Author Topic: Make my own  (Read 655 times)

Rob Templin

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Re: Make my own
« Reply #15 on: 14 February, 2020, 02:10:56 pm »
Love anything home made Cobbadog. Even steel wheels. It's too easy to just buy stuff. Or chuck out broken items and buy new. Years ago you could at least have ago at repairing stuff and often due to lack of funds you had to do your own repairs anyway.

Currently I am building a milling machine and a lathe. Yes I can buy cheap second hand ones although SWMBO would balk at me doing so. There are two reasons to build.

1. It is a great challenge,

2. The money that is spent is spread over a period of time.

Mostly I am using scrap items from mates scrap bins. Parts off an old heavy industrial drill, gears from a car and a large old photo copier. Heavy steel from a mates major high rise project, and so on.
I have purchased the x- y table, a mill vice, the electric motors, lathe chuck, and a secondhand lathe head that was cheaper than the bearings and shaft if I made new one . I have spent many hours planning and made a few errors along the way. Work is more than half finished on the mill. I have the bed and legs done on the lathe. I have also almost finished a 6 foot bender to make the swarf tray for the lathe. Just need an electric oil pump and hydraulic rams for that ,which I will buy, but all the rest was scrap steel. (I do have two second hand rams but they are different sizes and might not push evenly with out trying to balance them.)

Just wish I wasn't so old as I have a number of other homemade machine projects in mind and probably limited time left.

cobbadog

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Re: Make my own
« Reply #16 on: 14 February, 2020, 10:05:56 pm »
Nice one Rob,
I knew a bloke that started to build his own metal lathe and from scrap too. He made great progress and you couln't fault what was done. It was at the stage where he had scraped the bed dead level head stock was complete and his welding technique of a series of short runs at a time and at opposite sides and ends left no distortion and he was using an arc welder. Unfortunately bad health took him before he got it finished.
Keep up the good work.
Cheers, John & Dee. Coopernook. NSW.

Rob Templin

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Re: Make my own
« Reply #17 on: 15 February, 2020, 07:31:58 am »
To prevent buckling from heat I have decided to tap and screw everything. That means dozens of holes so far. I clamp the pieces in place and use a small pilot drill. Then the larger drills. But still had some that didn't quite line up. I guess my old and cheap Chinese drill press has some slop in the quill. But counter sunk screws pull it down right even if a couple of hole are a bit bigger now. One problem is the weight of the pieces I have to keep lifting and turning over etc. I'll need my engine hoist or endless chain soon to lift stuff. But heavier is better with these machines I think?

cobbadog

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Re: Make my own
« Reply #18 on: 21 February, 2020, 09:27:49 pm »
Today I picked up the last of the hardwood timber I need to make the transporter along with some coach bolts to hold it together. I need to now make a few measurements so I can start cutting the rails to length.
Cheers, John & Dee. Coopernook. NSW.

cobbadog

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Re: Make my own
« Reply #19 on: 22 February, 2020, 04:05:38 pm »
Had a late start to the day of play with visitors ll morning so this afternoon I spent time mentally designing the transporter and taking measurements. So with all that kind of stuck in my head the side rails have been cut to length at 1.000 metre. Tomorrow the 3 cross sections will be cut and marked out for drilling and with a slight change to my original idea I am now half the amount of coach bolts short to bolt it all together but that gives me time to start stripping an engine down as well. The timber is 125mm x 75mm hardwood fence post, bloody heavy.
Cheers, John & Dee. Coopernook. NSW.

cobbadog

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Re: Make my own
« Reply #20 on: 24 February, 2020, 04:24:05 pm »
This is where I got to today. Main rails and 3 cross members are bolted in solid and 2 axle support also cut to length and then the 25mm bright steel axles will extend past the ends of the timber. Will pick up some plate for the turntable so the timber will run smoothly when turning and pivot on a 20mm  HT bolt. I will slightly recess the axles into the supports and plate them into position as well.
Cheers, John & Dee. Coopernook. NSW.

cobbadog

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Re: Make my own
« Reply #21 on: 25 February, 2020, 01:57:54 pm »
No further progress today as


i went to work then realised that we had a power outage, yet again, and went back home to kick off the genset to keep the fridge n freezer nice and cold. So wasted more time back at work then back home again and too the GOAT (mower) for a walk over the long grass again even though it had only been 5 days since it last got hit. Only 2 hours to go until they switch it back on and then I need to do invoices and quotes, end of day.
Cheers, John & Dee. Coopernook. NSW.