Question before purchase

[jram]

Hello All,
I'm will be purchasing the Delta Max v2 soon but I have a quick question. I found this review on another site and I'm curious as to the accuracy of this, though if it's something I'll have to do, has anybody done this and what kind of cost should I expect? Below I've copied part of the review, I'm concerned about the section regarding adding an external power supply.I've seen some people on the forum talk about wrapping the machine to contain the heat.Would that remedy the problem?
Here it is

"The 12V power supply does not have the power to heat the heated even to 80c and hold for minimal ABS printing as well documented on their forums . Have to purchase heat resistant copper silicon that I think should be in the kit. In order to get my unit to print both PLA and ABS I had to add an external power supply @ 20v and 25A SSR to drive the heatbed.

[Earthbound]

If you search the forums for Onyx Heated Bed (the hot bed used on the Max) you'll find a recent thread explaining the revision history. I believe the current units ship with a rev7 Onyx bed. Rev3 did not perform well using the 12 volt supply that was included. Nothing wrong with the supply. The resistance of the heating coil was a little too high. Getting a rev3 to the temperatures needed for ABS printing required adding a power supply at higher voltage.

The current version works fine with the included 12v power supply. It is not necessary to add/modify to it. Some users still choose to modify their machines to run the hot bed at a higher voltage to reduce the hot bed warm up time.

The review sounds like typical rev3 Onyx. I have a rev6. It heats up just fine on stock 12v supply. I've had it up to 110C. I measured the warm-up time once (from <25C ambient to 100C in 10:53). Warm up on a rev7 might be a little slower as rev6 got redesigned due, in part, to drawing slightly slightly more amps than intended and nearing the limits of the 15A fuse.

[Nylocke]

An older revision of the Onyx Heated bed had issues with getting past 80C on 12V. The current revision, 7, can get to 100+ reliably. I run mine around 95 all day long (literally) and it has no troubles. As of now, the external PSU is more of an "upgrade" of sorts to decrease the time it takes for the heated bet to heat up. It can take 10-15 minutes on 12V to get to 90C, and Ive heard of people going from 30 to 90C in less than 2 minutes on 24V.

[jram]

If you search the forums for Onyx Heated Bed (the hot bed used on the Max) you'll find a recent thread explaining the revision history. I believe the current units ship with a rev7 Onyx bed. Rev3 did not perform well using the 12 volt supply that was included. Nothing wrong with the supply. The resistance of the heating coil was a little too high. Getting a rev3 to the temperatures needed for ABS printing required adding a power supply at higher voltage.

The current version works fine with the included 12v power supply. It is not necessary to add/modify to it. Some users still choose to modify their machines to run the hot bed at a higher voltage to reduce the hot bed warm up time.

The review sounds like typical rev3 Onyx. I have a rev6. It heats up just fine on stock 12v supply. I've had it up to 110C. I measured the warm-up time once (from <25C ambient to 100C in 10:53). Warm up on a rev7 might be a little slower as rev6 got redesigned due, in part, to drawing slightly slightly more amps than intended and nearing the limits of the 15A fuse.

Thanks Nylocke and Earthbound for the quick responses! That completely eases my mind!

[Earthbound]

I had some hesitation about buying a RMv2 because of the reviews. I went to the NW 3D Printer Expo to see machines up close in action. Met forum user Glacian22 at the SeeMeCNC booth. I ended up ordering my at the show. Can't say enough good things about it. Is it perfect? No. Is it an excellent value? Yes. I've already made some modifications to mine. SeeMeCNC continues to improve various components. Mine came with aluminum u-joints which they changed to acetal plastic soon after my purchase. So I forked out $9 for the new joints and installed them two days ago. Gets rid of issues that some are reporting with the aluminum joints.

Don't be put off by the early reviews. Yes, there is a handful of parts/materials needed to build the kit which are not included. Kapton tape is the most exotic, but it's a couple of bucks on the auction site. The high temp RTV widely available (I got it at NAPA).

[jram]

I had some hesitation about buying a RMv2 because of the reviews. I went to the NW 3D Printer Expo to see machines up close in action. Met forum user Glacian22 at the SeeMeCNC booth. I ended up ordering my at the show. Can't say enough good things about it. Is it perfect? No. Is it an excellent value? Yes. I've already made some modifications to mine. SeeMeCNC continues to improve various components. Mine came with aluminum u-joints which they changed to acetal plastic soon after my purchase. So I forked out $9 for the new joints and installed them two days ago. Gets rid of issues that some are reporting with the aluminum joints.

Don't be put off by the early reviews. Yes, there is a handful of parts/materials needed to build the kit which are not included. Kapton tape is the most exotic, but it's a couple of bucks on the auction site. The high temp RTV widely available (I got it at NAPA).

Thanks for the helpful info. I think I'm going to pull make the order in the next week or so. I can't wait!

[Earthbound]

You can grab the build manual off of their website and see what materials or tools you might need to round up. That way everything will be on hand when the big box arrives.

[jram]

Thanks, I looked thru the manual and it appears to be a laid out really well, I've ordered the Kapton tape and almost have everything else together, making the order soon!