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Thread: Punch 12mm hole in 8-10mm steel
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8th Jan 2020, 12:29 AM #151Most Valued Member
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I was going to either machine some beefy steel spacers to go between the upper plate and top of drawbar and between lower drawbar and lower plate i could make these on the late but even just using the correct thickness of plate would be an option too just i would need to hand drill instead of drilling it on the lathe
I'll try get pics now
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8th Jan 2020, 12:40 AM #152Most Valued Member
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I want to leave the drawbar on the bottom plate as pictured as my first steel angle iron cross member is bolted to the bottom of the aluminium i beam
(Top plate not finished 2 more bolts/holes needed)
(Bottom plate not cut to shape yet like top plate)
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8th Jan 2020, 04:04 AM #153Most Valued Member
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You guys will probably flame me for using the rusty steel... it was suppose to be a quick build 90% bolt together 10% welding design i pretty much have 90-95% all parts of the trailer its just getting it all together so much revolves around the steel getting galvanized it all cost money and needing special parts like the Velox Behive Disc etc.. plus i have had the engine to repair which is now completed and also the boat taking ip a bit of my spare cash
The trailer is the next to get finished, its mostly drilling and bolting together all the welding is almost done i just need to stick weld the axle blocks and brake mounts which are critical but in my case my car braked fine towing the boat home no brakes seller sprung that on me after i handed over the cash 2 years ago...
Got in over my head tho thought i could build a 6 meter aluminium trailer for $2000 salvaging my old trailer, im at $2500 now and will be spending another $700-$1000 in the next few weeks
For anyone wondering why i didnt just buy the expensive drill set yet spend so much on this trailer build i had the cash 12 months ago that bought most of the trailer parts just to clear that up hence i bought the lathe and unimig razor 200 mig..
Money is usually tighter than a mouses butt now tho so need to finish this trailer while i have some money coming in
Let me say debt sucks lol
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8th Jan 2020, 06:18 AM #154
Hi Gazza,
Why not simply remove the bottom plate, take the top plate and clamp them together. Using the bottom one as a pattern, mark and drill as needed. No need for anything more than a standard length drill.
Now if you have properly squared up and tightened that press drill table, you can use it to drill your holes in the steel plate. Once you have done that you can bolt both plates together and file them or cut them to match each other. At this point you can unfasten them and then can bolt them in place on your trailer. If you have done it properly they should not only fit but should be interchangeable between top and bottom.
As far as galvanising is concerned I would just buy a spray can of cold galvanising paint.Best Regards:
Baron J.
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8th Jan 2020, 07:35 AM #155
Hi guys
Just a quick point about sizing pilot holes for drill bits.
I am not sure if the point has been made already but I am short of time ATM and don't have time to go back and read the whole thread;
I was always taught that the pilot hole diameter must always be just a fraction larger than chisel point of the larger diameter drill.
This allows the cutting edges of the bigger drill to self center.
It has always worked like a charm for me with hand and bench drilling machines.
My apologies if someone has already included this.
Racing like stink to get the rubbish bin out before the garbo truck comes.
Grahame
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8th Jan 2020, 07:53 AM #156Most Valued Member
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Apart from the top and bottom plates, what holds the drawbar in the frame? Is it an extendable drawbar?
That whole front end looks pretty weak and under designed with an awful lot of load going through the flanges of the aluminium. If it is as it appears, it will fail.
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8th Jan 2020, 04:39 PM #157Most Valued Member
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This is how some are built at the Y section https://www.ebay.com.au/i/3324098395...gaAtRtEALw_wcB
Thanks i will fix the drill press tighten her up and drill the pieces on that
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8th Jan 2020, 08:19 PM #158Most Valued Member
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$2295 for a commercially made unit, versus the 3k+ you’ll have in this one... I get sometimes it’s appropriate to spend the money to learn, but sometimes you gotta know when to play the cards and sometimes you have to know when to throw them in and leave the table. Yeah you’re learning but there are way cheaper ways to learn how to drill a hole and sharpen drill bits.
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8th Jan 2020, 09:15 PM #159Most Valued Member
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Somehow I don't think that particular trailer is $2295, it says FROM!!!
As you've already found out, the material costs that much alone.
KrynTo grow old is mandatory, growing up is optional.
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8th Jan 2020, 09:21 PM #160Most Valued Member
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Racing, my trailer is about 6.2 meters to buy one that size professionally made from Australian aluminium would cost around $7,000 or around $5,000 imported from China
Mine is made from aluminium from Capral Aluminium the aluminium outside rails and cross members cost me almost $1,000 alone
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8th Jan 2020, 09:35 PM #161Most Valued Member
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I must admit i started early last year around january to build this trailer i put a side $2,000 to build the trailer with salvaging parts from my old trailer but as the build progressed i wanted all new parts on the trailer and i ran out of funds, i put it on the back burner after around six months in because i had to buy the expensive stuff at this point that were the 4 custom spring hanger u bolts at $180 plus delivery and galvanizing cost, the 2 front velox deep disc hubs $240, the galvanizing of all the steel my spring hangers are made of 10mm angle iron which both sides weigh 45kg i estimate i have around 70kg or just under of steel to galvanize at $4 per kilo of weight
but now i am progressing i should have all the expensive stuff covered this month or next month i just need all the steel ready to galvanize so it means i need to pull my finger out and get cranking
here is the trailer at around six months in with C clamps holding the spring hangers on and everything just sitting in place nothing drilled or bolted down
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8th Jan 2020, 09:44 PM #162Most Valued Member
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I have plenty of build pics but here's a few last ones, Trailer will have 4x 9inch wheels and long bed bunks made from 190x75mm treated pine if i can find that thickness so it adds some rigidness
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9th Jan 2020, 11:27 AM #163Most Valued Member
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9th Jan 2020, 12:33 PM #164Most Valued Member
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Racing haha yeah aluminium trailers carry a massive price tag and most are bolt together quiet strange really
I can see the money in a steel fabricated trailer all the welding than galvanizing on top which cost a absolute fortune
I personally think a few of the companies making aluminium trailers like to charge a premium bevause they can
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9th Jan 2020, 12:36 PM #165Most Valued Member
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Measured my trailer last night i totally forgot how long i made it, measured 7.06 meters i recall not wanting to cut my expensive i beams, i also kept the bend very light from memory i bent them 8.1 degrees
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