fingers, you unlock it, set the contour, lock it then put sandpaper on it, it duplicates any contour, no idea where you would find one now though

I don't know if I should give this a thumbs up for being good info or a thumbs down for telling me about something I can't have!

 

[WFO Speedracer]

I don't know if I should give this a thumbs up for being good info or a thumbs down for telling me about something I can't have!

Sorry I searched for it and came up empty , which in itself is very uncommon.

 

[smokeysevin]

Sorry I searched for it and came up empty , which in itself is very uncommon.

Clearly it is a government coverup to keep us spending our time sanding bond rails rather than uncovering that bigfoot is conspiring with the illuminati to take over the UFO's.

Sean

 

[smoofers]

long time ago I bought an adjustable sanding block, it is similar to a contour gauge , it has a bunch of plastic fingers, you unlock it, set the contour, lock it then put sandpaper on it, it duplicates any contour, no idea where you would find one now though

Would it be possible to post a pic of your sanding block?

 

[WFO Speedracer]

I will see if I can find it , it would be fairly easy to replicate if you had a 3d printer, it's kinda like the Malco but the fingers are much thinner so it can produce much finer detail.

 

[WFO Speedracer]

I told you I would find it when I wasn't looking for it ,it was in my tool trailer side box it's called the body shaper , Patent number 629431, I have not yet found it in the database though.

 

[WFO Speedracer]

And here you go once I had the name that link was my b!tch !

http://www.2040-parts.com/auto-body...g-block-sand-virtually-any-contour--i1025666/

 

[smoofers]

And here you go once I had the name that link was my b!tch !

http://www.2040-parts.com/auto-body...g-block-sand-virtually-any-contour--i1025666/

Awesome, thank you!

 

[Lavin]

A piece of polyester, sand to the shape you need, wrap paper around it and get sanding!

 

[Quinc]

Comformable Sanding Block?

View attachment 422553

 

[WFO Speedracer]

Hmmm $80 versus $19.95 that's going to be a really hard decision.