Month: July 2017

Not happy the way the saw is running, there’s to much wheel wobble – why ???

Removed the blade to check the wheels and was shocked to find they are just flopping around, something drastic has happened to the bearings.

For V1.1 we will use the larger 6200 2RS (12/32) bearings, two per wheel mounted in flange blocks.

The motor will be moved closer to the front (reduce footprint) so the V-belt will directly drive a Vee pulley fixed to the back of the lower wheel.

Meanwhile made a hinged blade cover for the left and also added the third thrust bearing to the guide assembly.

BTW: Grabbed another ALDI LED lamp reduced to $10 from $15, last one so don’t make fun about my colour choice.

As posted pulled out the nice brushless motor from the Simpson washing machine and yesterday spent some time thinking about how make the motor mount assembly.

The motor needs to adjust in all four directions, front to back for pulley adjustment and left to right for belt tension.

The motor runs at 1400rpm, perfect for this type of application and has ample power.

Continue reading “8” Bandsaw – Motor mount assembly”

Doing some test cutting on the saw which is powered by a Simpson washing machine motor.

Finally doing some test cutting, the filming abruptly ended but is was simply the drill chuck coming loose on the drive shaft. I think we need a better solution to drive the saw.

https://www.youtube.com/watch?v=Hf9GYMqje_Y

Working out how to wire up and bench test the Simpson washing machine motor.

A very nice brushless 3-wire capacitor start motor on the left and the wiring loom on the right – how do we wire it up ???

Continue reading “8” Bandsaw – Testing the motor”

Video clip of Simpson Encore 555 washing machine motor running on the bench. Looks to be turning like a single phase 4 pole motor…1400rpm…ideal RPM for a bandsaw.

Tomorrow morning I’ll work out a motor mount setup so I can drive the saw with a Vee belt…more to come.

We need something better than a electric drill to drive the saw, what about a bench grinder.

Took off one of the wheels and was preparing to make a pulley for the grinder shaft to drive the saw with a Vee belt when I thought of the Simpson washing machine in the back of the van – see next post.

I haven’t posted any updates for a week or so because I’ve been going backwards – not to worry. Gave up with the Melamine wheels and switched to MDF which is featured in this post. Also spent time setting up a sewing machine motor to power the saw to underpowered. Then tried a grass trimmer motor, power OK but revs are far to high. For now powering the bandsaw with a Bosch drill.

Continue reading “8” Bandsaw – Gave up on Melamine wheels”

Not posted any updates for a week or so because I’ve been going backwards – but that’s OK. Gave up with the Melamine wheels and switched to MDF which is featured in this post. Also spent time setting up a sewing machine motor but not enough grunt, then tried a grass trimmer motor, power OK but revs far to high…so for now powering the bandsaw with a Bosch drill. Another thing…I think the skateboard bearings are really to small even for 8”/20cm wheels, might have to visit Schunk in Scoresby. Continue reading “8” Bandsaw – More design work”