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View Full Version : ER11 adaptor. Seeking user experiences



jakab
10-22-2014, 10:39 AM
Much has been said in this Forum about ER11 adaptors. Many seem to have bought them from eBay.

However, I have not seen many (any) comments from people who have bought them and are using them.

I would like to know a few things, so here we go:



How happy are you with the adaptors themselves
Do you notice any quality problems like wobble, runout, noise, quality of cut
Where do you get your bits from. Can you provide part numbers, websites, prices that you have paid
What are the specs for the bits that could be used with the adaptors, I suspect that the overall length is kind of critical
Have you saved any money by using the adaptors and bits when compared to the bits sold expressly for the CT chuck
Any other observations you would like to contribute


My motivation is to be able to continue carving at a more reasonable price, Yesterday I broke two 1/8 cutting bit because of a cut motor failure, so there goes 80 bucks plus shipping, and I am in Canada so the shipping costs is even worse.

Thanks a lot for sharing.

...Peter

CNC Carver
10-22-2014, 11:00 AM
Sorry can not give experience with ER11. But here is a low cost replacement for cutting bit. I have used with good results. http://www.ebay.com/itm/1-8-CUTTING-BIT-FOR-CARVEWRIGHT-MACHINES-OR-COMPUCARVE-Kyocera-Microtools-/151407487221?pt=Routers_Bits&hash=item234096e8f5

jakab
10-22-2014, 11:37 AM
Sorry can not give experience with ER11. But here is a low cost replacement for cutting bit. I have used with good results. http://www.ebay.com/itm/1-8-CUTTING-BIT-FOR-CARVEWRIGHT-MACHINES-OR-COMPUCARVE-Kyocera-Microtools-/151407487221?pt=Routers_Bits&hash=item234096e8f5

Thanks, that looks like a good alternative. I take it you use these with a 1/4" collet?
...Peter

blhutchens
10-22-2014, 11:41 AM
http://www.ebay.com/itm/New-1pcs-1-2-ER11-28L-Straight-collet-chuck-and-3pcs-ER11-collet-1-4-3-16and1-8-/281142871145?pt=BI_Tool_Work_Holding&hash=item41756bc469

here is the link for an er11. I bought 2 and have been really happy with them.
It seems as though they fit a little snug in the CT. I chucked mine up in a drill and emory clothed them until they fit better.
they also give you the option to buy 1/8 in. shank cutting bits which are a lot cheaper. They are all over ebay. I usually buy in bulk

jakab
10-22-2014, 12:04 PM
http://www.ebay.com/itm/New-1pcs-1-2-ER11-28L-Straight-collet-chuck-and-3pcs-ER11-collet-1-4-3-16and1-8-/281142871145?pt=BI_Tool_Work_Holding&hash=item41756bc469

here is the link for an er11. I bought 2 and have been really happy with them.
It seems as though they fit a little snug in the CT. I chucked mine up in a drill and emory clothed them until they fit better.
they also give you the option to buy 1/8 in. shank cutting bits which are a lot cheaper. They are all over ebay. I usually buy in bulk

Thanks for your input. Would you mind sharing the URL for the bits? Like you say, there are so many to choose from, I have no idea what to look for, except 1/8 cutting, how about length?

...Peter

blhutchens
10-22-2014, 12:20 PM
Thanks for your input. Would you mind sharing the URL for the bits? Like you say, there are so many to choose from, I have no idea what to look for, except 1/8 cutting, how about length?

...Peter

I am looking through my records to find the link. I think I found them on the forum. If you do a search for 1/8 " cutting bits maybe you can find it.

Brent

bergerud
10-22-2014, 12:32 PM
There are features of the ER11M adapters that I think one, after trying it, cannot live without.

1. it allows one to experiment with different types of bits of which there are many.

2. it allows one to use bits which have a short flute length and do not break. (no more cutout stress!)

3. it allows one to use cheap (as low as $2 each) Chinese or ebay carbide bits. (Some better than others of course.)

