AUSJEEPOFFROAD.COM Jeep News Australia and New Zealand - View Single Post - Setting up for some basic fab work
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Old 25-03-2005
TJPete  TJPete is offline
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BC,

Marking Out the job your boily skills will have enabled you to mark out, square up, scribe where appropriate, chalk where appropriate and define your follow points in 2 dimensions. Therefore, you still require the basic tools and instruments you had back then - an engineers combination set, a decent scribe, a pin punch or three, ball-peen hammer, compass, verniers and so on.

Genuine English and American implements are nice and costly; there are some reasonable and cheap Chinese implements but you need to be careful as many, not all, are total kerap. Buy a really decent hack-saw and really decent bi-metal blades from 12tpi for alley up to 24 tpi for steel.

Cutting Are you cutting steel or alley or both? If you are cutting only up to 1.6mm low carbon sheet metal and alley, such as the paper thin panels on modern cars, then a tri set (left, right & straight) of good quality aircraft shears will do you very well and after a few weeks you will have the forearm strength or Arnold Schwarzenegger when he was Mr. Olympia.

For cutting big tube, round and flat bar - a cold saw is nice, a hot saw (sometimes called a drop, hot or chop saw) is cost effective. A power hack saw cuts the best but I swear they were all invented to inflict the most mess possible in all workshops. They are not cost effective for folks working from home.

A single phase plasma is superb for light sheet steel and alley and a three phase unit is good for up to 20mm. But plasma cutters require a starting budget of around $2000 and consumable tips and shrouds are expensive.

Oxy/Acetylene if you don't already have it will run you around $200+ for a basic kit plus gas and bottle hire.

If you have a compressor, consider a cheap cut-off tool and 1mm abrasive cut off wheels.

Consider outsourcing for big cutting jobs as there are many engineering shops around. It will all come down to budget and how much you are equipped and skilled to do your own.

If you have CAD and can generate DFX files, this can be another option for outsourcing to a plasma or laser cutter at an engineering works.

Grinding/Linishing again if you have a compressor consider a little air powered surface sander with 50mm abrasive disks. Although a 4 or 5 inch grinder serves the triple purpose of cutting, grinding and linishing just by swapping in the appropriate disks and pads and is probably more cost effective in the long term.

A bench grinder is invaluable and and Australian "Abbot & Ashby" (made in China) 8", single phase unit is versatile and viable at $140 inc. GST. Add an Aussie "Multi Tool arm and you are really set up for linishing but you have the added cost of consumable abrasive belts.

Welding, if you have Oxy you can weld. But Oxy has issues that would be best addressed perhaps in a welding only discussion.

There are a couple of really decent, mini inverter type, single phase units from the likes of Lincoln, Kemppi, BOC and others that come with a MMAW rod holder and you can buy a scratch start TiG torch to go with them as well. There are also some cheap (and sometimes nasty) Chinese ones on the local market also.

Welding probably deserves its own thread though hey.

Drilling There are many decent Jap & German made units on the market. There are some very reasonable Taiwanese pedastle drill units on our market as well. DO NOT buy less than a 3 Morse Taper (3MT) unit.

There are some great text books around too. You must buy the late Carroll Smith's "Engineer to Win".

There are heaps more tools and implements but these are some of the basics without having to win Tatslotto.

All the best bloke!
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Cheers, TJPete