• We invite you to join UKWorkshop.
    Members can turn off viewing Ads!

Cat wheel

UKworkshop.co.uk

Help Support UKworkshop.co.uk:

Louise-Paisley

Established Member
Joined
14 Sep 2012
Messages
236
Reaction score
0
Location
Paisley, Scotland
Cat wheel is starting to take shape, unfortunately I snapped one half of the running surface :(

Got the first half glued into one of the rims, the other rim is dry fitted just to enable me to clamp it up.

My dirty little kerf cutting sled/ jig/ thingy works just fine, saves a boat load of work marking out and freehand cutting which ends up at pretty much any angle except 90 degrees!

http://www.youtube.com/watch?v=jIm1xIoHOm4
 

Attachments

Louise-Paisley

Established Member
Joined
14 Sep 2012
Messages
236
Reaction score
0
Location
Paisley, Scotland
JonnyD":35d8hnum said:
Looking good. This may help In the future if you make more of them it's a plywood which is bendy and will bend easily into that shape with no kerfing or having no end of filling and sanding to do

http://www.lathamtimber.co.uk/ProductDetail.418.html

Cheers

Jon
I just got a quote for a pallet of 46 sheets of 12mm bendy..

£100-30 per sheet! - I think I will waste 30 minutes a wheel kerfing £15 a sheet WBP LOL
 

Louise-Paisley

Established Member
Joined
14 Sep 2012
Messages
236
Reaction score
0
Location
Paisley, Scotland
JonnyD":3lgg8zcv said:
Looking good. This may help In the future if you make more of them it's a plywood which is bendy and will bend easily into that shape with no kerfing or having no end of filling and sanding to do

http://www.lathamtimber.co.uk/ProductDetail.418.html

Cheers

Jon
Have you used this material? I am assuming that along the grain it would be as strong as normal ply, so once glued into the grooves in the rim it would be pretty much solid?
 

Sheffield Tony

Ghost of the disenchanted
Joined
2 Aug 2012
Messages
2,078
Reaction score
89
Location
Bedfordshire
Ahh. Cat wheel. I was scratching my head because I wanted to read Cart wheel. Can you fit these things with a dynamo ? :lol:
 

Louise-Paisley

Established Member
Joined
14 Sep 2012
Messages
236
Reaction score
0
Location
Paisley, Scotland
Sheffield Tony":2dl5rudt said:
Ahh. Cat wheel. I was scratching my head because I wanted to read Cart wheel. Can you fit these things with a dynamo ? :lol:
It would not be a bad idea the speed my two bengals run around them LOLOL, maybe a belt drive system to drive power tools like a watermill LOLOL
 

JonnyD

Established Member
Joined
10 Mar 2008
Messages
1,173
Reaction score
5
Location
Lincolnshire
Louise-Paisley":2lhmttwh said:
JonnyD":2lhmttwh said:
Looking good. This may help In the future if you make more of them it's a plywood which is bendy and will bend easily into that shape with no kerfing or having no end of filling and sanding to do

http://www.lathamtimber.co.uk/ProductDetail.418.html

Cheers

Jon
Have you used this material? I am assuming that along the grain it would be as strong as normal ply, so once glued into the grooves in the rim it would be pretty much solid?
Hi yes I have used a fair bit of it mainly for curved doors and furniture. I imagine the 8mm stuff will be fine once glued into the rims. You might have to create a half lap where the ends meet and glue it together. Another option would be to laminate 2 bits of 3mm together and glue them together when inserting them into the rims. Once glued together the plywood is really rigid .

Cheers

Jon
 

Louise-Paisley

Established Member
Joined
14 Sep 2012
Messages
236
Reaction score
0
Location
Paisley, Scotland
JonnyD":2y40b06y said:
Louise-Paisley":2y40b06y said:
JonnyD":2y40b06y said:
Looking good. This may help In the future if you make more of them it's a plywood which is bendy and will bend easily into that shape with no kerfing or having no end of filling and sanding to do

http://www.lathamtimber.co.uk/ProductDetail.418.html

Cheers

Jon
Have you used this material? I am assuming that along the grain it would be as strong as normal ply, so once glued into the grooves in the rim it would be pretty much solid?
Hi yes I have used a fair bit of it mainly for curved doors and furniture. I imagine the 8mm stuff will be fine once glued into the rims. You might have to create a half lap where the ends meet and glue it together. Another option would be to laminate 2 bits of 3mm together and glue them together when inserting them into the rims. Once glued together the plywood is really rigid .

Cheers

Jon
Latham have a branch about 12 miles from me so I have reserved ten sheets of 8mm which we will collect Monday or Tuesday. I think 8mm should be strong enough when glued into the rims, do you happen to know the MBR of the 8mm?
 

Louise-Paisley

Established Member
Joined
14 Sep 2012
Messages
236
Reaction score
0
Location
Paisley, Scotland
Just for interest this is an autocad render of the wheel and base unit.

I designed it in 2d using inkscape originally but then tried out sketchup to design in 3d but soon got fed up with its limitations so thought I would yet again try to get my head around 3d in autocad and it is starting to sink in this time at last.

I should add it will be fully painted in real life but couldn't resist playing with wood textures in AC :)
 

Attachments

JonnyD

Established Member
Joined
10 Mar 2008
Messages
1,173
Reaction score
5
Location
Lincolnshire
The 8mm will bend quite tight I would think about 100mm radius or so

Cheers

Jon
 
Top