ELECTRIC WHEELCHAIR DRIVE UNIT / FRONT (robolop design)

robolop46

New Member
Something about myself.

I've been in a wheelchair for 40 years, but life goes on. At the age of 20 I was told that a tumor was in my back. Of course I did not feel well for years because of that. But you can do 2 things, sit in a corner, or take life back. I opted for the 2nd. There is indeed still life in a wheelchair. It is what you want to make of it yourself. I have taken out as many as possible, and I think I have succeeded.
Due to the many strains on my shoulder, I had surgery on it. The doctor also told me that I had to take it easy. So I was not allowed to ride a normal hand bike anymore.
Before my surgery I bought a second hand electric drive unit.
After 6 months of rehabilitation, I started driving there, and I liked it.

This was my first e-bike. From now on I'm going to call it that.

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  • Top speed: 10 miles/hour (16.1 km/hour)
  • Range: 15 miles (24.1 kilometers)
  • Quick-release ball and socket "quickdock"
  • Fits most adult and pediatric manual wheelchairs
  • Adjustable handle bar height
  • 220 watt geared hub motor in front wheel
  • 24 volt 10 amp hour Lithium polymer battery
  • Offers reverse as well as forward
  • Dual Promax brakes, LED headlight, twist throttle
  • LCD display with speed and distance
  • Includes a bell and safety flag, optional basket on front
  • Weight: 33 pounds (15 kilograms)
  • Tire size: 12"(47-203)
I enjoyed it very much for 1 year. But soon I had it in my head to build one myself.
I may say that I am quite handy. I can work with polyester, carbon fiber, aluminum, etc. But I don't know anything about stainless steel machining and welding, and I don't have the materials and machines for that either. After consulting with Didier (a very good friend of mine, who is also in a wheelchair), he wanted to make the stainless steel part for me. He is an artist in that field for me.

We then consulted carefully and thought about what we were going to make. I first went looking for a front fork of a bicycle, but the tough model I wanted was way too long. Then I decided to buy Triple Tree Clampste from a pit bike.

Here you can see what Didier had in mind. He wanted the look of a suspension fork, which of course is not true. More about this later

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Machining the stainless steel

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