Even though I use an ER20M spindle which holds any size bit, but I still use the ER11M adapters in it for either really small bits or sets of bits in multi-bit projects. The ER11M adapter works just like the CT adapter in keeping the bit lengths constant for bit changes.

The ER11M adapter was designed for the CT. One would need to use care if using it with the Rock and one should not use it for the long reach bits.

Have a browse:

http://www.aliexpress.com/wholesale?catId=0&initiative_id=AS_20141022092749&SearchText=3.175+end+mills

http://www.ebay.ca/sch/i.html?_from=R40&_trksid=p3984.m570.l1313.TR0.TRC0.H0.X3.175+end+mi lls&_nkw=3.175+end+mills&_sacat=0

http://www.dhgate.com/wholesale/search.do?act=search&sus=&searchkey=3.175+end+mills&catalog=#Homesearch201403

jakab
10-22-2014, 02:35 PM
There are features of the ER11M adapters that I think one, after trying it, cannot live without.

1. it allows one to experiment with different types of bits of which there are many.

2. it allows one to use bits which have a short flute length and do not break. (no more cutout stress!)

3. it allows one to use cheap (as low as $2 each) Chinese or ebay carbide bits. (Some better than others of course.)

Even though I use an ER20M spindle which holds any size bit, but I still use the ER11M adapters in it for either really small bits or sets of bits in multi-bit projects. The ER11M adapter works just like the CT adapter in keeping the bit lengths constant for bit changes.

The ER11M adapter was designed for the CT. One would need to use care if using it with the Rock and one should not use it for the long reach bits.

Have a browse:

http://www.aliexpress.com/wholesale?catId=0&initiative_id=AS_20141022092749&SearchText=3.175+end+mills

http://www.ebay.ca/sch/i.html?_from=R40&_trksid=p3984.m570.l1313.TR0.TRC0.H0.X3.175+end+mi lls&_nkw=3.175+end+mills&_sacat=0

http://www.dhgate.com/wholesale/search.do?act=search&sus=&searchkey=3.175+end+mills&catalog=#Homesearch201403

That certainly makes a lot of sense. I see that bits don't have to be real expensive and even though they may not last as long they can be replaced more often..

One question still remains, and I hope you can answer it:

What length bit will work with the ER11 adaptor on the CT? Is bit length a factor I should worry about?

In the URLS you provided there are bits of different lengths, so which ones would I pick?

Thanks again.

...Peter

bergerud
10-22-2014, 04:01 PM
I have never had a problem with bits being too short. The ER11M adapter adds another 1/2" below the CT and so, even though some bits are shorter, it is not a problem. The ER11M just makes it to the board so even the shortest bits work.

What I would recommend, is two flute bits. They give more chip clearance and only give the "shrill" when they are dull. Three and four flute bits seem to shrill all the time. I believe this is because each cutting edge is not given enough wood to cut and the cutting edges alternate between rubbing and cutting.

It is hard to recommend a supplier. They are moving targets. By the time I use all 10 of the bits I bought, the product or supplier may have changed. For the 1/8" cutting bits, I buy ones with around 1/2" , 3/4", and 1" length of cuts (LOC).

Another thing that one can do with the ER11M, is use bits with 6 mm shanks. There are many carving bits from China with 6 mm shanks.

DickB
10-22-2014, 05:01 PM
I highly recommend the ER11 adaptor. Dan did a great job on making these available. Ditto his advice on two-flute bits, especially with the more common 30 degree helix angle. I had terrible burning problems when LHR changed the design of their 1/8" cutting bits: http://forum.carvewright.com/showthread.php?23584-New-1-8-quot-cutting-bit-causing-serious-overheating-problem. While they sorted out the problem, I was able to switch to a two-flute bit in the ER11 adapter and stay in business.

jakab
10-22-2014, 05:13 PM
I have never had a problem with bits being too short. The ER11M adapter adds another 1/2" below the CT and so, even though some bits are shorter, it is not a problem. The ER11M just makes it to the board so even the shortest bits work.

