Thread: repair options?

I sharpened my bowl gouge three times to cut the outside of the bowl and up to the point I am at on the inside. I find I can burn the edge off in an instant when working with Jarrah or Blackwood. Two timbers which I have always found to cut hot whether it be on a spindle moulder, router, and even CNC router. It always burns off the same point on my gouge, just as the edge starts to turn up into the wing of the gouge. It ends up covered in black carbon soot except for the 'radiused' edge which melted away. I was actually turning this bowl without gloves, and I kept moving my thumb back because the steel was getting unbearably hot.

I was watching the video footage of when the bowl broke off the tenon and I think I can see what I was doing wrong. Using a bowl finishing scraper, I presented the side of the scraper to the side bowl walls. I did have the handle elevated but that doesn't seem to help because the edge is still presented to the workpiece at 90° or thereabouts. What I should be doing, I think, is moving the handle of the scraper away from me and over the bed of the lathe so that when I elevate the handle I actually have the scraper edge presented at a negative angle and less likely to catch and tear the bowl off the chuck. Either that or I need to get a pair of Incredible Hulk arms.

With a bit of luck, or motivation, I will get some flat panel work sanded and ready for finish tomorrow morning and then I can fix this bowl, or at least start to fix it.

That's the answer to yer problem!! Yer scraper is toooo sharp So wot you got to do is to knock it about a bit and work how yer used to workin init?

I just found your post Smiifie and st as a matter of interest? What is a bowl scraper? All I ever use for my bowls is a 1" round scraper and that gets used for all sorts. Anything that it's too big for and I have a 3/8" round scraper. When I use them in a bowl I always make sure the tool rest is at about the centre of the bowl, or even slightly higher, so that I can get to the centre of the bowl with the handle raised. Then the scraper is presented so that it's giving a definate negative rake. Then if there is any kind of catch it's thrown away from the surface and all I get is a slight kick n the handle. There are exceptions of course and I had one on the little 6" cherry bowl below.

A slightly different situation as it was a VERY wormy bit where several branches parted. Very dry and hard and a knot. The spindle gouge hit the know as I put too much pressure on it and took a lump ut of the side. The bit missing in the photo is only a part of the hole as I had tried mixing a load of shavings with epoxy resin and sticking it back in, but the wood let go and left the shaving/resin mix in place. It stayed and became part of the bowl. The dark areas are cyano soaked bark.





I very rarely use glued on tenons and muck prefer a dovetail recess and on the odd occassion I will turn a recess with a tenon in the recess. Sounds a bit odd, but it works plus it looks good to my eyes too. As for the recess, I have always found that a 2 1/2" dia recess is perfectly OK fo 10 or 12"" bowls. My Jacobs jaws in my Axminster Tools K10 Clubman chuck are almost bullet proof and makes the recess an easy option.

I usually start the blank by mounting it with a screw chuck or hot glue on the top surface to turn the out and underside and for bigger bowls a faceplate with 4 screws.

Sorry, I got a bit carried away and off the topic, so I'll shut up ,for now

what is a bowl scraper?
one of these. https://www.timbecon.com.au/woodturn...ishing-scraper

too sharp you reckon? I dunno if you are joking or not but I do find that a freshly ground scraper loves to bite in and catch easily. Kind of like a brand spankin' new 2 tpi bandsaw blade resawing 8" high. The rake of of the bandsaw teeth pull the timber straight into the blade and break the blade or wipe out the power of the motor.

Well I was going to get this bowl repair underway today but there was a big fat doofus continually getting in my way saying stupid things like "yo kuffy, what about the edge profiling?" "yo kuffy, what about those two 120mm holes which require hockey pucks made to fit?" "yo kuffy, what are you going to do about your clients terribad reclaimed Jarrah which is more defect than select!?"

I made the four hockey pucks on the lathe. rough cut the circle on the bandsaw, drilled a 8mm hole in the center and mount it on the lathe using a piece of 6mm to shorten the length of the wormscrew so it doesn't poke out the face side of the pucks. Then I just scraped it down using my bowl scraper because I couldn't think of a better way of doing it except for something like using a parting tool from the face guided along the edge in a straight line. but that just seemed ambitious so I wimped out and scrape turned it.

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If I may stick my oar in again. When I turn anything like your pucks I start with a square block of wood, slightly larger than the dia of the items and longer than the combined thickness of the pucks. That's to allow the parting off. Stick it between centers and turn to a cylinder the dia you want. Part off to the depth and sand the faces. They are all the same diameter and hopefully the same depth.

