mattbrailsford
United Kingdom
Asked
— Edited
For those who may not have read my Omni2k wheels thread, I am now offering reproduction tires for sale for the Omnibot Jr, Omnibot and Omnibot 2000 robots. Tires are sold in sets, available in a variety of colours and are available worldwide.
Please checkout my ebay listing for details.
Reproduction Tomy Omnibot Jr/Omnibot/Omnibot 2000 robot tire sets
Just wanted to say I got a set of nice blue Tires for my Omnibot from Matt.They are awesome very well made and an easy fit
It has transformed by Robot and now Omni is smoothly rolling around the house
Cheers Matt
They look awesome too!
Are these tires "hard" or softer rubber with good grip. If they have more grip I could be interested
Hey Josh, these are made of a 60 Shore polyurethane rubber so are a bit harder than the silicone you recommended, so should be a little more hard wearing (Car tires are around 65 shore from what I could understand). I went with 60 shore as it still has a little bit of flex to each tread on the tire so should give a nice grip, whilst being really quite strong with not too much give that they slip off (I do have some 70 shore if you want even stiffer ones for outdoor robots, but it tends to come out a bit smoother, so not as suitable for indoor use I would say).
Good news, I've managed to find a grey pigment that works and it's pretty darn close to the original if you ask me
The cog is made of rubber using the pigment, whilst the band at the bottom, is an original tire (turned inside out so I could verify the colour easier).
Thats awesome..... so your making rubber gears now? Or is that a harder plastic to make back up parts ? I made some robie jr blue tracks a couple nights ago. I roll mine out flat to cast them.
Niice! I'm experimenting with a different blue as we speak. Whilst the ones I made for winstn60 are blue, they aren't as bright as I would like them (like yours). I'll put a picture up when they are done.
The gear was just from a test mould I made casting the middle arm gear of the Omni2k to see if I could create some backups. I tried it with a solid casting resin, but it was just too brittle. So I used it to create the test casting in the grey as I wasn't sure if the pigment would work, so wanted to test it in a mould I wasn't too bothered about
Ok, here's the blue test
It's better, but I would still like it a bit lighter (it's kind of a royal blue). I think the problem I'm having is that the liquid rubber is naturally a browny / yellow colour, so I think this is darkening it up. I have some white I could mix in, but the goal is to find a pigment that works well on it's own so that I don't have to measure stuff and I can get a consistent colouring.