Deprecated: Function mysql_numrows() is deprecated in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 333

Deprecated: Function mysql_numrows() is deprecated in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 333
<br /> <b>Deprecated</b>: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in <b>/home/bluescreek/domains/kitguitars/pm/db/db.mysql.php</b> on line <b>236</b><br /> <br /> <b>Deprecated</b>: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in <b>/home/bluescreek/domains/kitguitars/pm/db/db.mysql.php</b> on line <b>236</b><br /> <br /> <b>Deprecated</b>: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in <b>/home/bluescreek/domains/kitguitars/pm/db/db.mysql.php</b> on line <b>236</b><br /> <br /> <b>Deprecated</b>: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in <b>/home/bluescreek/domains/kitguitars/pm/db/db.mysql.php</b> on line <b>236</b><br /> <br /> <b>Deprecated</b>: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in <b>/home/bluescreek/domains/kitguitars/pm/db/db.mysql.php</b> on line <b>236</b><br /> <br /> <b>Deprecated</b>: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in <b>/home/bluescreek/domains/kitguitars/pm/db/db.mysql.php</b> on line <b>236</b><br /> Anyone have some side bending pointers?

You are currently viewing Kit Guitar Forum archives. To view the current forums go to www.KitGuitarsForum.com/board



Log-in
Register
Members



Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236

Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /home/bluescreek/domains/kitguitars/pm/db/db.mysql.php on line 236
Anyone have some side bending pointers?
Author
Post
DanB

Total Topics: 50
Total Posts: 273
So today I just got 2 of the 125 dollar kits from Bardsong instruments, and I can tell everyone here, it was fast shipping, and almost effortless dealing with the guy.
Although all the parts are martin reject parts everything is usable anything from knots to splits to what ever, not overly major, but small cosmetic flaws.

Anyways, I got the ones with unbent sides, and I had just gotten a heating blanket. Well, when I told him that on the phone, he threw in 2 junk mahogany sides he had laying around that had knot holes through them that he couldn't use. They were thicknessed to .075" and extremely flimsy and ready to bend.

Well I practiced bent on the 2 of them to see what happened and to learn off of it, and here's the problems I had run into. They were thicknessed to .075" and extremely flimsy and ready to bend.

First time I bent it it all went smooth accept for the fact I didn't consider the fact that I need to make sure it didn't twist, so it twisted about a half inch, but in the mold it would work out if I was actually going to use them (I set it in to see).

Second side I bent I believe what happened is I went too slow maybe and it was too hot (for sure) the wood had dried out, and I cracked the upper bout, and actually charred the wood through (not extreme, just black tint on each side).

My questions are:

1.) Should I wrap the wood in aluminum foil and spray them before hand so it traps the moisture instead of evaporating and drying out?

2.) What temperature should the heating blanket be set at? I've got my router speed control that also works for controling the temp.

3.) Do I need metal sheet to avoid lateral warping so the sides don't try to conform to the spacing in the bending mold I have built? It is 4 molds spaced 3/4" with aluminum tape over the surface.

And if anyone else has some other points that would be important for me to acknowledge I'd really appreciate the input. I want to get a solid understanding and some confidence before I try to bend the Ovangkol sides that I have.

Thanks,
Dan

Feb 10, 10 | 7:06 pm
dviss

Total Topics: 18
Total Posts: 165
I haven't used a blanket but here's a link to some dimensions and temps for different woods. Google is your friend :)

http://www.13thfret.com/articles/sidebending.html

Darren

Feb 11, 10 | 5:33 am
Freeman

Total Topics: 27
Total Posts: 668
I watched Charles Fox bend a couple of sides at the GAL conference (Fox is the inventor of the Fox bending machine that many shops use) and he cracked one. He sort of grinned at the audience and said "yup, that happens..."

I can't comment on your questions - I still have my sides bent because so far I haven't wanted to invest in the equipment or run the risks.


Feb 11, 10 | 5:50 am
Ken Cierp

Total Topics: 58
Total Posts: 2262
Place a wet rag on the pipe (keep it damp), use a thin SS or aluminum backer on the top side. Were leather gloves and keep steady preasure on as much of the apex of the bend as possible. Think in terms of bending about an inch of the curve a time, then go back and refine the curve. I do not want to discourage -- but this pipe bending process takes time no matter what your skill level. Wrapping the side in foil is a hassle.

Ken

Kenneth Michael Guitars est. 1978

Feb 11, 10 | 5:55 am
Ken Cierp

Total Topics: 58
Total Posts: 2262
If I miss read this and it applies to a Fox Bender or form bender -- you can do a search here and find more info. At any rate bending with out backing slats is the road to problems.

Ken

Feb 11, 10 | 5:59 am
dviss

Total Topics: 18
Total Posts: 165
Is there a place where one might get these thin stainless steel slats locally? IE not at lmi/stewmac?

