Front mudguard/fender

SMBH · Post by **SMBH** » Tue Sep 15, 2015 2:05 pm

Modelman you are the man I wish I had half your ability to make things.

Well im good at making my home made beer and, and, and, ill check with the wife see what she says.

Joking apart that looks a nice bike and credit to you.

Seadog · Post by **Seadog** » Tue Sep 15, 2015 2:11 pm

Just outstanding work, Modelman. Well done.

modelman · Post by **modelman** » Thu Sep 24, 2015 9:24 am

Well boys & girls, I said that I 'cheated' & would reveal all, so here goes!!

No where near Mr flatheads workmanship in 'tin-bending', but I, on the other hand have a degree in cheat!!

I measured from the wheel-centre to the outside edge of what little of the front guard I had left.
Cut out formers, & made up a basic shape, took a contour of the fender, & made an alloy shape/form, which was pivoted from the radius-centre, hi-density pattern-making foam was cut-glued & then carved to the profile.

Sanded, filled & primed, guide-coated & rubbed down smooth, waxed, & layed-up with GRP, to make a mould, the fender was then layed up from the mould, turned out not too bad actually, but the best bit, I made 2, just in case I cocked it up, & I still have the mould to make more if need be!!

OK, so its GRP & not 'genuine' you got to look hard to realise it though!

I used 4mm stainless dome-headed capheads, penny-washers underneath & nyloc nuts, for the bracings & they look almost the same as the original rivets.

I'm toying with the idea of making Chain guards & side-covers as well.

SMBH · Post by **SMBH** » Thu Sep 24, 2015 11:13 am

Model man I worked some 40 years in fiberglass pattern making moulding including working for Screen and Plastics in Birmingham UK I worked on the BSA/Triumph 750 3cyl racer fairings seats also the Norton racer yellow tank and seat and the Vetter Tri 3 tank seat unit the one with the 3 pipes down the side and so many more.

Any way on my Triumph 5ta I have a fiberglass rear chain guard and number plate in some 40 years of owning it no one has spotted the items.
You have made a nice job of them well done did you use silver pigment in the gel coat or did you just spray it silver ? .

GMan put us onto a great silver rattle can Simoniz Wheel Silver Spray Paint it is acrylic and works well theN lacquer it.

G-Man · Post by **G-Man** » Thu Sep 24, 2015 11:21 am

Excellent!

I won't tell anyone that you cheated.... :-)

G

modelman wrote:Well boys & girls, I said that I 'cheated' & would reveal all, so here goes!!

No where near Mr flatheads workmanship in 'tin-bending', but I, on the other hand have a degree in cheat!!

I measured from the wheel-centre to the outside edge of what little of the front guard I had left.
Cut out formers, & made up a basic shape, took a contour of the fender, & made an alloy shape/form, which was pivoted from the radius-centre, hi-density pattern-making foam was cut-glued & then carved to the profile.

Sanded, filled & primed, guide-coated & rubbed down smooth, waxed, & layed-up with GRP, to make a mould, the fender was then layed up from the mould, turned out not too bad actually, but the best bit, I made 2, just in case I cocked it up, & I still have the mould to make more if need be!!

OK, so its GRP & not 'genuine' you got to look hard to realise it though!

I used 4mm stainless dome-headed capheads, penny-washers underneath & nyloc nuts, for the bracings & they look almost the same as the original rivets.

I'm toying with the idea of making Chain guards & side-covers as well.

flathead · Post by **flathead** » Thu Sep 24, 2015 2:20 pm

Modelman,

That's pretty cool.

Here's my secret....

https://www.facebook.com/1607624962/vid ... 414723416/

These are not Honda. They're for the Harley Hummers and K models.

We've probably done 1000 of these over the last 20 years. Getting the process down was one of the most difficult forming task I've ever encountered. It looks simple but is super tough to control and run consistently.

G-Man · Post by **G-Man** » Thu Sep 24, 2015 2:51 pm

Mark

Thanks for sharing that. I saw some similar video of a guy in India who went through quite a lot of the process and difficulties in doing vintage British fenders.

Great to see it happening. Is aluminium easier or harder? I would imagine that you get problems with work hardening? I worked at British Leyland for a while and it was apparent that it was harder to make some of the panels in aluminium rather than steel. Early Range Rovers had several steel panels because of that.

G

flathead wrote:Modelman,

That's pretty cool.

Here's my secret....

https://www.facebook.com/1607624962/vid ... 414723416/

These are not Honda. They're for the Harley Hummers and K models.

We've probably done 1000 of these over the last 20 years. Getting the process down was one of the most difficult forming task I've ever encountered. It looks simple but is super tough to control and run consistently.