Another way is to turn as above, cut to depth on yer band saw and sand the faces..

Good 'ere init

P.S. I'glad that I copied this load of tryping because the system told me that my 'session' had expired when I tried to 'go advanced'! So I will try again, third time, without me smilies?? I hope!

5th try!

Busy busy busy..... I'm sure you'll get the the bowl repair eventually..... Hopefully you're enjoying all the other little odd jobs as well.

Between centers and parting the pucks off would end up having an end grain show side. I needed face grain to sorta kinda match the rest of the piece. Ideally it would have a perfect grain match but I wasn't gonna mess with veneering the parts using a matched set of veneers for the price this dood is paying.

I did get the bowl finished today. It is smooth and shiny and looks like a bowl so it passed my quality control easily. I'll get some photos up tomorrow arvo after werk.

Do you know what happens when you remake a spigot much larger than the first when using the specifications from the chuck supplier to size the spigot?
answer: you turn the big spigot, change cole jaws back to normal dovetail jaws only to find that they are too small so you go back to cole jaws to make the spigot smaller and then back to dovetail jaws. It may sound easy but time consuming, but it is much harder to do when you are giving yourself solid uppercuts at the same time

"Between centers and parting the pucks off would end up having an end grain show side. I needed face grain to sorta kinda match the rest of the piece."

Make your blank with the grain running across the length instead of along it?

You say 'the rest of the piece'? What is it? I can't imagine anyone being too interested in matching grain on ordinary hockey pucks?

Originally Posted by Jonzjob

You say 'the rest of the piece'? What is it? I can't imagine anyone being too interested in matching grain on ordinary hockey pucks?

The 'hockey pucks" as I call them have nothing to do with hockey. They are just 120mm diameter x 30mm thick discs which fit into the hole in the record player plinth. If you look at the photo above, you will see four "hockey pucks" sitting on top of a Jarrah thing. Those hockey pucks fit inside the 120mm hole in the Jarrah thing.

I don't want to ask the next question but I did a search on 'Jarra thing'

https://www.sunfrog.com/Names/Its-a-...and.html?70225

That is obviously not what your Jarra thing is, is it? Woud you be so kind as to enlighten me pretty please

Originally Posted by Kuffy

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Can u see the image? Four "hockey pucks" sitting on top of the Jarrah thing. The Jarrah thing is a solid timber record player plinth made to suit a Garrard 301 turntable.

After my computer finishes rendering a video, I'll post pics of the most awesomest bowl made from s/crap. Takes ages to render video with a $200 PC.

Is it worth all that trouble for a cheap old turntable like that Only kidding , and jealous I always wanted one but could never afford it!

I finished up with an Awai LX110 linear tracking programmable jobbie. Works very well but not been used for an age now. Come to think of it none of my sterio has been used for an age now? This retirement is keeping me far to busy busy! Just finished getting ready for a SPANC inspection on Wednesday!!

I look forward to seeing the pikkies.

Ok the bowl is all done. The video is edited and I'll upload that to YouTube this evening and probably schedule the video to be public sometime during the day tomorrow. It took me so long to turn this bowl. I have 5 hours of video footage which included some of the buzzing/thicknessing/ripping of the s/crap boards, but it doesn't include everything I did so the bowl probably spent 8 hours of my time all up.

Anyways, I started with a bunch of s/crap stick offcuts and short not very useful boards which I was beginning to trip over. So I had my way with them and made them into panels. I made sure the panels were symmetrical.
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Then I chose five of the panels to glue up into a bowl blank.
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The rest of the leftover panels I quickly made into circles, slapped a champher edge on the under side, sanded the hell outta em and stuck em in a bucket of liquid paraffin. Good for making a sandwich on, or serving cheese or something along those lines. They are only small. I think the biggest was about 280mm diameter.
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Then I spent a bajillion hours turning the bowl blank into something which resembles a bowl. It was a pain in the butt to turn this. None of the timbers are hard, but the Blackwood is bloody soft compared to the Myrtle and Jarrah and so 'if' I managed to rub the bevel of my gouge it was kind of jumpy between the harder myrtle/jarrah and blackwood. Probably mostly a skill error on my part, but by the end of it I was wishing I had used River Redgum instead of the blackwood. Live n learn.

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The final dimensions were 234mm diameter x 76mm high.

Nice to see the final product.... By the sounds of it you have learnt a bunch again, and im glad you finished it off. Can't wait to view the video....
Cheers
Gab