Feb 11, 10 | 6:44 am
Ken Cierp

Total Topics: 58
Total Posts: 2262
Use .025 or so aluminum --- that what is on our production benders except the the special cutaway machine which uses extreme tension. You can get it from McMaster Carr or even Tractor supply. The Heavy SS sold by LMII and others is too thick and very difficult handle and frankly a waste of money -- we have bent countless set using the aluminum sheet.

Ken

Kenneth Michael Guitars est. 1978

Feb 11, 10 | 6:56 am
Ken Cierp

Total Topics: 58
Total Posts: 2262
We get our thin SS from these guys

http://cgi.ebay.com/SS-5-STAINLESS-STEEL-SHIM-STOCK_W0QQitemZ300352648393QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item45ee69b4c9

Ken

Feb 11, 10 | 7:00 am
dviss

Total Topics: 18
Total Posts: 165
Thanks Ken, there's a Tractor Supply close, I'll check them out.

Feb 11, 10 | 7:05 am
Running Dog

Total Topics: 1
Total Posts: 103
Most local sheet metal suppliers will have thin stainless in stock and can easily cut it to size. You'll want to smooth the edges and round the corners. I used to get my slats, 6" X 36" polished stainless, four or six at a time for around $12 each (plus a 6-pack to cover the cutter's time). Haven't used aluminum but I agree with Ken that more flexible is better.

Feb 11, 10 | 8:39 am
Ken Cierp

Total Topics: 58
Total Posts: 2262
Nothing ruins your/my day more then snapping a side in the bender, so I try to continually improve the process -- the photos show that we use a solid mold, heated from the inside, two layers of .007" SS spring steel and a heat blanket on the out side of the wood primarily for the waist curve -- saving one set of Koa covers the cost.




Feb 11, 10 | 10:35 am
Ken Hundley

Total Topics: 40
Total Posts: 2169
Mine is heated strictly with 300 watt lightbulbs. I use a peice of duct sheet metal on top and on bottom of the wood, and it is spritzed then wrapped in foil before I bend. I have only cracked in the tight cutaway bend on some wood that might have been thicker than it should be for that side.

Feb 11, 10 | 2:48 pm
Ken Cierp

Total Topics: 58
Total Posts: 2262
Yep -- large light bulbs do a fine job, heat is heat, been using them for years. I also have used the galvinized sheet metal --- If using that, I'd say it is very important to wrap the side with parchment paper or foil ---- some woods will react with the zinc on the metal and discolor the wood -- I've see black, green and blue stains on various materials.

It is important to remember however, that the compression when bending a curve is on the inside --- so that is where the heat is required. Our operation like Taylor's is two step, waist curve first (heat on the inside), then the upper and lower bouts (heat on the inside).

Ken

Kenneth Michael Guitars est. 1978

Feb 12, 10 | 4:44 am
Freeman

Total Topics: 27
Total Posts: 668
saw this, don't know if there is anything here that helps

http://www.mimf.com/cgi-bin/WebX?50@211.BdKDa6XuFIJ.0@.2cb6c4ae/0

Feb 12, 10 | 8:05 am
Ken Hundley

Total Topics: 40
Total Posts: 2169
I think the heat blanket would help me in the cutaway area...such a tight curve with no heat on the outside. I also do it as a two step, Ken, and whole heartedly agree with the reaction comment as well.

On a side note....with a wood like padauk, or another brightly colored wood that is fairly even-toned, do not let it over cook. If possible, in your cook-in mode, turn the heat down. Once its bent, you really don't need a lot of heat afterwards....part of the key to prevent spring back is a slow cool-down. Let it cool in shape, and it will be virtually perfect.

Overheating causes some of the oils to leach out of the wood and blacken the pores, and cause discoloration as the wood changes. These seem like the normal surface discoloration you would see with any wood, but with padauk, and possibly bloodwood and purpleheart, the discoloration goes deep enough that you risk sanding through trying to get rid of it.

Feb 12, 10 | 9:53 am
DanB

Total Topics: 50
Total Posts: 272
Well, today I bent the Ovangkol sides to an OM shape and it went incredibly smooth. The difference was those metal pieces to sandwich the wood with. I had cut 5 inch wide strips of aluminum roof flashing and used that for it. Sprayed each side with water, put it inbetween the aluminum strips, put the blanket on top and let it heat up.

I also watched my heat temp so I didn't over cook it again, the first "trial" set of sides I bent was extremely useful because I found out what could go wrong. I've got both sides in the guitar mold right now clamped up so they don't try to go back to their old shape, I didn't really trust them to keep the new shape on their own for a few days, so they'll be clamped until I do something with them.

Dan

Feb 13, 10 | 7:13 pm



Deprecated: Function eregi() is deprecated in /home/bluescreek/domains/kitguitars/pm/lib/member.fns.php on line 2298

You must be a registered and logged in member to post in this forum