|Project by bushmaster||posted 06-24-2016 02:50 AM||1299 views||3 times favorited||8 comments|
One of the main reaspons I built the SCRAP IRON LATHE was to be able to do larger spindles and of course hollow forms. So far I managed to make the previous vases that I posted by using the regular tool I had on hand. It has taken me awhile to find the time to design and make a system with materials I had on hand. The project was designed around a bar I steel I found in my scrap pile, it was a stack I had tied our horse to long ago. A ver unusual bar, square rounded corners that had been a rock drill, odd because they are always hexonagal. Notch the end for a clamp to secure a 5/16 lathe bits that I bought by mistake. Run the bare through two rollers to stop it from twisting, and support the end on a tool rest. I found some wringer washer rollers but settled on two rollers from my 20 inch planner. Wasn’t using them as I had a plywood and arborite platform to reduce snipe. So here are the basic parts. 1 inch pipe and nylon bearing to hold the rollers,
The drill rod is very hard so I had a very hard time drilling and tapping holes for the 8—32 threads for the hold down clamp.
To make the bolt threads for the tool rest I drilled a plug of metal off center as the 1 inch pipe wall thickness is not that thick.
For greater control I drilled and tapped holes on the tool rest and bolted two ball bearing to it. on pushes the bar against the bearings as you are boring, smoother cuts and better control.
The first time I used it was with the lathe bit, rough cutting and left ridges, I thought it would be great to have a scraper so back to the scrap iron shed. Luck would have it . I found a couple a planner blades from a sawmill site, high speed steel and 5/16 thick.
By the time I was finished this project I made more holder and more scrapers to use in the future,
And that is about it except for the finished project
I am quite happy with the system, had so much fine I cut the first vase in half from the inside, guess a lazer system next, seems to me the steady rest would be in the way?????
I made several videos while I was doing this project.
The first deals with the design in more detail, close up of the parts and a short demonstration useing the lathe bit.
The second is and encore presentation dealing with the scraper tools as I went along, demo using the scrapper tool, sanding and finished project. You may find some ideas.
I hope you found this project interesting, I found it a challenge, using the materials I had on hand. I finised today another addition to the lathe, will try it out and post it next week. Because of the complexity of it I acuall drew a plan.
Thanks for looking and watching the videos, comment appreciated.
-- Brian - Hazelton, British Columbia