What I would recommend, is two flute bits. They give more chip clearance and only give the "shrill" when they are dull. Three and four flute bits seem to shrill all the time. I believe this is because each cutting edge is not given enough wood to cut and the cutting edges alternate between rubbing and cutting.

It is hard to recommend a supplier. They are moving targets. By the time I use all 10 of the bits I bought, the product or supplier may have changed. For the 1/8" cutting bits, I buy ones with around 1/2" , 3/4", and 1" length of cuts (LOC).

Another thing that one can do with the ER11M, is use bits with 6 mm shanks. There are many carving bits from China with 6 mm shanks.

I believe the 6mm adaptor is not included in the kit. Will the 1/4 inch adaptor work with 6mm? I see you specifically say ER11M, I take it the M is for metric. is that available separately?

I get that no bit is too short, that's great. Any chance of buying bits that are too long?

Sorry to be such a pest with details. I just would like to be safe and not get stuff that won't work ;)

BTW, I'm already convinced and have ordered the adaptor in eBay.

Thanks a lot.

...Peter

jakab
10-22-2014, 05:17 PM
I highly recommend the ER11 adaptor. Dan did a great job on making these available. Ditto his advice on two-flute bits, especially with the more common 30 degree helix angle. I had terrible burning problems when LHR changed the design of their 1/8" cutting bits: http://forum.carvewright.com/showthread.php?23584-New-1-8-quot-cutting-bit-causing-serious-overheating-problem. While they sorted out the problem, I was able to switch to a two-flute bit in the ER11 adapter and stay in business.

Thanks for the information DickB. I am sold. I remember reading the about the problem with the new LHR 1/8 bits.

I certainly didn't know about that 2 flute was better than 4 flute and also the helix angle.

...Peter

DickB
10-22-2014, 05:22 PM
I learned about helix angle the hard way!

bergerud
10-22-2014, 05:54 PM
The M is for "mini nut". The ER11A has a larger hex nut while the ER11M has the smaller castle like nut. The threads are also finer on the M.

The 1/4" collet will hold a 6 mm (0.236") shank. I also have metric collets. (It is nice when the collet just fits.)

I do not think a bit could be too long. The shank can just go further up into the chuck.

FWMiller
10-22-2014, 10:08 PM
I got two of the ER11 and use them on almost every project. There are many did including Amazon that sell bits at any price range. It just takes time to sort through them all. There are also lots of links in posts on the forum of stuff folks here have tried that are very helpful. Now it doesn't feel nearly as bad when I make a mistake and snap off a bit since its easy to keep a while bunch of backups on hand. I have 1.187 still and have not run into any issues with bit length at all so far. It was as good a purchase as my upgrade to the CT chuck.

jakab
10-23-2014, 09:26 AM
The M is for "mini nut". The ER11A has a larger hex nut while the ER11M has the smaller castle like nut. The threads are also finer on the M.

The 1/4" collet will hold a 6 mm (0.236") shank. I also have metric collets. (It is nice when the collet just fits.)

I do not think a bit could be too long. The shank can just go further up into the chuck.

Great to know. Mine already shipped, now the wait till it gets here :)

jakab
10-23-2014, 09:29 AM
I got two of the ER11 and use them on almost every project. There are many did including Amazon that sell bits at any price range. It just takes time to sort through them all. There are also lots of links in posts on the forum of stuff folks here have tried that are very helpful. Now it doesn't feel nearly as bad when I make a mistake and snap off a bit since its easy to keep a while bunch of backups on hand. I have 1.187 still and have not run into any issues with bit length at all so far. It was as good a purchase as my upgrade to the CT chuck.

Thanks for your insight. I'm looking forward to using mine when it arrives. Bergerud suggested a few websites to look for bits, so I'll do that and have some on hand for when the ER11 gets here.

...Peter

fwharris
10-02-2022, 03:17 PM
Hey Dan bergerud any chance that you can contact the supplier for the ER11 adapters to make up some more?

