Sounds like they were too hot. I would reduce the heat on the heating pad if possibleI’m now experience SOME chips, in this case a rack of RHC, get absolutely putty-like. I noticed they sounded weird when I took them out of the heating pad and I was able to very easily bend one with my fingers. I flattened them immediately with very light pressure. they’re perfect now, but that was rather scary.
Upon further inspection the pad actually melted itself.. this was done within 30 minutes at 140 so I think some calibration is wrong and it has overheated.. getting a new one
At the factory they use the pancake griddles sold at Kmart to heat the “biscuits” and cut them or put them into the presses. Thats how little heat you needI’m now experience SOME chips, in this case a rack of RHC, get absolutely putty-like. I noticed they sounded weird when I took them out of the heating pad and I was able to very easily bend one with my fingers. I flattened them immediately with very light pressure. they’re perfect now, but that was rather scary.
Most of us that are deep enough down the rabbit hole of chipping to buy everything and learn how to flatten chips are in it for the long haul. I have everything and haven't used it for a while, but would not be interested in selling just because I KNOW that at some point I'll use it all again.
This falls into #4 on my list. More than 1 way to do this, but you have to have something & this is 1 way. It'll cost you something... not sure how much but it would certainly work well
I got mine from Sparkynutz, u might shoot him a DM. He had the jig as well.
I sold 2300 blanks over last couple years. I have been out for a while now. I didn't re-order because the last quote was significantly higher than previous orders.
I switched to the wooden style clamps and have had great success.
Looks like WAY too much clamping pressure was used. Flattening chips only requires a small amount more pressure than you can squeeze using your hand. It’s so little that the barrel can often rotate within the clamp.As an FYI to anyone with as little patience as me, don’t use clamps with smaller contact points. That can crack the blanks.
Yes, that is WAYYY too much clamping force if the ceramic blanks are cracking. You may be squeezing the chips so much that they are not just being flattened but getting thinner with larger diameter.As an FYI to anyone with as little patience as me, don’t use clamps with smaller contact points. That can crack the blanks.
Could be, but I think what I had happening was maybe chips were not hot enough, but they were so warped that I was putting stress on the blank at just one point. When they cracked it happened before the clamps were tightened and chips were still visibly not flat between spacers. Added pics of pre-flattened chips for context.
CPC chips are harder and more brittle (not soft like Paulson), so they are a lot harder to flatten. Likely higher temp is needed to soften them enough such that a much lighter clamping force is needed.
You must be doing something wrong. Look at your edges - they're all concave (except for the one that looks convex.) I'm guessing too much pressure. But whatever it is, it isn't good.
Please don’t try and sell these chips to anyone. You have ruined a lot of them.
Too hot and way too much pressure. Happens when you tighten the clamps after they are overheated. Squish goes the chips.
Yep…affectionately known as “waistbanding”. I have some chips direct from CPC with that issue to some degree, but it can definitely be created at home when squishing chips under pressure.
Yeah, real funny. Ask me how I know.It's all fun and games until your 8 THC mold imprints become 16 THCs.
I think that’s called “Certified Organic” flattening.
I bought some dunes baccarat $20s a while back - 10-15% showed up with edges like that, though not quite as bad. I didn't blame the seller; I'm not sure he ever noticed, and I didn't even notice in the picture. But I couldn't bear looking at them. I sold the squished ones at a loss, with clear pictures of the messed up edges.
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