Thanks bro rosy. I see a very busy incoming weekend.

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Re: DIY Bandsaw

Got the plywoods this morning from Timberport in Pasig Ortigas. U.S. Marine plywood with average thickness of 1.125" grabe ang bigat naramdaman ng sasakyan ko.

size is 39" x 41" I bought 3 pcs. @P320 per piece. Pinahati ko na para kasya sa sasakyan.

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Pagdating sa office pinadaanan ko na sa mga delivery namin ang Panda para sa laminate bit.

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Parang sinukat sa need ko. Print says: Pacific Wood Laminates

Re: DIY Bandsaw

Meron na palang nauna sakin gumawa na ka-PHM din natin. Surprisingly it appeared in google search when I was browsing last night for blade guide assembly.

[COLOR="Blue"] http://www.pinoyhandyman.com/showthread.php?t=530&page=2

kumusta na kaya ito..

..and meron palang available na 14" pulley para sa mga kuliglig or hand tractor which fits exactly to my design. I will proceed first sa wooden wheels and if I don't like the outcome I might proceed to T. Alonzo to buy these pulleys parang nakita ko ito minsan sa dulo malapit na sa river just can't recall the exact location.

Re: DIY Bandsaw

Yes bro Armand, clicked the thread and saw the build, can that be considered as a poor man's band saw. Nevertheless it looks so sturdy since most if not all are welded metals for its support.

I have a question bro with regards to the cutting blade, this could be a stupid question from a none wood worker. Doesn't the blade wander from left or right during the process of cutting lumber ? Doesn't the wheel have a sort of a groove or canal to prevent any wandering that may cause blade slipping. Please enlighten me on this matter bro, just not really sure of the groove thing for the blade.

Thanks in advance bro Armand ! 😉

Re: DIY Bandsaw

Yes bro Armand, clicked the thread and saw the build, can that be considered as a poor man's band saw. Nevertheless it looks so sturdy since most if not all are welded metals for its support.

I have a question bro with regards to the cutting blade, this could be a stupid question from a none wood worker. Doesn't the blade wander from left or right during the process of cutting lumber ? Doesn't the wheel have a sort of a groove or canal to prevent any wandering that may cause blade slipping. Please enlighten me on this matter bro, just not really sure of the groove thing for the blade.

Thanks in advance bro Armand ! 😉

Bro rosy, at this point the best persons to answer your questions are Timber and Balarila coz they already have Bandsaws in their shop.

But I'll try to answer your questions from DIYer's point of view:

Regarding blade drift (wandering left to right) meron syang lower and upper blade guides. Yung sa lower guide it is attached under the table while yung upper blade guide naman is malapit sa upper wheel. A blade guide consists of two wooden (some ceramic) blocks that sandwhich (kiss) the blade, and a bearing at the back of the blade to support. Dun sa unang gumawa from PHM parang wala syang blade guide under the table.

Dun naman sa wheel, it is the opposite sa iniisip mo bro kasi instead na "groove" kelangan ay convex yung shape ng crown ng wheel. The blade will always ride to the highest peak of the wheel, a kind of phenomenom na wala pang paliwanag. So the top of the whee should look like a wheel of the bicycle tire (crosscut view).

I will post later the blade guide that I am working now. In fact mas natagalan ako dito ilang araw ko nang ginawagawa sa Sketchup di ko pa madale. Kaya kagabi nag si-search pa ulit ako tsaka lumabas itong link from PHM.

Re: DIY Bandsaw

Here's the poor man's blade guide that i have been working on for days. I will use yakal wood and if it does'nt work pa-welding ko na lang.

Upper blade guide with the bearing and guide blocks.

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and here's the main component na nagpahirap sa buong design. This will be the same for the lower guide inverted lang pagka-kabit.

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some modifications i have done lately, added a lower block for additional support so that the threaded rod can go through too hence slightly off-centred na sya para di bumangga sa shaft.