DickB
10-02-2022, 03:24 PM
https://www.ebay.com/itm/225127411568?hash=item346aa3af70%3Ag%3AA0cAAOSwuPd jAQi2&amdata=enc%3AAQAHAAAAoDs%2F1NLZ9%2F1Bwz8Pha1pLH1ae uCxEtlaOKoJCCVyw3%2FdeIqAE4KqwhQBc4ePiowPSX5W9mBw9 rhMYXK3AQwFui%2F5MiBJLqVnc%2F51WuWsI1lMyr4EZnXBAvA LbP4j9P%2BjDyXM0utJlZWUkoT%2FSu2bupygZS99Er6i1rPJz z9O7b%2FauT9CUUO761f%2F2%2F%2F5FuH8mW5T0Jwyxhbe8Rr keGsVTtw%3D%7Ctkp%3ABk9SR-y5x53zYA

fwharris
10-03-2022, 01:07 PM
That looks like the one. Only thing missing is the bit collets but one can get those separate.. Thanks for the link. I will update the FB page post about this..

Is this the one you are using?


https://www.ebay.com/itm/225127411568?hash=item346aa3af70%3Ag%3AA0cAAOSwuPd jAQi2&amdata=enc%3AAQAHAAAAoDs%2F1NLZ9%2F1Bwz8Pha1pLH1ae uCxEtlaOKoJCCVyw3%2FdeIqAE4KqwhQBc4ePiowPSX5W9mBw9 rhMYXK3AQwFui%2F5MiBJLqVnc%2F51WuWsI1lMyr4EZnXBAvA LbP4j9P%2BjDyXM0utJlZWUkoT%2FSu2bupygZS99Er6i1rPJz z9O7b%2FauT9CUUO761f%2F2%2F%2F5FuH8mW5T0Jwyxhbe8Rr keGsVTtw%3D%7Ctkp%3ABk9SR-y5x53zYA

want2b
10-04-2022, 10:26 AM
This is what I have, little more expensive but comes with the collets. From the same supplier.
https://www.ebay.com/itm/224685575769?hash=item34504dce59:g:tcYAAOSw0dJfobR t&amdata=enc%3AAQAHAAAAwC0qEdVj2sDgtljIoc1hqLZIbRM4N dQa%2F3SQ7ez0Dg00Bfv3j5kNMBItV4gj2sW74qAilHcVCmS3e CFDxuudGFRdNIHYYCFqFyQ9hGk6O9x5F1Qn6D3INIizCaxbxz% 2FaDqGFXSDONj0uQW0b2h%2BxMMkRaZKsHmRMElc%2BVSvgQip 9txI58BREN7anpQXGjVAthe%2FePe0p5j8ljc0hx8mnkIh%2Fm lcoLaNJt3XWsGEEBdcWhsjQkPUsfTQ07Gl3E%2F%2BXxA%3D%3 D%7Ctkp%3ABk9SR4zXprn0YA

oscarl48
10-04-2022, 02:45 PM
Thank you for the info. I bought one of the one's Dan had made but in case I need another one it's nice to know they are available.

fwharris
10-05-2022, 06:20 PM
Thanks for the link. Yes a little more that the original posting from Dan. Probably cost of materials...



This is what I have, little more expensive but comes with the collets. From the same supplier.
https://www.ebay.com/itm/224685575769?hash=item34504dce59:g:tcYAAOSw0dJfobR t&amdata=enc%3AAQAHAAAAwC0qEdVj2sDgtljIoc1hqLZIbRM4N dQa%2F3SQ7ez0Dg00Bfv3j5kNMBItV4gj2sW74qAilHcVCmS3e CFDxuudGFRdNIHYYCFqFyQ9hGk6O9x5F1Qn6D3INIizCaxbxz% 2FaDqGFXSDONj0uQW0b2h%2BxMMkRaZKsHmRMElc%2BVSvgQip 9txI58BREN7anpQXGjVAthe%2FePe0p5j8ljc0hx8mnkIh%2Fm lcoLaNJt3XWsGEEBdcWhsjQkPUsfTQ07Gl3E%2F%2BXxA%3D%3 D%7Ctkp%3ABk9SR4zXprn0YA