Bendmaster BIG block
+4
Westbone
DuoFuzz
Barry
Steve777
8 posters
Page 1 of 1
Bendmaster BIG block
Some time during the early 80's I had a thru neck custom electric made for me by Rob Armstrong of Coventry. While we were developing the design, we decided to insert a brass block just below the bridge and tail piece and mount those components through the mahogany top and into the block. Needless to say, the sustain was and still is impressive. If memory serves me correctly, Rob used an oscilloscope and bench tested the sustain at nearly a minute.
From then on, I have always been wary of flimsy contact and securing points along a strings length.
Now, fast forward to recent posts. One talked about the importance of the neck pocket and the securing bolts / screws. Another which intrigued me, was someone who had a stripped securing hole on a bendmaster deluxe sustain block. I think both John and I came up with some suggestions including making a new one out of brass.
Having noticed that aftermarket big sustain blocks made in brass are the fashion now for Floyds and Fenders, I decided to see if I could design one for the BM Deluxe fitted as OEM equipment to my Genesis II. Following some of the reviews of these Floyd blocks, I could reasonably expect an increase in sustain and increase in the mid tonal range over the pot metal sustain block. Plus, these brass blocks are selling anywhere from £25 to £50 here in the UK. So costing had to appreciated.
After taking all the measurements I needed with the BM in situ, I decided that I could safely increase the thickness of the block from 7mm to 13mm (I/2 inch). I then , after some searching, found a small, brass and metal stockist in Birmingham who sold me 4 rough cut blocks for £16. I say rough cut but actually they were pretty well spot on and only needed a modicum of fettling with a fine file and a square.
I had determined that the new block could be safely moved back towards the neck by 1mm thus meaning the six string grooves could be shallower taking into account thickness of the block. After scribing out and centre punching the location of each of the three securing holes, I drilled three holes 3.3mm diameter and 25mm deep to account for the point on the end of the tap. You'll notice that the original screws are short at 8mm and I felt that a longer screw would give a better purchase. I used 20mm stainless steel countersunk socket head screws primarily because I could then use the the wrench on the back of neck. Less tools to worry about.
All went well on Block number 1 until the 4mm tap snapped in the last hole !! Bugger ! Start again ...
This time I bought a HSS tap instead of one made from carbon steel and it went through the brass like butter. I then turned my attention to the BM plate, flipped it over and ran a straight edge across the three holes that would mate with the block. Because the BM plate was pressed out, each of the holes had deformed and created slight domes, therefore, there had never been solid contact between the OEM block and the plate. I would imagine that all our guitars are like this. Rather than file the chrome away, I simply countersunk the three hole in the brass block to give the optimum contact with the BM plate when screwed up.
I then assembled the block onto the BM and scribed out the string grooves from the top using the BM as a template. I then took it apart and using the scrap block and the new block made a sandwich and put them in the pillar drill vice. After some careful lining up, I drilled exactly in between each block thus leaving me with six semi circular grooves. Job done
All that was left to do was mark out and drill the five spring holes on the bottom, polish the block off using fine wet and dry, and re-assemble it all back into the Genesis. Perfect fit. Looking at it now, with the trem arm fully depressed, I could of put a thicker block in there, possibly up to 20mm.
And how does it sound? Well the sustain has definitely gone up and the mids seem (to my ears) a little more pronounced. Its subtle but I haven't had chance as yet to crank up the amp to a suitable volume. I suspect because of other factors on the Genesis, ie Alnico V pickups and a tone circuit with inductors to warm the sound, that the results aren't so staggering on this guitar. Alnico's are warmer than Ceramics. However, on a Spectrum with MMK 45 ceramic Pups which can be described as hard / harsh in comparison to Alnico's, I could quite imagine that the mids would then be more pronounced.
And finally, the good thing about this exercise is that everything is reversible. Oh ..one further measurement, on my post offices digital scales, the pot metal block, inc screws, came in at 128 grams whilst the brass block came in at 272 grams inc screws. Mass = Sustain.
