Showing posts with label portable metal bandsaw. Show all posts
Showing posts with label portable metal bandsaw. Show all posts

Friday, December 14, 2018

My Portable Bandsaw

So as mentioned before here is my solution for a portable bandsaw. I didn't build anything here, ha, ha, it was solved with money, but I waited for the right deal.

For many years Canadian Tire had a nice, small, portable, 18V, metal bandsaw branded "Maximum", their top in house brand. The price was $200 for the saw, charger and one battery, ell cheapo (me, ha, ha), couldn't see spending that kind of money. So I waited. I walked into the store one day and the saw and all accessories were on for half price, and they were willing to haggle a little. Turns out with the onset of ion batteries the saw was being discontinued and they wanted to clear inventory.

So for a little more than the regular price of one saw unit, I got everything you see in the picture below, except for the power supply of course. I use the saw with the mounting base in the machine shop for doing small material cut offs. I got the base for $10. Half price pus a further discount for the damaged box that looked like it had been kicked around in the warehouse for years.

I got two extra batteries with the deal but it was clear they were not going to be available for replacement in the future. I have had alot of use out of these saws for 6 or 7 years now and the batteries are holding out well. I have broke two blades in that time, but that is to be expected with such small wheels.

As a backup for when batteries can no longer be replaced I purchased a adjustable power supply. This should handle all my older battery operated tools as they die. They will then become corded tools, rather than scraping them. The power supply will handle 0-33 amps adjustable from 10-18 volts which will cover all of my older cordless tools.

Speaking of dead batteries, when I pulled the materials for the drill press, I found a old dead battery, 12V, Ryobi drill, that I had taken apart, I saved the the chuck, drive and electrical. Lots of power in this little unit. It took two battery charges, but when I built this place, I used it to drill a 1 1/4" disc out of the side of a 8" well pipe. This might be a good idea for the power unit for the sensitive drill press.

Portable Metal Cutting Bandsaw

Here is a plan for a portable metal cutting bandsaw from the January 1956 Popular Science magazine. This is definitely in the class of advanced hobby machinist. Some would say it's easier now a days to just buy one, but most know that price isn't everything, there is alot of knowledge and enjoyment generated from producing a project like this yourself.

The most difficult is probably the gear reductions, mainly the bevel gear drive box. A easier solution might be to use the bevel drive box from a angle grinder. Some might say "Why not use the whole angle grinder as the power unit?". Speed is not reduced in a angle grinder and the output speed would be to high.

I have always considered one of these, very useful for working with smaller metal shapes. Check out the next post for my solution. A saw like this won't eliminate use of a hacksaw all together, but it comes close.