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the upper wheel is on 2 pillow blocks na rin.

Re: DIY Bandsaw

SALAMAT bro Armand sa clear explanation mo from a DIYer's point of view. Yes I think I'll do that but perhaps will try to confirm it too with bro Willy Fernando, I think he is more experienced, competent to answer and confirm your explanation since he has had several experiences with some heavy duty bandsaw that has passed/gone in his shop.

Thanks again !!! :thanks: 😉 🙂

Re: DIY Bandsaw

Yes experience wise WillyFernando will be the best source of information regarding woodworking machines, i hope he can also share some info regarding that convex wheel crown "phenomenon".

Re: DIY Bandsaw

I went straight to Taytay this morning to have my bandsaw frame bandsawn.

Here are the pics.

Hindi po ako yan, he's one of the operator of 5 large bandsaws in the shop.

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the finish product being loaded to my van.

They charge me P200 pesos for the 4 plywoods, P50 each.

and they're ready for trimming.

I have a video of the sawing action which i will upload later.

Re: DIY Bandsaw

Here's the video of re-sawing on my wooden bandsaw frame. Ang galing ang bilis hanga at aliw na aliw ako.

http://www.youtube.com/watch?v=nbeaApX026k

at eto ang nagpa-nganga ng husto sakin, that's about 20" wide board being sliced.

http://www.youtube.com/watch?v=_s3_ZxWh81k

Re: DIY Bandsaw

Hindi po ako yan, he's one of the operator of 5 large bandsaws in the shop..

Di ba sya ung tumalo kay Paquiao? Bradley ba apelyido non?:outcold::D

Re: DIY Bandsaw

Yes experience wise WillyFernando will be the best source of information regarding woodworking machines, i hope he can also share some info regarding that convex wheel crown "phenomenon".

Pulleys with canals are designed for rubber belts w/c expand as temperature increases. To control the belt from wandering and to increase grip as the pulley turns the canals help a lot. With metal blades they designed the convex crown to reduce blade contact from the wheel base limiting or slowing metal fatigue and blade wear during operation. This allows for a vented rotation and furthermore they add a rubber liner to the wheel like the conveyor belts you see in locally assembled bandsaws to reduce temperature and increase wheel contact during rotation. Hope this helps.:)

Re: DIY Bandsaw

Pulleys with canals are designed for rubber belts w/c expand as temperature increases. To control the belt from wandering and to increase grip as the pulley turns the canals help a lot. With metal blades they designed the convex crown to reduce blade contact from the wheel base limiting or slowing metal fatigue and blade wear during operation. This allows for a vented rotation and furthermore they add a rubber liner to the wheel like the conveyor belts you see in locally assembled bandsaws to reduce temperature and increase wheel contact during rotation. Hope this helps.:)

Wow!! Only here at PHM you can get this first hand information about pulleys and metal wheels. Very valuable tip on conveyor belt being used as tire for bandsaw wheel. Thank you Sir WillyFernando.

Re: DIY Bandsaw

I remember the conveyor belts are available in auto supplies sold as KOREA as it is locally known. My 1985 locally made bandsaw still sports those tires. The only thing is it's very hard to control the blade from wandering given the blade guides and all. During the alignment procedure i used thread lockers like LOCTITE to prevent vibration from screwing with the adjustments. It did help a lot but i guess my wheel shafting must be due for replacement already.

Re: DIY Bandsaw

I remember the conveyor belts are available in auto supplies sold as KOREA as it is locally known. My 1985 locally made bandsaw still sports those tires. The only thing is it's very hard to control the blade from wandering given the blade guides and all. During the alignment procedure i used thread lockers like LOCTITE to prevent vibration from screwing with the adjustments. It did help a lot but i guess my wheel shafting must be due for replacement already.

ARQ in T. Alonzo sells this conveyor belt for P30 per foot. Will check this weekend at Fernando Auto Supply in Concepcion. 🙂

Salamat sa mga tip.