All the Best, Steve
And here are the results >
[IMG]https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0822.jpg[/IMG
![Bendmaster - Bendmaster BIG block Imgp0823](https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0823.jpg)
![Bendmaster - Bendmaster BIG block Imgp0824](https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0824.jpg)
![Bendmaster - Bendmaster BIG block Imgp0825](https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0825.jpg)
![Bendmaster - Bendmaster BIG block Imgp0826](https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0826.jpg)
![Bendmaster - Bendmaster BIG block Imgp0827](https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0827.jpg)
![Bendmaster - Bendmaster BIG block Imgp0828](https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0828.jpg)
![Bendmaster - Bendmaster BIG block Imgp0830](https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0830.jpg)
![Bendmaster - Bendmaster BIG block Imgp0834](https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0834.jpg)
From then on, I have always been wary of flimsy contact and securing points along a strings length.
Now, fast forward to recent posts. One talked about the importance of the neck pocket and the securing bolts / screws. Another which intrigued me, was someone who had a stripped securing hole on a bendmaster deluxe sustain block. I think both John and I came up with some suggestions including making a new one out of brass.
Having noticed that aftermarket big sustain blocks made in brass are the fashion now for Floyds and Fenders, I decided to see if I could design one for the BM Deluxe fitted as OEM equipment to my Genesis II. Following some of the reviews of these Floyd blocks, I could reasonably expect an increase in sustain and increase in the mid tonal range over the pot metal sustain block. Plus, these brass blocks are selling anywhere from £25 to £50 here in the UK. So costing had to appreciated.
After taking all the measurements I needed with the BM in situ, I decided that I could safely increase the thickness of the block from 7mm to 13mm (I/2 inch). I then , after some searching, found a small, brass and metal stockist in Birmingham who sold me 4 rough cut blocks for £16. I say rough cut but actually they were pretty well spot on and only needed a modicum of fettling with a fine file and a square.
I had determined that the new block could be safely moved back towards the neck by 1mm thus meaning the six string grooves could be shallower taking into account thickness of the block. After scribing out and centre punching the location of each of the three securing holes, I drilled three holes 3.3mm diameter and 25mm deep to account for the point on the end of the tap. You'll notice that the original screws are short at 8mm and I felt that a longer screw would give a better purchase. I used 20mm stainless steel countersunk socket head screws primarily because I could then use the the wrench on the back of neck. Less tools to worry about.
All went well on Block number 1 until the 4mm tap snapped in the last hole !! Bugger ! Start again ...
This time I bought a HSS tap instead of one made from carbon steel and it went through the brass like butter. I then turned my attention to the BM plate, flipped it over and ran a straight edge across the three holes that would mate with the block. Because the BM plate was pressed out, each of the holes had deformed and created slight domes, therefore, there had never been solid contact between the OEM block and the plate. I would imagine that all our guitars are like this. Rather than file the chrome away, I simply countersunk the three hole in the brass block to give the optimum contact with the BM plate when screwed up.
I then assembled the block onto the BM and scribed out the string grooves from the top using the BM as a template. I then took it apart and using the scrap block and the new block made a sandwich and put them in the pillar drill vice. After some careful lining up, I drilled exactly in between each block thus leaving me with six semi circular grooves. Job done
All that was left to do was mark out and drill the five spring holes on the bottom, polish the block off using fine wet and dry, and re-assemble it all back into the Genesis. Perfect fit. Looking at it now, with the trem arm fully depressed, I could of put a thicker block in there, possibly up to 20mm.
And how does it sound? Well the sustain has definitely gone up and the mids seem (to my ears) a little more pronounced. Its subtle but I haven't had chance as yet to crank up the amp to a suitable volume. I suspect because of other factors on the Genesis, ie Alnico V pickups and a tone circuit with inductors to warm the sound, that the results aren't so staggering on this guitar. Alnico's are warmer than Ceramics. However, on a Spectrum with MMK 45 ceramic Pups which can be described as hard / harsh in comparison to Alnico's, I could quite imagine that the mids would then be more pronounced.
And finally, the good thing about this exercise is that everything is reversible. Oh ..one further measurement, on my post offices digital scales, the pot metal block, inc screws, came in at 128 grams whilst the brass block came in at 272 grams inc screws. Mass = Sustain.
All the Best, Steve
And here are the results >
[IMG]https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0822.jpg[/IMG
![Bendmaster - Bendmaster BIG block Imgp0823](https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0823.jpg)
![Bendmaster - Bendmaster BIG block Imgp0824](https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0824.jpg)
![Bendmaster - Bendmaster BIG block Imgp0825](https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0825.jpg)
![Bendmaster - Bendmaster BIG block Imgp0826](https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0826.jpg)
![Bendmaster - Bendmaster BIG block Imgp0827](https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0827.jpg)
![Bendmaster - Bendmaster BIG block Imgp0828](https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0828.jpg)
![Bendmaster - Bendmaster BIG block Imgp0830](https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0830.jpg)
![Bendmaster - Bendmaster BIG block Imgp0834](https://2img.net/h/i1238.photobucket.com/albums/ff498/Stevesj777/imgp0834.jpg)
Steve777- Senior Member
- Number of posts : 356
Age : 67
Location : Coventry, UK
Registration date : 2008-10-14
Re: Bendmaster BIG block
WOW!
FAN-BLOODY-TASTIC Steve!!
I wish I had your skill and shop tools to mess about like this.
Just a great job....are you taking orders??
FAN-BLOODY-TASTIC Steve!!
![cheers](https://2img.net/i/fa/i/smiles/icon_cheers.png)
I wish I had your skill and shop tools to mess about like this.
Just a great job....are you taking orders??
![lol!](https://2img.net/i/fa/i/smiles/lol.gif)
_________________
"A little song. A little dance. A little seltzer down your pants." -Chuckles the Clown
![Bendmaster - Bendmaster BIG block Guitar10](https://i.servimg.com/u/f62/19/59/66/02/guitar10.gif)
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Re: Bendmaster BIG block
Awesome work there Steve. I've made some steel blocks for my old Squier Strats back when I had a job working in a toolroom machine shop of a local diecasting factory. I would love to do some more stuff like that, but I don't have access to gear like that now!
DAN.
![Sad](https://2img.net/i/fa/i/smiles/icon_sad.gif)
DAN.
DuoFuzz- Senior Member
- Number of posts : 640
Age : 47
Location : Newcastle Upon Tyne, U.K.
Registration date : 2009-05-18
Re: Bendmaster BIG block
That's a neat job. Just out of interest. What would it sound like if the strings were anchoured in the block, as per a strat. Just a thought. As I noticed a marked differance fitting a "big" block in my strat. Not brass though.
Top job man.
Just realized the fine tuners wouldn't work with my idea, duh.
Top job man.
Just realized the fine tuners wouldn't work with my idea, duh.
![Embarassed](https://2img.net/i/fa/i/smiles/icon_redface.gif)
Last edited by Westbone on Thu Sep 02, 2010 2:42 pm; edited 1 time in total
Re: Bendmaster BIG block
Brilliant, Steve; I'm impressed!! I've gotta agree that Mass = sustain; my Electra had a massive block which I couldn't use as it was part of the bridge casting and the front edge of the strat-style bridge was munted but by all accounts, Electras with this bridge sustain for England!!
That's a very elegant piece of work; well done!!
That's a very elegant piece of work; well done!!
corsair- Senior Member
- Number of posts : 6330
Age : 65
Location : Mount Hunter, NSW, Australia
Registration date : 2008-04-08
Re: Bendmaster BIG block
Beautiful piece of work!
And thank you for sharing the pics and the process.![Smile](https://2img.net/i/fa/i/smiles/icon_smile.gif)
![Cool](https://2img.net/i/fa/i/smiles/icon_cool.gif)
And thank you for sharing the pics and the process.
![Smile](https://2img.net/i/fa/i/smiles/icon_smile.gif)
Re: Bendmaster BIG block
WOW, very nice work Steve!!! Great detail in the pix...
Lunatech78- Registered Member
- Number of posts : 13
Location : Midwest US
Registration date : 2010-07-27
Re: Bendmaster BIG block
Why, thanks guys for the positive comments!
At present, I'm just pondering whether to make a tremsetter in brass that has permanent contact with the sustain block when at rest. Sort of closing the loop. Hummmm !
And no Barry, I don't plan to go into production although I would get them made if there was enough demand. Still, nice thought.
I might have look at the earlier BM on my Dim IV. I've never been partial to the the trem arm attachment on this Trem . I much prefer an arm with a collar on.
Have good weekend
At present, I'm just pondering whether to make a tremsetter in brass that has permanent contact with the sustain block when at rest. Sort of closing the loop. Hummmm !
And no Barry, I don't plan to go into production although I would get them made if there was enough demand. Still, nice thought.
I might have look at the earlier BM on my Dim IV. I've never been partial to the the trem arm attachment on this Trem . I much prefer an arm with a collar on.
Have good weekend
Steve777- Senior Member
- Number of posts : 356
Age : 67
Location : Coventry, UK
Registration date : 2008-10-14
Re: Bendmaster BIG block
I'd certainly be interested in a brass block.
My earlier comment on stringing like a strat block. This would work on the Precision trem tailpiece, as per the Prestige 117, 227 trems and various other models. If this is possible I'd be very interested.
Here's a pic of the trem I'm referring to.
https://2img.net/r/ihimizer/img801/609/p9041260.jpg
https://2img.net/r/ihimizer/img801/7155/p9041259.jpg
![Bendmaster - Bendmaster BIG block P9041260.th](https://2img.net/r/ihimizer/img801/609/p9041260.th.jpg)
![Bendmaster - Bendmaster BIG block P9041259.th](https://2img.net/r/ihimizer/img801/7155/p9041259.th.jpg)
I'll measure it up to a bendmaster deluxe, although it does look pretty similar.
Cheers.
My earlier comment on stringing like a strat block. This would work on the Precision trem tailpiece, as per the Prestige 117, 227 trems and various other models. If this is possible I'd be very interested.
Here's a pic of the trem I'm referring to.
https://2img.net/r/ihimizer/img801/609/p9041260.jpg
https://2img.net/r/ihimizer/img801/7155/p9041259.jpg
![Bendmaster - Bendmaster BIG block P9041260.th](https://2img.net/r/ihimizer/img801/609/p9041260.th.jpg)
![Bendmaster - Bendmaster BIG block P9041259.th](https://2img.net/r/ihimizer/img801/7155/p9041259.th.jpg)
I'll measure it up to a bendmaster deluxe, although it does look pretty similar.
Cheers.
Re: Bendmaster BIG block
Steve.
I´m just gonna chime in with the others.
Good job!
That there feeds my distorted mind to the next step...
Why doesn´t one laser or watercut tremplates out of toolroom grade steel to be done with wear of the knives et al once and for all?
Likewise,the fulcrum bolts that go into the body...why does these HAVE to be made from el-cheapo grade materials that is just nickle plated?
What about grade 12.9 or NAS/AN stuff?
I mean..we´re talking two friggin bolts here..(thinkin- cost)
I´m just gonna chime in with the others.
Good job!
That there feeds my distorted mind to the next step...
Why doesn´t one laser or watercut tremplates out of toolroom grade steel to be done with wear of the knives et al once and for all?
Likewise,the fulcrum bolts that go into the body...why does these HAVE to be made from el-cheapo grade materials that is just nickle plated?
What about grade 12.9 or NAS/AN stuff?
I mean..we´re talking two friggin bolts here..(thinkin- cost)
Racing- Hero, Legend, and all round good guy
- Number of posts : 194
Age : 59
Registration date : 2009-02-27
Re: Bendmaster BIG block
Racing wrote:.... to be done with wear of the knives et al once and for all?
Likewise,the fulcrum bolts that go into the body...why does these HAVE to be made from el-cheapo grade materials that is just nickle plated?
The knife edges on all of my Bendmasters are fine; still as good as gold and the fulcrum bolts seem a reasonable grade of steel as well; I only did a spark test but they were better than I'd thought they'd be!! I mean, I know there's a cost factor here in manufacture but I don't think TP would have sanctioned shoddy steel in his bridge design....
corsair- Senior Member
- Number of posts : 6330
Age : 65
Location : Mount Hunter, NSW, Australia
Registration date : 2008-04-08
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» Stripped Bendmaster sustain block
» Bendmaster FT
» TRADE: Chrome Bendmaster deluxe for black Bendmaster deluxe
» FT brass trem block
» Sustain block....
» Bendmaster FT
» TRADE: Chrome Bendmaster deluxe for black Bendmaster deluxe
» FT brass trem block
» Sustain block....
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